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657 lines
16 KiB
PHP
657 lines
16 KiB
PHP
--TEST--
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Test fread() function : usage variations - read some/all chars, write only mode (Bug #42036)
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--FILE--
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<?php
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/*
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Prototype: string fread ( resource $handle [, int $length] );
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Description: reads up to length bytes from the file pointer referenced by handle.
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Reading stops when up to length bytes have been read, EOF (end of file) is
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reached, (for network streams) when a packet becomes available, or (after
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opening userspace stream) when 8192 bytes have been read whichever comes first.
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*/
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/* Try reading some or all content of the file opened in write only mode */
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// include the file.inc for common functions for test
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include ("file.inc");
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/* Function : function check_read(resource $file_handle, int $read_size, int $expect_size)
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Description : Read data from file of size $read_size and verifies that $expected_size no. of
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bytes are read.
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$file_handle : File Handle
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$read_size : No. of bytes to be read.
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$expect_size : Expected data length
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Returns: returns the data read
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*/
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function check_read($file_handle, $read_size, $expect_size) {
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// print file pointer position before read
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var_dump( ftell($file_handle) );
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var_dump( feof($file_handle) );
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// read the data of size $read_size
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echo "Reading $read_size bytes from file, expecting $expect_size bytes ... ";
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$data_from_file = fread($file_handle, $read_size);
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// check if data read is of expected size
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if ( strlen($data_from_file) == $expect_size)
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echo "OK\n";
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else
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echo "Error reading file, total number of bytes read = ".strlen($data_from_file)."\n";
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// file pointer position after read
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var_dump( ftell($file_handle) );
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// check if file pointer at eof()
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var_dump( feof($file_handle) );
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echo "\n";
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return $data_from_file;
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}
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echo "*** Testing fread() : usage variations ***\n";
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$file_modes = array("a","ab","at",
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"w","wb","wt",
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"x","xb","xt" );
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$file_content_types = array("numeric","text","text_with_new_line", "alphanumeric");
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foreach($file_content_types as $file_content_type) {
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echo "\n-- Testing fread() with file having content of type ". $file_content_type ." --\n";
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/* open the file using $files_modes and perform fread() on it */
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foreach($file_modes as $file_mode) {
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if(!strstr($file_mode,"x")){
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/* create files with $file_content_type */
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create_files ( dirname(__FILE__), 1, $file_content_type, 0755, 1, "w", "fread_variation", 2);
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}
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$filename = dirname(__FILE__)."/fread_variation2.tmp"; // this is name of the file created by create_files()
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echo "-- File opened in mode ".$file_mode." --\n";
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$file_handle = fopen($filename, $file_mode);
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if (!$file_handle) {
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echo "Error: failed to fopen() file: $filename!";
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exit();
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}
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if(strstr($file_mode,"w") || strstr($file_mode,"x") ) {
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fill_file($file_handle, $file_content_type, 1024);
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}
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rewind($file_handle);
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echo "-- Reading entire file content, expeceted : 0 bytes --\n";
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// read from file, by giving the file actual size,
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$data_from_file = check_read($file_handle, 1024, (strstr($file_mode, "+") ? 1024 : 0 ) );
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// calculate the hash and dump it, if data read, expecting here no data was read
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if ( $data_from_file != false)
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var_dump( md5($data_from_file) );
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// reading file by giving less than its size
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echo "-- Reading file content less than max. file size, expeceted : 0 bytes --\n";
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rewind($file_handle);
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$data_from_file = check_read($file_handle, 1000, (strstr($file_mode, "+") ? 1000 : 0 ) );
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// calculate the hash and dump it, if data read, expecting here no data was read
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if ( $data_from_file != false)
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var_dump( md5($data_from_file) );
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// now close the file
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fclose($file_handle);
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// delete the file created
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delete_file($filename); // delete file
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} // end of inner foreach loop
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}// end of outer foreach loop
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echo "Done\n";
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?>
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--EXPECTF--
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*** Testing fread() : usage variations ***
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-- Testing fread() with file having content of type numeric --
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-- File opened in mode a --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode ab --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode at --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode w --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode wb --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode wt --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode x --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode xb --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode xt --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Testing fread() with file having content of type text --
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-- File opened in mode a --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode ab --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode at --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode w --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode wb --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode wt --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode x --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode xb --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode xt --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Testing fread() with file having content of type text_with_new_line --
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-- File opened in mode a --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode ab --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode at --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode w --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode wb --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode wt --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode x --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode xb --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode xt --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Testing fread() with file having content of type alphanumeric --
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-- File opened in mode a --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode ab --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- Reading file content less than max. file size, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1000 bytes from file, expecting 0 bytes ... OK
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int(0)
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bool(false)
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-- File opened in mode at --
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-- Reading entire file content, expeceted : 0 bytes --
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int(0)
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bool(false)
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Reading 1024 bytes from file, expecting 0 bytes ... OK
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|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- File opened in mode w --
|
|
-- Reading entire file content, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1024 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- File opened in mode wb --
|
|
-- Reading entire file content, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1024 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- File opened in mode wt --
|
|
-- Reading entire file content, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1024 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- File opened in mode x --
|
|
-- Reading entire file content, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1024 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- File opened in mode xb --
|
|
-- Reading entire file content, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1024 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- File opened in mode xt --
|
|
-- Reading entire file content, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1024 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
-- Reading file content less than max. file size, expeceted : 0 bytes --
|
|
int(0)
|
|
bool(false)
|
|
Reading 1000 bytes from file, expecting 0 bytes ... OK
|
|
int(0)
|
|
bool(false)
|
|
|
|
Done
|