帮下忙，这有关问题已经困惑了小弟我好几天了

帮下忙，这问题已经困惑了我好几天了。
如果GID等于ID就添加新值，请问怎样实现呢？


------解决思路----------------------

$start = array(<br />	array('id' => 11, 'name' =>  '张三', 'title' => '上班'),<br />	array('id' => 19, 'name' =>  '李四', 'title' => '没上班'),<br />	array('id' => 18, 'name' =>  '王五', 'title' => '下班'),<br />	);<br /><br />$saler = array(<br />	array('gid' => 19, 'salernum' => '10', 'num' => '80'),<br />	array('gid' => 18, 'salernum' => '11', 'num' => '81'),<br />	);<br /><br />//格式化 $start<br />foreach($start as $item) $r[$item['id']] = $item;<br /><br />//赋值<br />foreach($saler as $item)<br />  if(isset($r[$item['gid']])) $r[$item['gid']]['num'] = $item['num'];<br /><br />$start = array_values($r);<br />print_r($start);

Array<br />(<br />    [0] => Array<br />        (<br />            [id] => 11<br />            [name] => 张三<br />            [title] => 上班<br />        )<br /><br />    [1] => Array<br />        (<br />            [id] => 19<br />            [name] => 李四<br />            [title] => 没上班<br />            [num] => 80<br />        )<br /><br />    [2] => Array<br />        (<br />            [id] => 18<br />            [name] => 王五<br />            [title] => 下班<br />            [num] => 81<br />        )<br /><br />)<br /><br />

你总得知道自己要做什么的

------解决思路----------------------

$start = array(<br />    array('id'=>11,'name'=>'张三','title'=>'上班'),<br />    array('id'=>19,'name'=>'李四','title'=>'没上班'),<br />    array('id'=>18,'name'=>'王五','title'=>'下班')<br />);<br />$saler = array(<br />    array('gid'=>19,'salernum'=>'10','num'=>'80'),<br />    array('gid'=>18,'salernum'=>'11','num'=>'81'),<br />);<br /><br />foreach($start as $key=>$val){<br />    foreach($saler as $v){<br />        if($val['id'] == $v['gid']){<br />            $start[$key]['num'] = $v['num'];<br />            break;<br />        }<br />        $start[$key]['num'] = '0';<br />    }<br />}<br />var_dump($start);

array<br />  0 => <br />    array<br />      'id' => int 11<br />      'name' => string '张三' (length=6)<br />      'title' => string '上班' (length=6)<br />      'num' => string '0' (length=1)<br />  1 => <br />    array<br />      'id' => int 19<br />      'name' => string '李四' (length=6)<br />      'title' => string '没上班' (length=9)<br />      'num' => string '80' (length=2)<br />  2 => <br />    array<br />      'id' => int 18<br />      'name' => string '王五' (length=6)<br />      'title' => string '下班' (length=6)<br />      'num' => string '81' (length=2)