用来检查一个对象的一个方法是否存在: if (method_exists($object, 'SomeMethod')) { $object->SomeMethod($this, TRUE)...method_exists 正如这个函数名一样,只是对我们提供的类或对象检查是否有我们所期望的方法,如果有,就返回TRUE,如果没有,就返回FALSE,这里并没有考虑可见性的问题。... (is_callable(array($object, 'SomeMethod'))) { $object->SomeMethod($this, TRUE); } 下面是一个例子,用来说明 method_exists...像 method_exists一样,is_callable 可以触发类的自动加载。...如果一个对象有魔术方法 __call,在进行方法判断的时候 method_exists 会返回FALSE , 而is_callable 会返回TRUE。
1.method_exists — 检查类的方法是否存在 说明 method_exists ( mixed object , string method_name ) : bool 检查类的方法是否存在于指定的
php教程 method_exists 检测类中是否包括函数?或许有些人不是很明白其中道理,下面做如下详细分析。...method_exists() 函数的语法如下:bool method_exists ( object object, string method_name) method_exists() 函数的作用是检查类的方法是否存在...public function xx(){ echo ‘xx’; } public function yy() { echo ‘yy’; } } $obj = new a(); var_dump(method_exists...($obj, ‘xx’)); var_dump(method_exists($obj, ‘xx’)); var_dump(method_exists($obj, ‘xx’)); 测试结果都为true class
下面我们一起来看在php 中PHP类和对象函数这 php interface_exists、class_exists、method_exists和property_exists详解,希望文章对各位同学会有所帮助...1. interface_exists、class_exists、method_exists和property_exists: 顾名思义,从以上几个函数的命名便可以猜出几分他们的功能。...bool method_exists (mixed $object , string $method_name) 判断指定类或者对象中是否含有指定的成员函数。
function bootProvider(ServiceProvider $provider) { if (method_exists($provider, 'boot')) {..., 'testProtectedMethodExists'); $object_method_exists3 = method_exists($test_class_exists,...'testPublicMethodExists'); $classname_method_exists1 = method_exists(TestClassExists::class,...'testPrivateMethodExists'); $classname_method_exists2 = method_exists(TestClassExists::class..., 'testProtectedMethodExists'); $classname_method_exists3 = method_exists(TestClassExists::class
interface_exists();//检查接口是否已定义 bool interface_exists ( string $interface_name [, bool $autoload ] ) 4、method_exists...() ;// 检查类的方法是否存在 bool method_exists ( object $object , string $method_name ) 5、property_exists() ;检查对象或类是否具有该属性
自我认为,PHP不允许名函数存在的重要原因是function_exists、 method_exists、is_callable这些API的存在。...$method; if (method_exists($this, $method)) { call_user_func_array([$this, $method], $args...$method; $class = get_called_class(); if (method_exists($class, $method)) { call_user_func_array
methodName = 'action' . str_replace(' ', '', ucwords(implode(' ', explode('-', $id)))); if (method_exists...methodName = 'action' . str_replace(' ', '', ucwords(implode(' ', explode('-', $id)))); if (method_exists...$id; if (method_exists($this, $methodName)) { $method = new \ReflectionMethod
public function withGlobalScope($identifier, $scope) { $this->scopes[$identifier] = $scope; if (method_exists...(class_uses_recursive($class) as $trait) { $method = 'boot' . class_basename($trait); if (method_exists...booted)) { forward_static_call([$class, $method]); $booted[] = $method; } if (method_exists
$beforeMethod = "before".ucfirst(__FUNCTION__); $args = func_get_args(); if(method_exists...database echo "connecting\n"; $afterMethod = "after".ucfirst(__FUNCTION__); if(method_exists
presentation->Close(); 12 $ppt->Quit(); 13 } catch (\Exception $e) { 14 if (method_exists...$e->__toString()); 15 if (method_exists($excel, "Quit")){ 16 $excel->Quit...ActiveDocument->Close(); 29 $word->Quit(); 30 } catch (\Exception $e) { 31 if (method_exists
Driver'; if (method_exists($this, $driverMethod)) { return $this->{$driverMethod...null); $guard = new SessionGuard($name, $provider, $this->app['session.store']); if (method_exists..., 'setCookieJar')) { $guard->setCookieJar($this->app['cookie']); } if (method_exists...'setDispatcher')) { $guard->setDispatcher($this->app['events']); } if (method_exists
resolveClassMethodDependencies( $route->parametersWithoutNulls(), $controller, $method ); if (method_exists...method_exists($instance, $method)) { return $parameters; } return $this...resolveClassMethodDependencies( $route->parametersWithoutNulls(), $controller, $method ); if (method_exists
BusDispatcherContract::class)->dispatchNow(new BroadcastEvent(clone $event)); } $queue = null; if (method_exists...BroadcastEvent 实例的 handle 方法将其进行广播: public function handle(Broadcaster $broadcaster) { $name = method_exists...只是底层支持了立即广播事件消息,上层业务是不支持的,所以回到 Illuminate\Broadcasting\BroadcastManager 的 queue 方法,我们继续往下看: $queue = null; if (method_exists
'index_page'", site_url()); } $self->template_data["is_admin"] = $self->is_admin(); if(method_exists...class_exists($class, FALSE) OR $method[0] === '_' OR method_exists('CI_Controller', $method)) {...$e404 = TRUE; } elseif (method_exists($class, '_remap')) { $params = array($method, array_slice...php public function _remap($method, $params=[]) { $method = "handle_{$method}"; if (method_exists...($this, $method)) { if(method_exists($this, "before_handler")) { call_user_func([
return Response */ public function render($request, Throwable $e): Response { if (method_exists
function__construct(Order $order, $func){ $this->order= $order; if(method_exists...function__construct(Order $order, $func){ $this->order= $order; if(method_exists
(is_object($params[1]) && method_exists($params[1], '__toString')) ) { trigger_error('array_column...(is_object($params[2]) && method_exists($params[2], '__toString')) ) { trigger_error('array_column
method_exists($object, $method)){ return; } $reflection = new ReflectionMethod(get_class($object
method_exists('Test',$_GET['action'])){ echo "404"; }else{
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