PHP將一數組寫入文件aa.txt，讀取aa.txt文件到一數組

 // 原來的數組 
$list = array(
        array(
            'id' => 1,
            'is_open' => 1,
            'city' => '上海',
        ),
        array(
            'id' => 2,
            'city' => '北京'
        ),
        array(
            'id' => 3,
            'city' => '南京'
        ),
        array(
            'id' => 4,
            'city' => '蘇州'
        ),
        
    );

 
 file_put_contents('aa.txt', serialize($list));  // 序列化並寫入文件 
 $readArray = unserialize(file_get_contents('aa.txt'));  // 讀取並反序列化 
 print_r($readArray);
?>

輸出的結果如下

Array
(
    [0] => Array
        (
            [id] => 1
            [is_open] => 1
            [city] => 上海
        )

    [1] => Array
        (
            [id] => 2
            [city] => 北京
        )

    [2] => Array
        (
            [id] => 3
            [city] => 南京
        )

    [3] => Array
        (
            [id] => 4
            [city] => 蘇州
        )

)