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https://github.com/php/php-src.git
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478 lines
6.6 KiB
PHP
478 lines
6.6 KiB
PHP
--TEST--
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Test fseek(), ftell() & rewind() functions : usage variations - all r and a modes, SEEK_SET
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--FILE--
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<?php
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/* Prototype: int fseek ( resource $handle, int $offset [, int $whence] );
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Description: Seeks on a file pointer
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Prototype: bool rewind ( resource $handle );
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Description: Rewind the position of a file pointer
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Prototype: int ftell ( resource $handle );
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Description: Tells file pointer read/write position
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*/
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// include the file.inc for common functions for test
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include ("file.inc");
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/* Testing fseek(),ftell(),rewind() functions
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1. All read and append modes
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2. Testing fseek() with whence = SEEK_SET
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*/
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echo "*** Testing fseek(), ftell(), rewind() : whence = SEEK_SET & all r and a modes ***\n";
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$file_modes = array( "r","rb","rt","r+","r+b","r+t",
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"a","ab","at","a+","a+b","a+t");
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$file_content_types = array( "text_with_new_line","alphanumeric");
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$offset = array(-1, 0, 1, 512, 600); // different offsets
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$filename = dirname(__FILE__)."/fseek_ftell_rewind_variation3.tmp"; // this is name of the file created by create_files()
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/* open the file using $files_modes and perform fseek(),ftell() and rewind() on it */
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echo "*** Testing fseek() with whence = SEEK_SET ***\n";
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foreach($file_content_types as $file_content_type){
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echo "\n-- File having data of type ". $file_content_type ." --\n";
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foreach($file_modes as $file_mode) {
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echo "-- File opened in mode ".$file_mode." --\n";
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create_files ( dirname(__FILE__), 1, $file_content_type, 0755, 512, "w", "fseek_ftell_rewind_variation",
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3, "bytes", ".tmp"); //create a file with 512 bytes size
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$file_handle = fopen($filename, $file_mode);
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if (!$file_handle) {
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echo "Error: failed to fopen() file: $filename!";
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exit();
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}
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foreach($offset as $count){
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var_dump( fseek($file_handle,$count,SEEK_SET) );
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var_dump( ftell($file_handle) ); // confirm the file pointer position
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var_dump( feof($file_handle) ); //ensure that file pointer is not at end
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} //end of offset loop
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//close the file and check the size
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fclose($file_handle);
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var_dump( filesize($filename) );
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delete_file($filename); // delete file with name
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} //end of file_mode loop
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} //end of file_content_types loop
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echo "Done\n";
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?>
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--EXPECTF--
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*** Testing fseek(), ftell(), rewind() : whence = SEEK_SET & all r and a modes ***
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*** Testing fseek() with whence = SEEK_SET ***
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-- File having data of type text_with_new_line --
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-- File opened in mode r --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode rb --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode rt --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode r+ --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode r+b --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode r+t --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode ab --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode at --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a+ --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a+b --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a+t --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File having data of type alphanumeric --
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-- File opened in mode r --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode rb --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode rt --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode r+ --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode r+b --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode r+t --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode ab --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode at --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a+ --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a+b --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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-- File opened in mode a+t --
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int(-1)
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int(0)
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bool(false)
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int(0)
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int(0)
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bool(false)
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int(0)
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int(1)
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bool(false)
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int(0)
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int(512)
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bool(false)
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int(0)
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int(600)
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bool(false)
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int(512)
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Done
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