Php/docs/reflectionparameter.construct
ReflectionParameter::__construct
(PHP 5, PHP 7)
ReflectionParameter::__construct — Construct
Parameters
function- The function to reflect parameters from.
parameter- Either an int specifying the position of the parameter (starting with zero), or a the parameter name as string.
Return Values
No value is returned.
Examples
Example #1 Using the ReflectionParameter class
<?phpfunction foo($a, $b, $c) { }function bar(Exception $a, &$b, $c) { }function baz(ReflectionFunction $a, $b = 1, $c = null) { }function abc() { }$reflect = new ReflectionFunction('foo');echo $reflect;foreach ($reflect->getParameters() as $i => $param) { printf( "-- Parameter #%d: %s {\n". " Class: %s\n". " Allows NULL: %s\n". " Passed to by reference: %s\n". " Is optional?: %s\n". "}\n", $i, // $param->getPosition() can be used from PHP 5.2.3 $param->getName(), var_export($param->getClass(), 1), var_export($param->allowsNull(), 1), var_export($param->isPassedByReference(), 1), $param->isOptional() ? 'yes' : 'no' );}?>
The above example will output something similar to:
Function [ <user> function foo ] {
@@ /Users/philip/cvs/phpdoc/a 2 - 2
- Parameters [3] {
Parameter #0 [ <required> $a ]
Parameter #1 [ <required> $b ]
Parameter #2 [ <required> $c ]
}
}
-- Parameter #0: a {
Class: NULL
Allows NULL: true
Passed to by reference: false
Is optional?: no
}
-- Parameter #1: b {
Class: NULL
Allows NULL: true
Passed to by reference: false
Is optional?: no
}
-- Parameter #2: c {
Class: NULL
Allows NULL: true
Passed to by reference: false
Is optional?: no
}
See Also
- ReflectionFunctionAbstract::getParameters() - Gets parameters
- ReflectionFunction::__construct() - Constructs a ReflectionFunction object
- ReflectionMethod::__construct() - Constructs a ReflectionMethod
- Constructors
