ReflectionFunctionAbstract::getNumberOfParameters

(PHP 5 >= 5.0.3)

ReflectionFunctionAbstract::getNumberOfParameters — Gets number of parameters

说明

public int ReflectionFunctionAbstract::getNumberOfParameters ( void )

Get the number of parameters that a function defines, both optional and required.

Warning

本函数还未编写文档，仅有参数列表。

参数

此函数没有参数。

返回值

The number of parameters.

参见

ReflectionFunctionAbstract::getNumberOfRequiredParameters() - Gets number of required parameters
func_num_args() - Returns the number of arguments passed to the function

PHP手册 - N: Gets number of parameters

用户评论:

Robert Pitt ( LitePHP ) (11-Apr-2010 11:42)

Working on a new MVC Application Framework i use this method to check how many arguments are required before calling the sub method! Example <?php $this->method_args_count = $this->CReflection ->getMethod($Route->getMethod()) ->getNumberOfParameters(); //Maybe be 5 but if uri is /controller/method/single_param/ we only of 1 $this->params = $Route->getParams(); //0 in some cases if($this->method_args_count > count($this->params)) { $this->difference = ($this->method_args_count - count($this->params)); for($i=0;$i<=$this->difference;$i++) { $this->params[] = false; } } //Call the method with correct amount of params // but as false for params that have not been passed! call_user_func_array(array(new $this->obj,$Route->getMethod()),$this->params); ?>