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PHP Functions
Function: stristr (PHP 3 >= 3.0.6, PHP 4, PHP 5) stristr -- Case-insensitive strstr()Descriptionstring stristr ( string haystack, string needle )Returns all of haystack from the first occurrence of needle to the end. needle and haystack are examined in a case-insensitive manner. If needle is not found, returns FALSE . If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
Example 1. stristr() example <?php $email = 'USER@EXAMPLE.com'; echo stristr($email, 'e'); // outputs ER@EXAMPLE.com ?>
Example 2. Testing if a string is found or not <?php $string = 'Hello World!'; if(stristr($string, 'earth') === FALSE) { echo '"earth" not found in string'; } // outputs: "earth" not found in string ?>
Example 3. Using a non "string" needle <?php $string = 'APPLE'; echo stristr($string, 97); // 97 = lowercase a // outputs: APPLE ?> Note: This function is binary-safe. Related Function(s) |