<?php
$arr = [1, 0, 6, 9, 4, 5, 2, 3, 8, 11, 3];
for ($j = 0; $j < count($arr) - 1; $j++){ for ($i = 0; $i < count($arr) - $j - 1; $i++){ if ($arr[$i] > $arr[$i + 1]){
$tmp = $arr[$i + 1];
$arr[$i + 1] = $arr[$i];
$arr[$i] = $tmp;
}
}
}
foreach ($arr as $a) {
echo $a." ";
}
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