PHP 7.0.6 Released

    ReflectionFunctionAbstract::getNumberOfParameters

    (PHP 5 >= 5.0.3, PHP 7)

    ReflectionFunctionAbstract::getNumberOfParameters — Gets number of parameters

    Description

    public int ReflectionFunctionAbstract::getNumberOfParameters ( void )

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

    Warning

    This function is currently not documented; only its argument list is available.

    Parameters

    This function has no parameters.

    Return Values

    The number of parameters.

    See Also

    User Contributed Notes

    Robert Pitt ( LitePHP )
    6 years ago
    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);
    ?>
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