PHP学习总结（2）多维数组的循环输出——2019年9月18号 - 后端

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实例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>数组循环输出</title>
</head>
<body>
    <h4>多维数组循环输出</h4>
    <div>
        数组如下：<br>
        <pre>
            $arr_a = [
                [
                  'name'=>'朱老师',
                  'age'=>100,
                  'like'=>[
                    'like_a'=>'篮球',
                    'like_b'=>'羽毛球',
                    'like_c'=>'排球'
                  ]  
                ],
                [
                  'name'=>'刘老师',
                  'age'=>200,
                  'like'=>[
                    'like_a'=>'象棋',
                    'like_b'=>'围棋',
                    'like_c'=>'跳棋' 
                ],
                [
                  'name'=>'孟老师',
                  'age'=>300,
                  'like'=>[
                    'like_a'=>'游泳',
                    'like_b'=>'跑步',
                    'like_c'=>'登山'
                ]
            ];
        </pre>
    </div>
    <p>下面开始循环输出</p>
    <div>
        <?php 
        $arr_a = [
            [
                'name'=>'朱老师',
                'age'=>100,
                'like'=>[
                  'like_a'=>'篮球',
                  'like_b'=>'羽毛球',
                  'like_c'=>'排球'
                ]  
              ],
              [
                'name'=>'刘老师',
                'age'=>200,
                'like'=>[
                  'like_a'=>'象棋',
                  'like_b'=>'围棋',
                  'like_c'=>'跳棋' 
                ]
              ],
              [
                'name'=>'孟老师',
                'age'=>300,
                'like'=>[
                  'like_a'=>'游泳',
                  'like_b'=>'跑步',
                  'like_c'=>'登山'
                ]
              ]

        ];
            

        foreach ($arr_a as $k=>$v){
            foreach($v as $kk=>$vv){
                if(is_array($vv)){
                    foreach($vv as $kkk=>$vvv){
                        echo $kkk."--->".$vvv;
                        echo "<br>";
                    }
                }else{
                    echo $kk."--->".$vv;
                    echo "<br>";
                }
            }
        }
        ?>
    </div>
    
</body>
</html>

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实例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>数组循环输出</title>
</head>
<body>
    <h4>多维数组循环输出</h4>
    <div>
        数组如下：<br>
        <pre>
            $arr_a = [
                [
                  'name'=>'朱老师',
                  'age'=>100,
                  'like'=>[
                    'like_a'=>'篮球',
                    'like_b'=>'羽毛球',
                    'like_c'=>'排球'
                  ]  
                ],
                [
                  'name'=>'刘老师',
                  'age'=>200,
                  'like'=>[
                    'like_a'=>'象棋',
                    'like_b'=>'围棋',
                    'like_c'=>'跳棋' 
                ],
                [
                  'name'=>'孟老师',
                  'age'=>300,
                  'like'=>[
                    'like_a'=>'游泳',
                    'like_b'=>'跑步',
                    'like_c'=>'登山'
                ]
            ];
        </pre>
    </div>
    <p>下面开始循环输出</p>
    <div>
        <?php 
        $arr_a = [
            [
                'name'=>'朱老师',
                'age'=>100,
                'like'=>[
                  'like_a'=>'篮球',
                  'like_b'=>'羽毛球',
                  'like_c'=>'排球'
                ]  
              ],
              [
                'name'=>'刘老师',
                'age'=>200,
                'like'=>[
                  'like_a'=>'象棋',
                  'like_b'=>'围棋',
                  'like_c'=>'跳棋' 
                ]
              ],
              [
                'name'=>'孟老师',
                'age'=>300,
                'like'=>[
                  'like_a'=>'游泳',
                  'like_b'=>'跑步',
                  'like_c'=>'登山'
                ]
              ]

        ];
            

        foreach ($arr_a as $k=>$v){
            foreach($v as $kk=>$vv){
                if(is_array($vv)){
                    foreach($vv as $kkk=>$vvv){
                        echo $kkk."--->".$vvv;
                        echo "<br>";
                    }
                }else{
                    echo $kk."--->".$vv;
                    echo "<br>";
                }
            }
        }
        ?>
    </div>
    
</body>
</html>

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点击 "运行实例" 按钮查看在线实例

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