fwrite function writes nothing to the file - php

Question

I am trying to write data into a txt file, but It won't work. there is no error. it just won't work.
here is the code
if (isset($_REQUEST['submit']))
{
$hour = $_REQUEST['hour'];
$family = $_REQUEST['family'];
$how = $_REQUEST['how'];
$will = $_REQUEST['will'];
$fun = $_REQUEST['fun'];
$kind = $_REQUEST['kind'];
$device = $_REQUEST['device'];
$study = $_REQUEST['study'];
$agree = $_REQUEST['agree'];
$text = "hour :" . $hour . "<br />" . "family" . $family . "<br />" . "تطابفق با درس" . $how . "<br />" . "سرگرمی های غیر مجازی : " . $will . "<br />" . "نوع سرگرمی :" . $fun . "<br />" . "kind : " . $kind . "<br />" . "device " . $device . "<br />" . "اثیر بر درس" . $study . "<br />" . "کنترل " . $agree . "<br />" ;
fopen('/1.txt', "r");
fwrite('/1.txt',"hour :" . $hour . "<br />" . "family" . $family . "<br />" . "تطابفق با درس" . $how . "<br />" . "سرگرمی های غیر مجازی : " . $will . "<br />" . "نوع سرگرمی :" . $fun . "<br />" . "kind : " . $kind . "<br />" . "device " . $device . "<br />" . "اثیر بر درس" . $study . "<br />" . "کنترل " . $agree . "<br />");
fclose('/1.txt');
}
do note that there is an "else" that includes all the aforementioned input fields that I used in the code , and that I am executing on localhost.
thanks

Answer 1

You cannot write to it since you are opening it as read-only:
$handle = fopen('/1.txt', "r");
Instead:
$handle = fopen('/1.txt', "w"); // to write only, if you need to read and write use 'w+'
You also need to store fopen in a $handle so you can write to it later.
Documentation: http://www.php.net/manual/en/function.fopen.php
Now the first parameter for fwrite should be $handle:
fwrite($handle, "hour :" . $hour . "<br />" . "family" . $family . "<br />" . "تطابفق با درس" . $how . "<br />" . "سرگرمی های غیر مجازی : " . $will . "<br />" . "نوع سرگرمی :" . $fun . "<br />" . "kind : " . $kind . "<br />" . "device " . $device . "<br />" . "اثیر بر درس" . $study . "<br />" . "کنترل " . $agree . "<br />");
Documentation: http://www.php.net/manual/en/function.fwrite.php
At the end you should also close with $handle:
fclose($handle);
Documentation: http://www.php.net/manual/en/function.fclose.php

Answer 2

You are opening the file as read-only, with the ruse w instead. And you need to pass fwrite the return of fopen as first argument, not the filename:
$f = fopen('/1.txt', "w");
fwrite($f,"hour :" . $hour . "<br />" . "family" . $family . "<br />" . "تطابفق با درس" . $how . "<br />" . "سرگرمی های غیر مجازی : " . $will . "<br />" . "نوع سرگرمی :" . $fun . "<br />" . "kind : " . $kind . "<br />" . "device " . $device . "<br />" . "اثیر بر درس" . $study . "<br />" . "کنترل " . $agree . "<br />");
fclose($f);

Answer 3

You have to pass in a 'w' to write to a file.
$handle = fopen('/1.txt', "w");
Passing in 'r' makes it so you are opening a 'read-only' file.

Answer 4

Much simpler:
file_put_contents('/1.txt', $text);