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¶¼ÖªµÀһάÊý×eÈ¥ÖØÓÃϵͳº¯Êý array_unique($arr)

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    header('content-type:text/html;charset=utf8');
    $arr = array(
    array('id'=>1,'psid'=>'P101','fullname'=>'¿Î³Ì¼Æ»®È«³Æ 101','userid'=>4),
    array('id'=>1,'psid'=>'P101','fullname'=>'¿Î³Ì¼Æ»®È«³Æ 101','userid'=>3),
    array('id'=>1,'psid'=>'P101','fullname'=>'¿Î³Ì¼Æ»®È«³Æ 101','userid'=>3),
    array('id'=>1,'psid'=>'P101','fullname'=>'¿Î³Ì¼Æ»®È«³Æ 101','userid'=>2),
    array('id'=>2,'psid'=>'P102','fullname'=>'пγ̼ƻ®','userid'=>4),
    array('id'=>2,'psid'=>'P102','fullname'=>'пγ̼ƻ®','userid'=>3),
    array('id'=>2,'psid'=>'P102','fullname'=>'пγ̼ƻ®','userid'=>3),
    array('id'=>2,'psid'=>'P102','fullname'=>'пγ̼ƻ®','userid'=>2)
    );
    $arr = er_array_unique($arr);
    foreach($arr as $v){
      echo 'id: '.$v['id'].'psid: '.$v['psid'].' fullname: '.$v['fullname'].' userid: '.$v['userid'].'<br/>';
    }
    //¶þάÊý×e¼oµ¥È¥ÖØ
    function er_array_unique($arr){
      $newarr = array();
      if(is_array($arr)){
        foreach($arr as $v){
          if(!in_array($v,$newarr,true)){
            $newarr[] = $v;
          }
        }
      }else{
         return false;
      }
      return $newarr;
    }

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    id: 1psid: P101 fullname: ¿Î³Ì¼Æ»®È«³Æ 101 userid: 4
    id: 1psid: P101 fullname: ¿Î³Ì¼Æ»®È«³Æ 101 userid: 3
    id: 1psid: P101 fullname: ¿Î³Ì¼Æ»®È«³Æ 101 userid: 2
    id: 2psid: P102 fullname: пγ̼ƻ® userid: 4
    id: 2psid: P102 fullname: пγ̼ƻ® userid: 3
    id: 2psid: P102 fullname: пγ̼ƻ® userid: 2

×¢Òa£º´Ë½¨ÖÐµÄ in_array($need,$arr,$strict)

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