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run code in 500+ PHP versions simultaneously
<?php class a{ public $n; public function __construct($n) { $this->n=$n; $this->N=&$this->n; } } class b{ public $n; public function __construct($n) { $this->n=$n; } } class c{ public function t($b){ $cb= clone $b; $cb->n='clone'; var_dump($cb->n,$b->n); } } $c=new c(); $a=new a('new'); $b=new b('new'); $n=&$b->n; //Class A specified reference when constructing, clone and modify the properties of the original object has no effect $c->t($a); //Class B specified external references, clone modify properties directly affect the original object properties $c->t($b);
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/NRTJZ on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/NRTJZ on line 4
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/NRTJZ on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34
string(5) "clone" string(5) "clone" string(5) "clone" string(5) "clone"
Output for 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Deprecated: Creation of dynamic property a::$N is deprecated in /in/NRTJZ on line 8 string(5) "clone" string(5) "clone" string(5) "clone" string(5) "clone"
preferences:
33.51 ms | 1154 KiB | 17 Q