fclose Warning: fclose(): supplied argument is not a valid stream resource

Question

I am getting the warning on my pages

Warning: fclose(): supplied argument is not a valid stream resource

Using the following code

$fp = fopen('data.txt', 'w');
$write = '2';
fwrite($fp, $write);
fclose($fp);  

Update code

if(isset($_REQUEST['go1']))
{
    $fp = fopen('data.txt', 'w');
    $write = '1';
    $fp1 = fopen('file.php', 'w');
    $write1 = '<br><img src="/1/online.png" style="position:absolute; z-index:-2;" />';
}
if(isset($_REQUEST['go2']))
{

    $fp = fopen('data.txt', 'w');
    $write = '2';
    $fp1 = fopen('file.php', 'w');
    $write1 = '<br><img src="/1/offline.png" style="position:absolute; z-index:-2;" />';
}

fwrite($fp, $write);
fclose($fp);
fwrite($fp1, $write1);
fclose($fp1);

$fp = fopen('data.txt', 'r');
$contents = fread($fp, filesize('data.txt'));
fclose($fp);
if($contents == '1')
    include('file.php');
else if($contents == '2')
    include('file.php');
else
    echo 'Something else...';

getting the error on line 27 and line 29 line 27

fclose($fp);    

line29

fclose($fp1);

Solution 1

When your if() condition returnes false, there's no $fp file opened so there's nothing to close. PHP does not understand what file you wanted to close cuz there's nothing opened.

Solution 2

Your problem is in the "if-else" statement (file not opened)... check your code

Comments

[Burhan Khalid]

Did you check to make sure the file was opened correctly?

[user1561466]

@Burhan Yes the file is opening and writing the same

[Vatev]

Is there anything else in the script? If there is, try to simulate the same thing with only these lines. Also, make sure 'data.txt' is actually written to and not just some old file from previous experiments :)

[user1561466]

@Vatev I have updated the code,Please advise

[user1561466]

but the file is opening and writing the same

[paxdiablo]

You should still check the return code from fopen (and fwrite by the way) just in case. Permissions are one reason for failure, there could be others. Otherwise please confirm that the code you have posted is exactly what you have (including with no intervening stuff). The reason I ask is that your code is basically the canonical example as per php.net/manual/en/function.fwrite.php, so it's unlikely it wouldn't work as is.

[paxdiablo]

@user1561466: there is a code path where you don't open the file but attempt to close it - see the update.

[user1561466]

I have checked the written file and its confirm that the file is opening and desire code is written to it