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run code in 150+ php & hhvm versions
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<?php $hash = '8234jfr98j4fnui4hfj3289rj8'; $numbers = preg_replace('/[a-z]/si', 'a', $hash); $numbers = str_split($numbers); foreach ($numbers as &$temp) { if ($temp === 'a') unset($temp); } print_r($numbers);
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 8 [1] => 2 [2] => 3 [3] => 4 [4] => a [5] => a [6] => a [7] => 9 [8] => 8 [9] => a [10] => 4 [11] => a [12] => a [13] => a [14] => a [15] => 4 [16] => a [17] => a [18] => a [19] => 3 [20] => 2 [21] => 8 [22] => 9 [23] => a [24] => a [25] => 8 )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/UPmGF on line 5
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 '$' in /in/UPmGF on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/UPmGF on line 5
Process exited with code 255.