<?php/*二維數組按指定的鍵值排序*/function array_sort($array,$keys,$type='asc'){  if(!isset($array) || !is_array($array) || empty($array)){    return '';  }  //排序字段名，如：id  if(!isset($keys) || trim($keys)==''){    return '';  }  //排序方式，如：desc、asc  if(!isset($type) || $type=='' || !in_array(strtolower($type),array('asc','desc'))){    return '';  }  //定義一個數組  $keysvalue=array();  foreach($array as $key=>$val){    //對排序字段值進行過濾    $val[$keys] = str_replace('-','',$val[$keys]);    $val[$keys] = str_replace(' ','',$val[$keys]);    $val[$keys] = str_replace(':','',$val[$keys]);    //將記錄中指定的鍵名放入數組中，如：[0]=>5,[1]=>3,[2]=>6    $keysvalue[] =$val[$keys];//排序字段，如：id     索引=》排序鍵名  }  asort($keysvalue); //按值升序排序，且保持鍵名與鍵值之間的索引關系,如：[1]=>3,[0]=>5,[2]=>6  reset($keysvalue); //指針重新指向數組第一個  foreach($keysvalue as $key=>$vals) {    $keysort[] = $key;//0=>[1],1=>[0],2=>[2]  }  $keysvalue = array();  $count=count($keysort);//排序記錄數  if(strtolower($type) != 'asc'){//降序    for($i=$count-1; $i>=0; $i--) {      $keysvalue[] = $array[$keysort[$i]];    }  }else{//升序    for($i=0; $i<$count; $i++){      $keysvalue[] = $array[$keysort[$i]];    }  }  return $keysvalue;}$array=array(  array('name'=>'Tom','age'=>'23','like'=>'beer'),  array('name'=>'Trump','age'=>'50','like'=>'Food'),  array('name'=>'Jack','age'=>'26','like'=>'Travel'));print_r(array_sort($array,'age'));?>

Array(  [0] => Array    (      [name] => Tom      [age] => 23      [like] => beer    )  [1] => Array    (      [name] => Jack      [age] => 26      [like] => Travel    )  [2] => Array    (      [name] => Trump      [age] => 50      [like] => Food    ))