stripos

Description

Returns the numeric position of the first occurrence of needle in the haystack string. Unlike strpos(), stripos() is case-insensitive.

Note that the needle may be a string of one or more characters.

If needle is not found, stripos() will return boolean FALSE.

Example 1. stripos() examples <?php $findme    = 'a'; $mystring1 = 'xyz'; $mystring2 = 'ABC'; $pos1 = stripos($mystring1, $findme); $pos2 = stripos($mystring2, $findme); // Nope, 'a' is certainly not in 'xyz' if ($pos1 === false) {     echo "The string '$findme' was not found in the string '$mystring1'"; } // Note our use of ===.  Simply == would not work as expected // because the position of 'a' is the 0th (first) character. if ($pos2 !== false) {     echo "We found '$findme' in '$mystring2' at position $pos2"; } ?>

If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.

The optional offset parameter allows you to specify which character in haystack to start searching. The position returned is still relative to the the beginning of haystack.

See also strpos(), strrpos(), strrchr(), substr(), stristr(), strstr(), strripos() and str_ireplace().