How to check if a class method exists in php

In PHP, you can use the method_exists() function to check whether a class method exists. This function can check whether a class method exists in the specified object. The syntax is "method_exists($object,$method_name)"; if Returns true if it exists, otherwise returns false.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php check whether the class method exists You can use the method_exists() function.

method_exists - Check whether the method of the class exists, check whether the method of the class exists in the specified object.

Syntax:

method_exists($object,$method_name)

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;));
?>

Output result:

bool(true)

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