This article mainly introduces the method of quick sorting of php associative arrays, involving related skills of php array sorting, which is very practical. Friends in need can refer to it
The example of this article tells about the quick sorting of php associative arrays Sorting method. Share it with everyone for your reference. The details are as follows:
<?php function qsort($a,$f) { qsort_do(&$a,0,Count($a)-1,$f); } function qsort_do($a,$l,$r,$f) { if ($l < $r) { qsort_partition(&$a,$l,$r,&$lp,&$rp,$f); qsort_do(&$a,$l,$lp,$f); qsort_do(&$a,$rp,$r,$f); } } function qsort_partition($a,$l,$r,$lp,$rp,$f) { $i = $l+1; $j = $l+1; while ($j <= $r) { if ($f($a[$j],$a[$l])) { $tmp = $a[$j]; $a[$j] = $a[$i]; $a[$i] = $tmp; $i++; } $j++; } $x = $a[$l]; $a[$l] = $a[$i-1]; $a[$i-1] = $x; $lp = $i - 2; $rp = $i; } ?>
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