
vector加入元素用其成员方法push_back()
deque是push_back()或push_front()
$a=array(0=>array("name"=>"a","mail"=>"b"),1=>array("name"=>"d","mail"=>"e"))function addkey(&$val, $key, $param)
{
$val[$param['key']] = $param['val']
}
array_walk($a,'addkey',array('key'=>'tel', 'val'=>'123'))
print_r($a)
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