PHP把2个二维数组合并一个二维数组2种解法

发布时间：2015-05-27 19:31:50作者：知识屋

题目：有以下2个二维数组

1
$a=Array(0 => Array(id => 66,class_name => www.iiwnet.com),1 => Array(id => 67,class_name => linux ));
2
$b=Array(0 => Array(class_count=> 8),1 => Array(class_count => 2));
两个数组内容如上，如何把$a和$b合并成为一个新的二维数组，要求新数组内容如下：

1
Array(0 => Array(id => 66,class_name => www.iiwnet.com，class_count=> 8),1 => Array(id => 67,class_name => linux ，class_count => 2));
这个题目一定有人遇到过正好今天群里有人问就给出2种解法
以下代码由 PHP教程网原创提供
01
方法一：
02

03
    function arrpreg(){
04
        $a=Array(0 => Array(id => 66,class_name => www.iiwnet.com),1 => Array(id => 67,class_name => linux ));
05
        $b=Array(0 => Array(class_count=> 8),1 => Array(class_count => 2));
06
        $arr = array();
07
        foreach ($a as $k => $r) {
08
            foreach($r as $k1 => $r1){
09
                $arr[$k][$k1] = $r1;
10
            }
11
        }
12
        foreach ($b as $k => $r) {
13
            foreach($r as $k1 => $r1){
14
                $arr[$k][$k1] = $r1;
15
            }
16
        }
17
        return $arr;
18
    }
19
    $ar= arrpreg();
20
    echo '<pre>';
21
     print_r($ar);
22
    echo '</pre>';
23
    ?>
24

25
方法二：
26

27
    $a = array(0 => Array(id => 66,class_name => www.iiwnet.com),1 => Array(id => 67,class_name => linux ));
28
    $b = array(0 => Array(class_count=> 8),1 => Array(class_count => 2));
29
    $arr = array();
30
    foreach($a as $k=>$r){
31
        $arr[] = array_merge($r,$b[$k]);
32
    }
33
    echo '<pre>';
34
    print_r($arr);
35
    echo '</pre>';