strcoll Locale based string comparison &reftitle.description; intstrcoll stringstring1 stringstring2 Note that this comparison is case sensitive, and unlike strcmp this function is not binary safe. strcoll uses the current locale for doing the comparisons. If the current locale is C or POSIX, this function is equivalent to strcmp. &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.seealso; preg_match strcmp strcasecmp substr stristr strncasecmp strncmp strstr setlocale