method_exists

(PHP 4, PHP 5, PHP 7)

method_exists — 锟斤拷锟斤拷锟侥凤拷锟斤拷锟角凤拷锟斤拷锟�

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

锟斤拷锟斤拷锟侥凤拷锟斤拷锟角凤拷锟斤拷锟斤拷锟街革拷锟斤拷锟� object锟叫★拷

锟斤拷锟� method_name 锟斤拷指锟侥凤拷锟斤拷锟斤拷 object 锟斤拷指锟侥讹拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟藉，锟津返伙拷 TRUE锟斤拷锟斤拷锟津返伙拷 FALSE锟斤拷

Note:
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Example #1 method_exists() 锟斤拷锟斤拷


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

锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�

bool(true)

Example #2 Static method_exists() 锟斤拷锟斤拷


<?php
var_dump(method_exists('Directory','read'));
?>

锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�

bool(true)