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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($fh); // Close the file
?>
287
PHP Write to File - fwrite() The fwrite() function is used to write to a file. The first parameter of fwrite() contains the name of the file to write to and the second parameter is the string to be written.
Open a file using fopen() function. Get the file's length using filesize() function. Read the file's content using fread() function. Close the file with fclose() function.
How to overwrite file contents with new content in PHP? 'w' -> Open for writing only; place the file pointer at the beginning of the file and truncate the file to zero length. 'w+'-> Open for reading and writing; place the file pointer at the beginning of the file and truncate the file to zero length.
Your form should look like this :
<form action="myprocessingscript.php" method="POST">
<input name="field1" type="text" />
<input name="field2" type="text" />
<input type="submit" name="submit" value="Save Data">
</form>
and the PHP
<?php
if(isset($_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
161
The problems you have are because of the extra <form> you have, that your data goes in GET method, and you are accessing the data in PHP using POST.
<body>
<!--<form>-->
<form action="myprocessingscript.php" method="POST">
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