• PHP动态修改配置文件——php经典实例


    文件结构:

    index.php 主页

    config  配置文件

    doUpdate.php 修改功能页

    index.php

    <html>
        <head>
            <title>修改配置</title>
            <meta charset='utf-8' />
        </head>
        
        <body>
            <form action='doUpdate.php' method='post'>
                <table border='1' width='300'>
                    <?php
                        //读取文件
                        $info=file_get_contents("config.php");
                        //var_dump($info);
                        
                        //正则
                        preg_match_all('/define("(.*?)","(.*?)")/',$info,$arr);
                        //var_dump($arr);
                        
                        //遍历
                        foreach($arr[1] as $k=>$v){
                            echo "<tr>";
                                echo "<td>{$v}</td>";
                                echo "<td><input type='text' name='{$v}' value='{$arr[2][$k]}' /></td>";
                            echo "</tr>";
                        }
                    ?>
                    <tr>
                        <td colspan='2' align='center' >
                            <input type='submit' value='保存' />
                            <input type='reset'  />
                        </td>
                    </tr>
                </table>
            </form>
        </body>
    </html>

    config.php

    <?php
        define("HOST","localhost3311");
        define("USER","root3311");
        define("PWD","1231233311");
        define("DBNAME","test3311");
    
    ?>

    doUpdate.php

    <?php
        //读文件
        $info=file_get_contents("config.php");
        
        //var_dump($_POST);
        //die;
        //遍历$_POST
        foreach($_POST as $k=>$v){
            //正则替换
            $info=preg_replace("/define("{$k}",".*?")/","define("{$k}","{$v}")",$info);
        }
    
        //回填
        file_put_contents("config.php",$info);
        echo "ok";
        header("refresh:1;url=index.php");
    
    ?>

     下载地址:http://files.cnblogs.com/files/wordblog/config.zip

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  • 原文地址:https://www.cnblogs.com/wordblog/p/6849966.html
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