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Does PHP judgment method exist?

Guanhui

Jun 04, 2020 pm 06:03 PM

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Does PHP judgment method exist?

Does PHP determine whether the method exists?

In PHP, you can use the "method_exists()" function to determine whether a method exists. This function is used to check whether a class method exists. Its syntax is "method_exists($object,$name)", The parameter $object represents the instance object, and the parameter $name represents the checking method.

Syntax and description

method_exists ( mixed $object , string $method_name ) : bool

Check whether the method of the class exists in the specified object.

Parameters

object

Object example or class name.

method_name

Method name.

Return value

If the method pointed by method_name has been defined in the object class pointed by object, then return TRUE, otherwise return FALSE.

Example

<?php
$directory = new Directory(&#39;.&#39;);
var_dump(method_exists($directory,&#39;read&#39;));
?>

The above routine will output:

bool(true)

Recommended tutorial: "PHP Tutorial》

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