PHP寫txt文件與多個領域

Question

對不起，我的英語！我在stackoverflow上找到了下面的代碼，我只是嘗試添加更多的字段（我需要4）而沒有成功。我的兩個其他領域保持blanck我的data.txt。我怎樣才能輕鬆添加2個字段？預先感謝您的幫助。

形式：

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

<?php 
if(isset($_POST['field1']) && isset($_POST['field2'])) { 
$data = $_POST['field1'] . '-' . $_POST['field2'] . "\n"; 
$ret = file_put_contents('/tmp/mydata.txt', $data, FILE_APPEND | LOCK_EX); 
if($ret === false) { 
    die('There was an error writing this file'); 
} 
else { 
    echo "$ret bytes written to file"; 
} 
} 
else { 
die('no post data to process'); 
} 

Answer 1

如果4輸入在那裏，說： -

<input name="field1" type="text" /> 
<input name="field2" type="text" /> 
<input name="field3" type="text" /> 
<input name="field4" type="text" /> 

然後更改

if(isset($_POST['field1']) && isset($_POST['field2'])) { 
    $data = $_POST['field1'] . '-' . $_POST['field2'] . "\n"; 
    ... 
    ... 
} 

到

if(isset($_POST['field1']) && isset($_POST['field2']) && isset($_POST['field3']) && isset($_POST['field4'])) { 
    $data = "{$_POST['field1']}-{$_POST['field2']}-{$_POST['field3']}-{$_POST['field4']} \n"; 
    ... 
    ... 
} 

Answer 2

您需要的字段添加到HTML表單太：

<form action="myprocessingscript.php" method="POST"> 
<input name="field1" type="text" /> 
<input name="field2" type="text" /> 
<input name="field3" type="text" /> 
<input name="field4" type="text" /> 
<input type="submit" name="submit" value="Save Data"> 

而且，除了將它們添加到if語句，將其添加到從獲取的數據線$_POST變量：

$data = $_POST['field1'] . '-' . $_POST['field2'] . '-' . $_POST['field3'] . '-' . $_POST['field4'] . "\n";