method_exists() is a PHP function used to check whether a class method exists. Its syntax is as follows:
method_exists(mixed $object, string $method_name): bool
Parameter description:
$object: The object example or class name to be checked.
$method_name: The method name to be checked.
Return value:
If the method pointed to by $method_name has been defined in the object class pointed to by $object, then true is returned.
Otherwise return false.
Example usage:
class MyClass { public function myMethod() { // 方法实现 } } $obj = new MyClass(); var_dump(method_exists($obj, 'myMethod')); // 输出:bool(true) $anotherObj = new stdClass(); var_dump(method_exists($anotherObj, 'myMethod')); // 输出:bool(false)
In the above example, we first define a class named MyClass and define a method named myMethod in it. Then, we create an instance object $obj of MyClass and use the method_exists() function to check whether the myMethod method exists in the $obj object. Since the method is defined in the MyClass class, it returns true.
Next, we create a stdClass object $anotherObj and use the method_exists() function to check whether the myMethod method exists in the $anotherObj object. Since the myMethod method is not defined in the stdClass class, false is returned.
The above is the detailed content of method_exists detailed explanation. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function