$a = array(array("1","2"),array("3","4"));
$b = array(array("a","b"),array("c","d"));  

方式一(数组b追加到数组a后面)

$c = array_merge($a,$b);
print_r($c);

image.png

方式二(数组b插入到数组a)

foreach($a as $key=>$vo){
        $list[] = array_merge($vo,$b[$key]);
    }
     
    print_r($list);

image.png