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Editorial Team
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Asked: 2026-06-19T04:38:36+00:00

I’ve searched around this site for an answer but couldnt find any. I have

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I’ve searched around this site for an answer but couldnt find any.

I have a form and I’d like to get the contents of the input written into a txt file. To make it simple I just wrote a simple form and a script but it keeps getting me a blank page. Here is what I got

<html>
<head>
    <title></title>
</head>
<body>
    <form>
        <form action="myprocessingscript.php" method="post">
        <input name="field1" type="text" />
        <input name="field2" type="text" />
        <input type="submit" name="submit" value="Save Data">
    </form>
    <a href='data.txt'>Text file</a>
</body>

and here is my PHP file

<?php
$txt = "data.txt"; 
$fh = fopen($txt, 'w+'); 
if (isset($_POST['field1']) && isset($_POST['field2'])) { // check if both fields are set
   $txt=$_POST['field1'].' - '.$_POST['field2']; 
   file_put_contents('data.txt',$txt."\n",FILE_APPEND); // log to data.txt 
   exit();
}
    fwrite($fh,$txt); // Write information to the file
    fclose($fh); // Close the file
    ?>
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1 Answer

  1. Editorial Team

    Your form should look like this : 

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

    and the PHP

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

    I wrote to /tmp/mydata.txt because this way I know exactly where it is. using data.txt writes to that file in the current working directory which I know nothing of in your example.

    file_put_contents opens, writes and closes files for you. Don’t mess with it.

    Further reading:
    file_put_contents

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