method_exists

Function • Params and return types changed in PHP 8.0

Checks if the class method exists.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

method_exists Function synopsis

method_exists($object_or_class, string $method): bool

Parameters

$object_or_class

An object instance or a class name

$method

Typestring

The method name

Return value

Typebool

Returns true if the method given by $method has been defined for the given $object_or_class, false otherwise.

Changes to the method_exists Function

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $object to $object_or_class
  • Parameter type added for parameter #2 ($method): string
- method_exists($object, $method)
+ method_exists($object_or_class, string $method): bool

method_exists Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes