用PHP中的表單寫入.txt文件

Question

我看到了this question，我想在評論中提問，但沒有足夠的聲望。所以我在這裏問這個問題。

我在HTML表單：

<form action="myprocessingscript.php" method="POST"> 
Name : <input name="field1" type="text" /> 
Email : <input name="field2" type="text" /> 
<input type="submit" name="submit" value="Save Data"> 

而且在PHP腳本處理，myprocessingscript.php：

if (isset($_POST['field1']) && isset($_POST['field2'])) { 
    $data = 'comments.txt' . $_POST['field1'] . ' ' . $_POST['field2'] . "\n"; 
    $ret = file_put_contents('comments.txt', $data); 

    if ($ret === false) { 
    die('There was an error Sending The Comment'); 
    } 

    else { 
    echo "The Comment Has Been Sent Succesfully !"; 
    } 
} 

else { 
    die('Fill in The Form Please !'); 
} 

if (isset($_POST['field1']) && isset($_POST['field2'])) { 
    $data = 'comments.txt' . $_POST['field1'] . ' ' . $_POST['field2'] . "\n"; 
    $ret = file_put_contents('comments.txt', $data); 

    if ($ret === false) { 
    die('There was an error Sending The Comment'); 
    } 

    else { 
    echo "The Comment Has Been Sent Succesfully !"; 
    } 
} 

else { 
    die('no post data to process'); 
} 

當我寫的形式的東西到一個文本文件（comments.txt）之前的文字被刪除 - 我該怎麼辦？

Answer 1

你只需要在 '追加' 標誌添加到file_put_contents()：

file_put_contents('comments.txt', $data, FILE_APPEND); 

參見：http://uk3.php.net/manual/en/function.file-put-contents.php