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)

Description

Search for value in haystack .

Returns

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() , values() , zero_type()