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run code in 150+ php & hhvm versions
Bugs & Features
<?php function restructureArray1($array, $x) { $size = sizeof($array); if ($size < $x) return array_chunk($array, 1) + array_fill(0, $x, array()); $big_row_length = (int) ($size / $x) + 1; $big_rows_chunk = array_splice($array, 0, $size % $x * $big_row_length); return array_merge(array_chunk($big_rows_chunk, $big_row_length), array_chunk($array, $big_row_length - 1)); } function restructureArray2($array, $x) { $size = sizeof($array); $small_row_length = (int) ($size / $x); $big_row_count = $size % $x; for ($i = 0; $i < $x; ++$i) { $length = $small_row_length + (int) ($i < $big_row_count); $return [] = array_splice($array, 0, $length); } return $return; } $x = 3; $size = 7; $array = range(1, $size); $result1 = restructureArray1($array, $x); $result2 = restructureArray2($array, $x); var_dump(array_map(function($array) { return implode(', ', $array); }, $result2));
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { [0]=> string(7) "1, 2, 3" [1]=> string(4) "4, 5" [2]=> string(4) "6, 7" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/gJA7A on line 30
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 T_FUNCTION, expecting ')' in /in/gJA7A on line 30
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/gJA7A on line 30
Process exited with code 255.