tryphp_func_usort.php:
<!DOCTYPE html> <html> <body> <?php function my_sort($a,$b) { if ($a==$b) return 0; return ($a<$b)?-1:1; } $a=array(4,2,8,6); usort($a,"my_sort"); $arrlength=count($a); for($x=0;$x<$arrlength;$x++) { echo $a[$x]; echo "<br>"; } ?> </body> </html>
2
4
6
8