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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $a['common'] = 123; $a['a1'] = array( 'common' => &$a['common'], 'elt1' => 11, 'elt2' => 12 ); $a['a2'] = array( 'common' => &$a['common'], 'elt1' => 21, 'elt2' => 22 ); $as = serialize($a); $a2 = unserialize($a); var_dump($a['common']); var_dump($a['a1']['common']); var_dump($a['a2']['common']);
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: unserialize() expects parameter 1 to be string, array given in /in/9iM2a on line 21 int(123) int(123) int(123)
Output for 4.3.10 - 4.4.9, 5.0.3 - 5.1.6
Notice: unserialize(): Argument is not a string in /in/9iM2a on line 21 int(123) int(123) int(123)
Output for 4.3.2 - 4.3.9, 5.0.0 - 5.0.2
Notice: unserialize(): Argument is not an string in /in/9iM2a on line 21 int(123) int(123) int(123)
Output for 4.3.0 - 4.3.1
Notice: unserialize() [http://www.php.net/function.unserialize]: Argument is not an string in /in/9iM2a on line 21 int(123) int(123) int(123)