strcasecmp Binary safe case-insensitive string comparison &reftitle.description; intstrcasecmp stringstring1 stringstring2 Binary safe case-insensitive string comparison. &reftitle.parameters; string1 The first string string2 The second string &reftitle.returnvalues; Returns < 0 if string1 is less than string2; > 0 if string1 is greater than string2, and 0 if they are equal. &reftitle.examples; ]]> &reftitle.seealso; strcmp preg_match substr_compare strncasecmp stristr substr