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<?php function breakPartitionsLongerThan ($partitions, $length) { $ret = array(); foreach ($partitions as $partition) { $chunks = array_chunk ($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]], 2));
Output for git.master, git.master_jit, rfc.property-hooks
array(6) { [0]=> array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } [1]=> array(3) { [0]=> int(3) [1]=> int(4) [2]=> int(5) } [2]=> array(1) { [0]=> int(5) } [3]=> array(3) { [0]=> int(6) [1]=> int(7) [2]=> int(8) } [4]=> array(3) { [0]=> int(8) [1]=> int(9) [2]=> int(10) } [5]=> array(1) { [0]=> int(10) } }

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