Question

我想将值（$ login）从cookie传递给$ dir。的 file.php

<?php
class File {
    public $filename;
    public $login;
    public $dir;
    public function __construct() {
        $this->login = $_COOKIE['login'];
        this->dir = "userFiles/" . $this->login . "/";
        $createDir="./userFiles/".$login;
        if (!is_dir($createDir)){
            mkdir($createDir,0777,true);
        }
        $action = isset($_POST['action']) ? $_POST['action'] : false;
        $this->filename = isset($_POST['filename']) ? $_POST['filename'] : false;
    }
    private function save() {
        $content = isset($_POST['content']) ? $_POST['content'] : '';
        file_put_contents($this->dir.$this->filename, urldecode($content));
    }
}
$file = new File();
?>

这是整个代码。文件名和操作变量由index.php页面中的ajax传递。

index.php 这是将数据发送到

的主页面

<?php
    if ( ! isset($_COOKIE['login']) ) {
        echo "Need to log in first";
        header("refresh:2;url=login.php");
        exit;
    }
?>
<!doctype html>
<html>
<head>
<title>Editor</title>
</head>
<body>
    <textarea id="code" name="code">code goes here</textarea>
 <br/><button id="save">save</button>
<input type="text" id="filename" value="test.txt"><br>  
<script src="JavaScript/jquery.js"></script>
<script>
var url = 'file.php';
$("#save").click(function() {
    $.ajax({
        url : url,
        type: 'post',
        xhrFields: {
     withCredentials: true
   },
        data : {
            filename : $("#filename").val(),
            action : 'save',
            content : encodeURIComponent($('#code').val())
        }
    });
});
</script>
</body>
</html>

Answer 1

这应该适合你：

（您只能在constant values中将class members分配给class definition！所以您必须在constructor或function中分配它！你必须使用$this->来访问类的变量

举个例子：

class File {
    public $filename;
    public $login; //problem here
    public $dir; // $login is not getting here. It works if I remove $login.

    public function __construct() {
        $this->login = $_COOKIE['login'];
        $this->dir="userFiles/".$this->login."/";
    }
}

$obj = new File();
echo $obj->login . "<br />";
echo $obj->dir;

所以你的整个代码应该是这样的：

class File {

    public $filename;
    public $login;
    public $dir;

    public function __construct() {
        $this->login = $_COOKIE['login'];
        $this->dir = "userFiles/" . $this->login . "/";

        if (!is_dir($createDir)){
            mkdir($createDir,0777,true);
        }

    }

}

有关详细信息，请参阅：http://php.net/manual/en/language.oop5.properties.php

从php类中获取cookie的价值？

1 个答案: