3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = []; $range = range(1,10); foreach($range as $x) $arr[$x] = log10($x); print_r($arr);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Array ( [1] => 0 [2] => 0.30102999566398 [3] => 0.47712125471966 [4] => 0.60205999132796 [5] => 0.69897000433602 [6] => 0.77815125038364 [7] => 0.84509804001426 [8] => 0.90308998699194 [9] => 0.95424250943932 [10] => 1 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/UKNE0 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/UKNE0 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/UKNE0 on line 3
Process exited with code 255.
preferences:
247.31 ms | 401 KiB | 452 Q