InputValidator::is_numeric_array_key( mixed $input )
Verify whether a received input parameter is usable as an integer array key.
Parameters
- $input
-
(Required) Input parameter to verify.
Return
(bool)
Source
File: wp-includes/Requests/src/Utility/InputValidator.php
public static function is_numeric_array_key($input) {
if (is_int($input)) {
return true;
}
if (!is_string($input)) {
return false;
}
return (bool) preg_match('`^-?[0-9]+$`', $input);
}