<?php
class A
{
private $b = 'foo';
}
class B extends A
{
public function __sleep()
{
return array('b');
}
}
class C extends A implements Serializable
{
public function unserialize($serialized) { /*... */ }
public function serialize()
{
$b = new ReflectionProperty('A', 'b');
$b->setAccessible(true);
return serialize(array('b' => $b->getValue($this)));
}
}
var_dump(serialize(new A()));
var_dump(serialize(new B()));
var_dump(serialize(new C()));
var_dump((array) new C());
Deprecated: C implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/Mjpp4 on line 16
string(33) "O:1:"A":1:{s:4:" A b";s:3:"foo";}"
Warning: serialize(): "b" returned as member variable from __sleep() but does not exist in /in/Mjpp4 on line 28
string(12) "O:1:"B":0:{}"
string(37) "C:1:"C":24:{a:1:{s:1:"b";s:3:"foo";}}"
array(1) {
[" A b"]=>
string(3) "foo"
}
Output for 8.0.0 - 8.0.30
string(33) "O:1:"A":1:{s:4:" A b";s:3:"foo";}"
Warning: serialize(): "b" returned as member variable from __sleep() but does not exist in /in/Mjpp4 on line 28
string(12) "O:1:"B":0:{}"
string(37) "C:1:"C":24:{a:1:{s:1:"b";s:3:"foo";}}"
array(1) {
[" A b"]=>
string(3) "foo"
}
string(33) "O:1:"A":1:{s:4:" A b";s:3:"foo";}"
Notice: serialize(): "b" returned as member variable from __sleep() but does not exist in /in/Mjpp4 on line 28
string(22) "O:1:"B":1:{s:1:"b";N;}"
string(37) "C:1:"C":24:{a:1:{s:1:"b";s:3:"foo";}}"
array(1) {
[" A b"]=>
string(3) "foo"
}
Output for 7.3.32 - 7.3.33, 7.4.26
string(33) "O:1:"A":1:{s:4:" A b";s:3:"foo";}"
string(22) "O:1:"B":1:{s:1:"b";N;}"
string(37) "C:1:"C":24:{a:1:{s:1:"b";s:3:"foo";}}"
array(1) {
[" A b"]=>
string(3) "foo"
}
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
string(33) "O:1:"A":1:{s:4:" A b";s:3:"foo";}"
Notice: serialize(): "b" returned as member variable from __sleep() but does not exist in /in/Mjpp4 on line 28
string(22) "O:1:"B":1:{s:1:"b";N;}"
Fatal error: Call to undefined method ReflectionProperty::setAccessible() in /in/Mjpp4 on line 22
Process exited with code 255.
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/Mjpp4 on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/Mjpp4 on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Mjpp4 on line 5
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Mjpp4 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Mjpp4 on line 5
Process exited with code 255.