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run code in 150+ php & hhvm versions
Bugs & Features
<?php function breakPartitionsLongerThan ($partitions, $length) { $ret = array(); $partition = call_user_func_array ('array_merge', $partitions); $chunks = array_chunk ($partition, $length); if (count($chunks) > 1) for ($i = 0; $i < count ($chunks) - 1; $i++) // for every chunk except the last one, append the first address of the next chunk. $chunks[$i][] = $chunks[$i+1][0]; $ret = array_merge ($ret, $chunks); return $ret; } var_dump (breakPartitionsLongerThan([[1,2,3,4,5],[6,7,8,9,10]], 6));
based on h7Eqb
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> array(7) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> int(6) [6]=> int(7) } [1]=> array(4) { [0]=> int(7) [1]=> int(8) [2]=> int(9) [3]=> int(10) } }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/X7K1S on line 17
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/X7K1S on line 17
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/X7K1S on line 17
Process exited with code 255.