ReflectionProperty::setAccessible

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

ReflectionProperty::setAccessible — Set property accessibility

说明

public ReflectionProperty::setAccessible(bool $accessible): void

Enables access to a protected or private property via the ReflectionProperty::getValue() and ReflectionProperty::setValue() methods.

注意: As of PHP 8.1.0, calling this method has no effect; all properties are accessible by default.

参数

accessible: true to allow accessibility, or false.

返回值

没有返回值。

范例

示例 #1 Simple Class definition


<?php
class MyClass
{
    private $foo = 'bar';
}

$property = new ReflectionProperty("MyClass", "foo");
$property->setAccessible(true);

$obj = new MyClass();
echo $property->getValue($obj);
echo $obj->foo;
?>

以上例程的输出类似于：

bar
Fatal error: Uncaught Error: Cannot access private property MyClass::$foo in /in/WJqTv:12

参见

ReflectionProperty::isPrivate() - Checks if property is private
ReflectionProperty::isProtected() - Checks if property is protected

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User Contributed Notes 3 notes

down

matthieu at mnapoli dot fr ¶

9 years ago


Note that the property will only become accessible using the ReflectionProperty class. The property is still private or protected in the class instances.

<?php
class MyClass {
     private $myProperty = true;
}

$class = new ReflectionClass("MyClass");
$property = $class->getProperty("myProperty");
$property->setAccessible(true);

$obj = new MyClass();
echo $property->getValue($obj); // Works
echo $obj->myProperty; // Doesn't work (error)
?>

down

Rob McVey ¶

12 years ago


If you are using < PHP 5.3 and need to get the private attributes and values, you can use this method:


This is what you are doing:


<?php

$obj_with_privates = new MyObject();

$class     = get_class($obj_with_privates);

$vars     = get_object_vars($obj_with_privates);

//will not show private attributes

print_r($vars);


$reflection = new ReflectionClass( $class );

$attributes = $reflection->getProperties();

//still no private access!

print_r($attributes);

?>



This is what you should do:


<?php

$obj_with_privates = new MyObject();


$class         = get_class( $obj_with_privates );

$reflection = new ReflectionClass( $class );

$abstract    = $reflection->getMethods( ReflectionMethod::IS_ABSTRACT );

$priv_attr  = $reflection->getProperties( ReflectionProperty::IS_PRIVATE );

$privates   = array();

$parent     = get_parent_class( $class );

$child         = $class;

$constructor = $reflection->getConstructor();


//If the class has abstract methods you need to implement them

$abstr_methods = "";

if(sizeof($abstr_methods))

{

    foreach($abstract as $method)

    {

        $mname = $method->name;

        $abstr_methods .= "public function $mname(){return false;}";

    }

}


//Convert private attributes to public attributes

if(sizeof($priv_attr))

{

    $parseable = unserialize(str_replace("\0$class\0", "\0*\0", serialize($obj)));

    foreach($priv_attr as $attribute)

    {

        $aname = $attribute->name;

        $privates[$aname] = $parseable->$aname;

    }

}

            


$temp_child_class = "temp" . str_replace("_", "", "$class");


//You can gain access to protected attributes by extending the target class

$class_def = "

class $temp_child_class extends $class{

    $constructor

    public function reflect_getmyvars(){

        return get_object_vars(\$this);

    }

    $abstr_methods

}

";


//place class definition in memory

eval($class_def);


//generate object from dynamic class

$tcobj =@ new $temp_child_class;    

//call the method we added to the object (to access protected vars)

$vars = $tcobj->reflect_getmyvars();


$attribs = array_merge($vars, $privates);


//will now show private attributes

print_r($attribs);

?>

down

Yzmir Ramirez ¶

11 years ago


Have you tried:

<?php

echo "PHP Version: ".phpversion()."\n";

class Foo 
{
    private   $bar  = "private";
    protected $bar2 = "protected";
    public    $bar3 = "public";
}

$obj = new Foo;

$arr = (array)$obj;

print_r($arr);
?>

Output:

PHP Version: 5.2.12
Array
(
    [Foobar] => private
    [*bar2] => protected
    [bar3] => public
)

PHP Version: 5.1.6
Array
(
    [Foobar] => private
    [*bar2] => protected
    [bar3] => public
)

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官方地址：https://www.php.net/manual/en/reflectionproperty.setaccessible.php

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PHP官方手册 - 互联网笔记

ReflectionProperty::setAccessible

说明

参数

返回值

范例

参见

User Contributed Notes 3 notes