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

[ska_defender]

I am getting the warning on my pages
Warning: fclose(): supplied argument is not a valid stream resource

Using the following code:

PHP Code:

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


[Fou-Lu]

You should also have an error on the fwrite. fclose should only be throwing that if $fp isn't a valid stream, which indicates that your fopen has also failed.
Use an if to determine if continuation is possible:

PHP Code:

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


[ska_defender]

This is the full code

PHP 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...'; 


[AndrewGSW]

I don't know what the issue is, but concerning 'fread'

If you just want to get the contents of a file into a string, use file_get_contents() as it has much better performance

Perhaps try file_get_contents() instead.