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run code in 150+ php & hhvm versions
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<?php $array[] = array('first'=>'jake','last'=>'quattrocchi'); $array[] = array('first'=>'david'); foreach($array as $key=>&$value){ $key[$value]['first'] == 'adfgadgadfg'; } var_dump($array);
based on pdVvL
Output for 5.2.1 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> &array(1) { ["first"]=> string(5) "david" } }
Output for 5.0.0 - 5.2.0
array(2) { [0]=> &array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> &array(1) { ["first"]=> string(5) "david" } }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/OX5he on line 6
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 '$' in /in/OX5he on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/OX5he on line 6
Process exited with code 255.