ReflectionParameter::isDefaultValueConstant

(PHP 5 >= 5.4.6, PHP 7)

ReflectionParameter::isDefaultValueConstant — Returns whether the default value of this parameter is constant

Description

public bool ReflectionParameter::isDefaultValueConstant ( void )

Warning

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

Parameters

This function has no parameters.

Return Values

Returns TRUE if the default value is constant, FALSE if it is not or NULL on failure.

User Contributed Notes

kristianoye at gmail dot com

11 months ago


This method returns true only if the parameter's default value is set to a named constant.  e.g.

class Foo {
   const OPTION_MULTIGET = 1;

   //Method 1
   public function setGetOptions($opts=0);

   //Method 2
   public function setMultiGetOptions($opts=Foo::OPTION_MULTIGET);
}

Method 1's first ReflectionParameter will return isDefaultValueConstant() = false (0 is a "constant"/static value but not a named constant) and Method 2's will return isDefaultValueConsntant() = true.