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run code in 150+ php & hhvm versions
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<?php $a = array(1,2); foreach ($a as &$e) { echo $e; $e = 999; reset($a); } var_dump($a);
Output for 5.2.2 - 7.1.0
12array(2) { [0]=> int(999) [1]=> &int(999) }
Output for 5.0.0 - 5.2.1
12array(2) { [0]=> int(999) [1]=> int(2) }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/UUK09 on line 3
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 '$' in /in/UUK09 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/UUK09 on line 3
Process exited with code 255.