Question

php二维数组排序

原数组<?php
$ary=array(array("ID"=>21,"name"=>"kitty"),array("ID"=>22,"name"=>"sony"),array("ID"=>17,"name"=>"picker")
)
现在想根据ID大小生成新的数组，为
$ary=array(array("ID"=>17,"name"=>"picker"),array("ID"=>21,"name"=>"kitty"),array("ID"=>22,"name"=>"sony")
应该怎么写，或者说算法是怎样的，求解！！！！

Answer 1

$ary=array(array("ID"=>21,"name"=>"kitty"),array("ID"=>22,"name"=>"sony"),array("ID"=>17,"name"=>"picker"));

for($i=0; $i<count($ary) ;$i++){
for($j=0; $j<$i; $j++){
if($ary[$i]['ID'] > $ary[$j]['ID']){
$temp = $ary[$i]['ID'];
$ary[$i]['ID'] = $ary[$j]['ID'];
$ary[$j]['ID'] = $temp;
}
}
}

Answer 2

functions Ssort($arr){
$tmp = array();
froeach($arr as $value){
// 冒泡排序
}
}

Answer 3

sort($ary);