<?php
$arrs = [
[1, 5, 1],
[3, 2, 7, 5, 4],
[4, 3, 6, 5],
];
$result = [];
$num_arrs = count($arrs); for($i = 0; $i < $num_arrs; $i++){
$size = count($arrs[$i]); for($j = 0; $j < $size; $j++){
$result[$j] = [];
$result[$j][] = $arrs[$i][$j];
}
}
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