PHP動態修改配置文件

文件結構:php

index.php 主頁html

config  配置文件post

doUpdate.php 修改功能頁url

index.phpspa

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<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
                    //讀取文件
                    $info=file_get_contents("config.php");
                    //var_dump($info);
                    
                    //正則
                    preg_match_all('/define\(\"(.*?)\",\"(.*?)\"\)/',$info,$arr);
                    //var_dump($arr);
                    
                    //遍歷
                    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>
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config.phpcode

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

?>
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doUpdate.phporm

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<?php
    //讀文件
    $info=file_get_contents("config.php");
    
    //var_dump($_POST);
    //die;
    //遍歷$_POST
    foreach($_POST as $k=>$v){
        //正則替換
        $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");

?>
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