对象串行化和反串行化

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 print?

<?php
    include "index.php";

    $p = new person("李四",11,"男");

    //将对象串行化
    $str = serialize($p);

    //将字符串保存在文件夹obj.txt中
    file_put_contents("obj.txt",$str);

    //读出字符串从文件中
    $str = file_get_contents("obj.txt");

    //反串行化
    $p = unserialize($str);

    echo $p->say();
?>