PHP怎么循环啊

Question

怎么把这个数组循环成这样？数组的tag分割为TagId和TagKey
$PlatformId=2;
$TEST_POST = array('op0-0'=>'=', 'tag0-0' => '3,0', 'inOperate0-1'=>'AND', 'op0-1'=> '=', 'tag0-1'=>'3,0', 'Operate1-0'=>'AND', 'op1-0'=>'=', 'tag1-0'=>'3,0');