strpos Find the position of the first occurrence of a substring in a string &reftitle.description; intfalsestrpos stringhaystack stringneedle intoffset0 Find the numeric position of the first occurrence of needle in the haystack string. &reftitle.parameters; haystack The string to search in. needle The string to search for. &strings.parameter.needle.non-string; offset If specified, search will start this number of characters counted from the beginning of the string. If the offset is negative, the search will start this number of characters counted from the end of the string. &reftitle.returnvalues; Returns the position of where the needle exists relative to the beginning of the haystack string (independent of offset). Also note that string positions start at 0, and not 1. Returns &false; if the needle was not found. &return.falseproblem; &reftitle.changelog; &Version; &Description; &strings.changelog.needle-empty; 8.0.0 Passing an &integer; as needle is no longer supported. 7.3.0 Passing an &integer; as needle has been deprecated. 7.1.0 Support for negative offsets has been added. &reftitle.examples; ]]> ]]> ]]> &reftitle.notes; ¬e.bin-safe; &reftitle.seealso; stripos str_contains str_ends_with str_starts_with strrpos strripos strstr strpbrk substr preg_match