php 二维数组遍历赋值

我个人在项目中的写法：

//遍历二维数组
foreach($tmp_array as $key => $value){
    //动态生成图片的URL
    $attach_url = $this->qiniu_utils->get_download_url($tmp_array[$key][‘attach_save_name‘] , ‘7vih5p.com1.z0.glb.clouddn.com‘, ‘PRIVATE‘);
    //赋值URL
    $tmp_array[$key][‘attach_save_url‘] = $attach_url;
}
$result[‘feed_img_ids‘] = $tmp_array;

---------------------------------------------------------------------------  以下是网上的参考答案

Q:

$arr = array(‘one‘=>array(‘name‘=>‘张三‘,‘age‘=>‘23‘,‘sex‘=>‘男‘),
			‘two‘=>array(‘name‘=>‘李四‘,‘age‘=>‘43‘,‘sex‘=>‘女‘),
			‘three‘=>array(‘name‘=>‘王五‘,‘age‘=>‘32‘,‘sex‘=>‘男‘),
			‘four‘=>array(‘name‘=>‘赵六‘,‘age‘=>‘12‘,‘sex‘=>‘女‘));

foreach($arr as $key=>$value){
	foreach($value as $key2=>$value2){
		$arr[$ey][$value][$key2][‘age‘]= 55;
	
	}
}

print_r($arr);

怎么给age赋一个新值？

A:

foreach($arr as $key=>$value){
	$arr[$key][‘age‘]=55
}
看你的需求 这就行了

参考2：

php遍历数组赋值为什么不行啊？

http://www.oschina.net/question/1434721_149652?sort=default&p=2#answers