PHP: Hypertext Preprocessor (original) (raw)
method_exists
(PHP 4, PHP 5, PHP 7, PHP 8)
method_exists — Checks if the class method exists
Description
Parameters
object_or_class
An object instance or a class name
method
The method name
Return Values
Returns [true](reserved.constants.php#constant.true) if the method given by method has been defined for the given object_or_class, [false](reserved.constants.php#constant.false) otherwise.
Changelog
| Version | Description |
|---|---|
| 7.4.0 | Class checks against inherited private methods now return false. |
Examples
Example #1 method_exists() example
<?php $directory = new Directory('.'); var_dump(method_exists($directory,'read')); ?>
The above example will output:
Example #2 Static method_exists() example
<?php var_dump(method_exists('Directory','read')); ?>
The above example will output:
Notes
Note:
Using this function will use any registeredautoloaders if the class is not already known.
Note: The method_exists() function cannot detect methods that are magically accessible using the__call magic method.
See Also
- function_exists() - Return true if the given function has been defined
- is_callable() - Verify that a value can be called as a function from the current scope
- class_exists() - Checks if the class has been defined
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