技术问答PHP鐨刴ethod_exists鍑芥暟鎬庝箞浣跨敤 - 扬州沐宇科技

method_exists鍑芥暟鐢ㄤ簬妫€鏌ヤ竴涓璞℃垨绫绘槸鍚﹀叿鏈夋寚瀹氱殑鏂规硶銆傚畠鐨勪娇鐢ㄦ柟寮忓涓嬶細

bool method_exists ( mixed $object , string $method_name )

鍙傛暟璇存槑锛?/p>

$object锛氳妫€鏌ョ殑瀵硅薄鎴栫被鍚嶃€?/p>
$method_name锛氳妫€鏌ョ殑鏂规硶鍚嶃€?/p>

杩斿洖鍊硷細

濡傛灉瀵硅薄鎴栫被涓瓨鍦ㄦ寚瀹氱殑鏂规硶锛屽垯杩斿洖 true锛涘惁鍒欒繑鍥?false銆?/li>

绀轰緥浠ｇ爜锛?/p>

class MyClass {
public function myMethod() {
echo "Hello, World!";
}
}
$object = new MyClass();
// 妫€鏌ュ璞℃槸鍚﹀叿鏈夋寚瀹氱殑鏂规硶
if (method_exists($object, 'myMethod')) {
echo "瀵硅薄鍏锋湁 myMethod 鏂规硶";
} else {
echo "瀵硅薄娌℃湁 myMethod 鏂规硶";
}
// 妫€鏌ョ被鏄惁鍏锋湁鎸囧畾鐨勬柟娉?/span>
if (method_exists('MyClass', 'myMethod')) {
echo "绫诲叿鏈?myMethod 鏂规硶";
} else {
echo "绫绘病鏈?myMethod 鏂规硶";
}

杈撳嚭缁撴灉锛?/p>

瀵硅薄鍏锋湁 myMethod 鏂规硶
绫诲叿鏈?myMethod 鏂规硶