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<?php $array = array_combine(range(1, 10), range(1, 10)); $array = array(custom => 'custom')+$array; print_r($array);
Output for 5.5.0 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
Notice: Use of undefined constant custom - assumed 'custom' in /in/CgbcX on line 3 Array ( [custom] => custom [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 [6] => 6 [7] => 7 [8] => 8 [9] => 9 [10] => 10 )
Output for hhvm-3.12.0
Notice: Use of undefined constant custom - assumed 'custom' in /in/CgbcX on line -1 Array ( [custom] => custom [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 [6] => 6 [7] => 7 [8] => 8 [9] => 9 [10] => 10 )
Output for 5.0.0 - 5.4.45
Array ( [custom] => custom [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 [6] => 6 [7] => 7 [8] => 8 [9] => 9 [10] => 10 )
Output for 4.4.5 - 4.4.9
<br /> <b>Fatal error</b>: Call to undefined function: array_combine() in <b>/in/CgbcX</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.4.4
<br /> <b>Fatal error</b>: Call to undefined function: array_combine() in <b>/in/CgbcX</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: array_combine() in <b>/in/CgbcX</b> on line <b>2</b><br />