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run code in 200+ php & hhvm versions
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<?php $arr = array('1','2',3); foreach($arr as &$value){ } foreach($arr as $value){ var_dump($value); }
based on hlJda
Output for 5.0.0 - 7.2.0
string(1) "1" string(1) "2" string(1) "2"
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/l8EvV on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/l8EvV on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/l8EvV on line 4
Process exited with code 255.