/**
*对数组按username从左至右匹配排序，username一样则按cardid从大到小排序
*/
$list = array(
0=>array('cardid'=>1001,'username'=>'zhangsan'),
1=>array('cardid'=>1002,'username'=>'zhangsanfeng'),
2=>array('cardid'=>1003,'username'=>'sbzhangsan'),
3=>array('cardid'=>1005,'username'=>'sbzhangsanisyou'),
4=>array('cardid'=>1007,'username'=>'zhangsan'),
);
匹配字符串：$q = 'zhangsan';
排序后的结果应该为
$list = array(
0=>array('cardid'=>1007,'username'=>'zhangsan'),
1=>array('cardid'=>1001,'username'=>'zhangsan'),
2=>array('cardid'=>1003,'username'=>'zhangsanfeng'),
3=>array('cardid'=>1005,'username'=>'sbzhangsanisyou'),
4=>array('cardid'=>1007,'username'=>'sbzhangsan'),
);
------解决方案--------------------
sql好使不
sql codeselect * from table where username like '%zhangsan%' order by locate('zhangsan',username) asc , cardid desc
------解决方案--------------------
人家要对数组排序，那就对数组排序呗
php code$list = array(0=>array('cardid'=>1001,'username'=>'zhangsan'),1=>array('cardid'=>1002,'username'=>'zhangsanfeng'),2=>array('cardid'=>1003,'username'=>'sbzhangsan'),3=>array('cardid'=>1005,'username'=>'sbzhangsanisyou'),4=>array('cardid'=>1007,'username'=>'zhangsan'),);$q = 'zhangsan';foreach($list as $v) { $r1[] = $v['cardid']; list($r2[], $r3[]) = explode($q, $v['username']);}array_multisort($r2, $r3, $r1, sort_desc, $list);print_r($list);
------解决方案--------------------
楼主给的结果有悖于自己的描述噢。
php codesort.php 29l, 801c written [user:root time:02:58:29 path:/home/liangdong/php]$ php sort.php array( [4] => array ( [cardid] => 1007 [username] => zhangsan ) [1] => array ( [cardid] => 1002 [username] => zhangsanfeng ) [0] => array ( [cardid] => 1001 [username] => zhangsan ) [3] => array ( [cardid] => 1005 [username] => sbzhangsanisyou ) [2] => array ( [cardid] => 1003 [username] => sbzhangsan ))[user:root time:02:58:31 path:/home/liangdong/php]$ cat sort.php 1001,'username'=>'zhangsan'), array('cardid'=>1002,'username'=>'zhangsanfeng'), array('cardid'=>1003,'username'=>'sbzhangsan'), array('cardid'=>1005,'username'=>'sbzhangsanisyou'), array('cardid'=>1007,'username'=>'zhangsan'), );$name = zhangsan;uasort($list, function($left, $right) { global $name; $lndx = strpos($left['username'], $name); $rndx = strpos($right['username'], $name); $lid = $left['cardid']; $rid = $right['cardid']; if ($lndx === false && $rndx !== false || $lndx !== false && $rndx === false) { // 不包含名字的算小的 return $lndx === false ? -1 : 1; } if ($lndx == $rndx) { return $rid - $lid; } else { return $lndx - $rndx; } });print_r($list);?>