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run code in 200+ php & hhvm versions
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<?php $var = array( 'a' => 'abc', 'b' => 'def', 'c' => 'ghi' ); foreach ($var as $key => &$val) { $val = $key . ':' . 'aaa'; } $compiled = array(); foreach ($var as $key => $val) { echo "{$key} = {$val}\n"; $compiled[] = $key . '=' . $val; } print_r($compiled);
Output for 5.0.0 - 7.2.0
a = a:aaa b = b:aaa c = b:aaa Array ( [0] => a=a:aaa [1] => b=b:aaa [2] => c=b:aaa )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/jI1ID on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/jI1ID on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/jI1ID on line 8
Process exited with code 255.