strripos() Finds the position of the last occurrence of a string inside another string (case-insensitive) strrpos() Finds the position of the last occurrence of a string inside another string (case-sensitive) strspn() Returns the number of characters found in a string that contains only charact...
trigger_error('The start position cannot exceed initial string length.',E_USER_WARNING); returnfalse; } // We are comparing the first n-characters of each string, so let's use the PHP function to do it if ($offset==0&&is_int($length) &&$case_insensitivity===true) { returnstrncasecmp...
* Checks if the given array contains the specified key. * This method enhances the `array_key_exists()` function by supporting case-insensitive * key comparison. *@paramstring $key the key to check *@paramarray $array the array with keys to check *@paramboolean $caseSensitive whether the ...
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startsWith($prefix, $caseInsensitive = false) - LIKE ?%endsWith($suffix, $caseInsensitive = false) - LIKE %?contains($string, $caseInsensitive = false) - LIKE %?%exists($db->select(...)->where(...) - EXISTS (SELECT ... FROM ... WHERE ...)...
Use a regular expression to do a case-insensitive search for "w3schools" in a string: <?php $str ="Visit W3Schools"; $pattern ="/w3schools/i"; echopreg_match($pattern, $str); ?> Try it Yourself » Definition and Usage Thepreg_match()function returns whether a match was found in...
zend_string_equals_literal(zstr, cstr): Checks equality of “zend_string” with a given C string literal. zend_string_equals_literal_ci(zstr, cstr): The case insensitive variant of zend_string_equals_literal(). The compete zend_string API is defined inZend/zend_string.h. ...
Fixed array key as hash to string (case insensitive) comparison typo for the second operand buffer size (albeit unused for now). XML: Fixed bug GH-13517 (Multiple test failures when building with --with-expat).Version 8.3.3 15 Feb 2024 Core: Fixed timer leak in zend-max-execution-...
Discover multiple methods for checking if a substring exists within a PHP string. Explore efficient techniques for substring detection now!
return"Some String"; fiddle.php <?php $s= require_once('fiddle2.php'); echo"\n".$s; $s= require_once('fiddle2.php'); echo"\n".$s; /* output Some String 1 */ The second timerequire_onceoccurs,it returns 1 because the file has already been included. ...