strstr Find first occurrence of a string stringstrstr stringhaystack stringneedle Returns part of haystack string from the first occurrence of needle to the end of haystack. 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. This function is case-sensitive. For case-insensitive searches, use stristr. ]]> If you only want to determine if a particular needle occurs within haystack, use the faster and less memory intensive function strpos instead. See also ereg, preg_match, strchr, stristr, strpos, strrchr, and substr.