CODEWITHSUNDEEP
phphtml
Arad016
Arad016

Reputation: 53

save post data into file via php

I am using a simple HTML form to send http post request in this format: key1=value1&key2=value2&key3=value3&key4=value4&key5=value5 and i am trying to save the http post data into a text file using PHP

This is the PHP code I came up with:

$data1 = $_POST['key1'] ;
$data2 =$_POST['key2'] ;
$data3 =$_POST['key3'] ;
$data4 =$_POST['key4'];
$data5 =$_POST['key5'];
$fp = fopen('data.txt', 'a');
fwrite($fp, $_POST['data1'], $_POST['data2'], $_POST['data3'], $_POST['data4'], $_POST['data5']);
fclose($fp);

but its only creating the file "data.txt" and not adding any of the values into the text file

What am I doing wrong?

Upvotes: 1

Views: 960

Answers (2)

ADyson
ADyson

Reputation: 61839

Change

fwrite($fp, $_POST['data1'], $_POST['data2'], $_POST['data3'], $_POST['data4'], $_POST['data5']);

To

fwrite($fp, "$data1,$data2,$data3,$data4,$data5");

All those "data" variables you defined are individuals, they aren't part of the $_POST array.

And fwrite expects a single string of data not a set of separate ones, so you need to concatenate them together. I put commas between them so you've got some chance of telling them apart but obviously you can change it to suit your requirements. Documentation: https://www.php.net/manual/en/function.fwrite.php

P.S. if your variables are being sent in the URL querystring (rather than the body of the request) then you need to use $_GET to retrieve them instead, like this:

$data1 = $_GET['key1'];
$data2 = $_GET['key2'];
$data3 = $_GET['key3'];
$data4 = $_GET['key4'];
$data5 = $_GET['key5'];

Upvotes: 0

Nima HeydariNasab
Nima HeydariNasab

Reputation: 38

Query string parameters should be accessed with $_GET, even if the request method is POST.

Also, indexes data1, data2, data3, data4, and data5 don't exist in request.

fwrite accepts at most 3 arguments.

Final code should be like this:

<?php

$data1 = $_REQUEST['key1'];
$data2 = $_REQUEST['key2'];
$data3 = $_REQUEST['key3'];
$data4 = $_REQUEST['key4'];
$data5 = $_REQUEST['key5'];
$fp = fopen('data.txt', 'a');
fwrite($fp, implode("\n", [$data1, $data2, $data3, $data4, $data5]));
fclose($fp);

Upvotes: 1

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