Method has_value()

Method has_value

int has_value(string haystack, string value)
int has_value(string haystack, int value)
int has_value(array|mapping|object|program haystack, mixed value)


Search for value in haystack.


Returns 1 if value is in the value domain of haystack, or 0 (zero) if not found.

This function is in all cases except when both arguments are strings equivalent to (but sometimes faster than):

search(values(haystack), value) != -1

If both arguments are strings, has_value() is equivalent to:

search(haystack, value) != -1
See also

has_index(), indices(), search(), has_prefix(), has_suffix(), values(), zero_type()