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340 lines
9.1 KiB
PHP
340 lines
9.1 KiB
PHP
--TEST--
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Test strpos() function
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--INI--
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precision=14
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--FILE--
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<?php
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/* Prototype: int strpos ( string $haystack, mixed $needle [, int $offset] );
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Description: Find position of first occurrence of a string
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*/
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echo "*** Testing basic functionality of strpos() ***\n";
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var_dump( strpos("test string", "test") );
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var_dump( strpos("test string", "string") );
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var_dump( strpos("test string", "strin") );
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var_dump( strpos("test string", "t s") );
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var_dump( strpos("test string", "g") );
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var_dump( strpos("te".chr(0)."st", chr(0)) );
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var_dump( strpos("tEst", "test") );
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var_dump( strpos("teSt", "test") );
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var_dump( @strpos("", "") );
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var_dump( @strpos("a", "") );
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var_dump( @strpos("", "a") );
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var_dump( @strpos("\\\\a", "\\a") );
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echo "\n*** Testing stropos() to find various needles and a long string ***\n";
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$string =
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"Hello world,012033 -3.3445 NULL TRUE FALSE\0 abcd\xxyz \x000 octal\n
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abcd$:Hello world";
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/* needles in an array to get the position of needle in $string */
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$needles = array(
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"Hello world",
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"WORLD",
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"\0",
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"\x00",
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"\x000",
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"abcd",
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"xyz",
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"octal",
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"-3",
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-3,
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"-3.344",
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-3.344,
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NULL,
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"NULL",
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"0",
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0,
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TRUE,
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"TRUE",
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"1",
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1,
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FALSE,
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"FALSE",
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" ",
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" ",
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'b',
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'\n',
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"\n",
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"12",
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"12twelve",
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$string
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);
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/* loop through to get the "needle" position in $string */
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for( $i = 0; $i < count($needles); $i++ ) {
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echo "Position of '$needles[$i]' is => ";
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var_dump( strpos($string, $needles[$i]) );
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}
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echo "\n*** Testing strpos() with possible variations in offset ***\n";
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$offset_values = array (
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1, // offset = 1
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"string", // offset as string, converts to zero
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NULL, // offset as string, converts to zero
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"", // offset as string, converts to zero
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"12string", // mixed string with int and chars
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"0",
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TRUE,
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NULL,
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FALSE,
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"string12",
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"12.3string", // mixed string with float and chars
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);
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/* loop through to get the "needle" position in $string */
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for( $i = 0; $i < count( $offset_values ); $i++ ) {
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echo "Position of 'Hello' with offset '$offset_values[$i]' is => ";
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var_dump( strpos($string, "Hello", $offset_values[$i]) );
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}
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echo "\n*** Testing Miscelleneous input data ***\n";
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echo "-- Passing objects as string and needle --\n";
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/* we get "Catchable fatal error: saying Object of class needle could not be
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converted to string" by default when an object is passed instead of string:
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The error can be avoided by chosing the __toString magix method as follows: */
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class string
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{
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function __toString() {
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return "Hello, world";
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}
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}
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$obj_string = new string;
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class needle
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{
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function __toString() {
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return "world";
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}
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}
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$obj_needle = new needle;
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var_dump( strpos("$obj_string", "$obj_needle") );
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echo "\n-- Passing an array as string and needle --\n";
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$needles = array("hello", "?world", "!$%**()%**[][[[&@#~!");
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var_dump( strpos($needles, $needles) ); // won't work
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var_dump( strpos("hello?world,!$%**()%**[][[[&@#~!", "$needles[1]") ); // works
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var_dump( strpos("hello?world,!$%**()%**[][[[&@#~!", "$needles[2]") ); // works
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echo "\n-- Passing Resources as string and needle --\n";
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$resource1 = fopen(__FILE__, "r");
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$resource2 = opendir(".");
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var_dump( strpos($resource1, $resource1) );
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var_dump( strpos($resource1, $resource2) );
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echo "\n-- Posiibilities with null --\n";
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var_dump( strpos("", NULL) );
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var_dump( strpos(NULL, NULL) );
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var_dump( strpos("a", NULL) );
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var_dump( strpos("/x0", "0") ); // Hexadecimal NUL
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echo "\n-- A longer and heredoc string --\n";
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$string = <<<EOD
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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EOD;
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var_dump( strpos($string, "abcd") );
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var_dump( strpos($string, "abcd", 72) ); // 72 -> "\n" in the first line
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var_dump( strpos($string, "abcd", 73) ); // 73 -> "abcd" in the second line
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var_dump( strpos($string, "9", (strlen($string)-1)) );
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echo "\n-- A heredoc null string --\n";
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$str = <<<EOD
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EOD;
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var_dump( strpos($str, "\0") );
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var_dump( strpos($str, NULL) );
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var_dump( strpos($str, "0") );
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echo "\n-- simple and complex syntax strings --\n";
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$needle = 'world';
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/* Simple syntax */
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var_dump( strpos("Hello, world", "$needle") ); // works
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var_dump( strpos("Hello, world'S", "$needle'S") ); // works
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var_dump( strpos("Hello, worldS", "$needleS") ); // won't work
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/* String with curly braces, complex syntax */
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var_dump( strpos("Hello, worldS", "${needle}S") ); // works
