Php/docs/function.method-exists
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method_exists
(PHP 4, PHP 5, PHP 7)
method_exists — Checks if the class method exists
Description
method_exists
( string|object $object
, string $method_name
) : bool
Checks if the class method exists in the given
object.
Parameters
object- An object instance or a class name
method_name- The method name
Return Values
Returns TRUE if the method given by method_name
has been defined for the given object, FALSE
otherwise.
Notes
Note:
Using this function will use any registered autoloaders if the class is not already known.
Examples
Example #1 method_exists() example
<?php$directory = new Directory('.');var_dump(method_exists($directory,'read'));?>
The above example will output:
bool(true)
Example #2 Static method_exists() example
<?phpvar_dump(method_exists('Directory','read'));?>
The above example will output:
bool(true)
See Also
- function_exists() - Return TRUE if the given function has been defined
- is_callable() - Verify that the contents of a variable can be called as a function
- class_exists() - Checks if the class has been defined