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var_dump( strpos("Hello, worldS", "{$needle}S") ); // works
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echo "\n-- complex strings containing other than 7-bit chars --\n";
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$str = chr(0).chr(128).chr(129).chr(234).chr(235).chr(254).chr(255);
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echo "-- Positions of some chars in the string '$str' are as follows --\n";
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echo chr(128)." => ";
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var_dump( strpos($str, chr(128)) );
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echo chr(255)." => ";
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var_dump( strpos($str, chr(255), 3) );
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echo chr(256)." => ";
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var_dump( strpos($str, chr(256)) );
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echo "\n*** Testing error conditions ***";
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var_dump( strpos($string, "") );
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var_dump( strpos() ); // zero argument
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var_dump( strpos("") ); // null argument
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var_dump( strpos($string) ); // without "needle"
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var_dump( strpos("a", "b", "c", "d") ); // args > expected
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var_dump( strpos($string, "test", strlen($string)+1) ); // offset > strlen()
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var_dump( strpos($string, "test", -1) ); // offset < 0
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var_dump( strpos(NULL, "") );
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echo "\nDone";
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fclose($resource1);
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closedir($resource2);
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?>
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--EXPECTF--
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*** Testing basic functionality of strpos() ***
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int(0)
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int(5)
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int(5)
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int(3)
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int(10)
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int(2)
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bool(false)
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bool(false)
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bool(false)
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bool(false)
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bool(false)
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int(1)
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*** Testing stropos() to find various needles and a long string ***
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Position of 'Hello world' is => int(0)
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Position of 'WORLD' is => bool(false)
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Position of ' ' is => int(46)
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Position of ' ' is => int(46)
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Position of ' 0' is => int(58)
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Position of 'abcd' is => int(48)
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Position of 'xyz' is => int(54)
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Position of 'octal' is => int(61)
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Position of '-3' is => int(19)
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Position of '-3' is => bool(false)
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Position of '-3.344' is => int(19)
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Position of '-3.344' is => bool(false)
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Position of '' is => int(46)
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Position of 'NULL' is => int(31)
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Position of '0' is => int(12)
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Position of '0' is => int(46)
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Position of '1' is => bool(false)
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Position of 'TRUE' is => int(36)
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Position of '1' is => int(13)
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Position of '1' is => bool(false)
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Position of '' is => int(46)
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Position of 'FALSE' is => int(41)
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Position of ' ' is => int(5)
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Position of ' ' is => int(26)
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Position of 'b' is => int(49)
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Position of '\n' is => bool(false)
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Position of '
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' is => int(66)
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Position of '12' is => int(13)
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Position of '12twelve' is => bool(false)
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Position of 'Hello world,012033 -3.3445 NULL TRUE FALSE abcd\xxyz 0 octal
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abcd$:Hello world' is => int(0)
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*** Testing strpos() with possible variations in offset ***
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Position of 'Hello' with offset '1' is => int(74)
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Position of 'Hello' with offset 'string' is => int(0)
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Position of 'Hello' with offset '' is => int(0)
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Position of 'Hello' with offset '' is => int(0)
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Position of 'Hello' with offset '12string' is => int(74)
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Position of 'Hello' with offset '0' is => int(0)
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Position of 'Hello' with offset '1' is => int(74)
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Position of 'Hello' with offset '' is => int(0)
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Position of 'Hello' with offset '' is => int(0)
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Position of 'Hello' with offset 'string12' is => int(0)
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Position of 'Hello' with offset '12.3string' is => int(74)
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*** Testing Miscelleneous input data ***
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-- Passing objects as string and needle --
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int(7)
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-- Passing an array as string and needle --
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Notice: Array to string conversion in %s on line %d
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bool(false)
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int(5)
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int(12)
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-- Passing Resources as string and needle --
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%s
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%s
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-- Posiibilities with null --
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bool(false)
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bool(false)
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bool(false)
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int(2)
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-- A longer and heredoc string --
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int(0)
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int(73)
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int(73)
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int(728)
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-- A heredoc null string --
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bool(false)
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bool(false)
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bool(false)
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-- simple and complex syntax strings --
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int(7)
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int(7)
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Notice: Undefined variable: needleS in %s on line %d
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Warning: strpos(): Empty delimiter in %s on line %d
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bool(false)
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int(7)
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int(7)
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-- complex strings containing other than 7-bit chars --
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-- Positions of some chars in the string ' <00><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>' are as follows --
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<EFBFBD> => int(1)
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<EFBFBD> => int(6)
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=> int(0)
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*** Testing error conditions ***
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Warning: strpos(): Empty delimiter in %s on line %d
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bool(false)
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Warning: Wrong parameter count for strpos() in %s on line %d
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NULL
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Warning: Wrong parameter count for strpos() in %s on line %d
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NULL
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Warning: Wrong parameter count for strpos() in %s on line %d
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NULL
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Warning: Wrong parameter count for strpos() in %s on line %d
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NULL
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Warning: strpos(): Offset not contained in string in %s on line %d
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bool(false)
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Warning: strpos(): Offset not contained in string in %s on line %d
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bool(false)
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Warning: strpos(): Empty delimiter in %s on line %d
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bool(false)
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Done
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