Having trouble with fwrite(); and fclose();

[Namadoor]

I have a script which writest to a file, using the following code:

$fp = fopen("test1.php", "w");
fwrite("$fp", "Testing!");
fclose("$fp");

When I run it, I get the following errors:
Warning: Supplied argument is not a valid File-Handle resource in /home/mark/public_html/CreateQuiz.php on line 110

Warning: Supplied argument is not a valid File-Handle resource in /home/mark/public_html/CreateQuiz.php on line 111

Line 110 is the fwrite one, and 111 the fclose one. Why am I getting these errors?

[williamisis]

have a try:
chmod 777 yrpage.php

[Namadoor]

That didn't help. I also CHMODed also CHMODed the file it is writing to. Still no luck... 🙁

[elfynmcb]

Hey,

Try this and see what it output's:

<?php

error_reporting( E_ERROR | E_WARNING | E_PARSE );

$file = "test1_1.php";
if( is_file($file) )
{
    unlink($file);
}
$fp = fopen("test1_1.php","w");
if( ! $fp )
{
    die("warning: failed to open $file for writing!");
}
$str = "<?php \$var=\"<H1>Hello World!</H1>\"; echo \$var.\"\\n\"; ?>\n";
if( ! fwrite($fp,$str) )
{
    die("warning: failed to write \$str to $file");
}
if( ! fclose($fp) )
{
    die("warning: failed to close \$fp");
}

$fp = fopen($file,"r");
if( ! feof($fp) )
{
    while( ! feof($fp) )
    {
        $cont .= fgets($fp,4096);
    }
}
else
{
    die("warning: failed to open $file for reading!");
}

echo "$file contents:\n<hr>\n<pre>".htmlentities($cont)."</pre>\n";

?>

You should see the the visual look of $cont.

[elfynmcb]

Hi,

You can also look here to see it:
http://haringayyouth-13.dsl.easynet.co.uk/public/elfyn/php4/test_fwrite.php

If The previous does not work for you then your (or your hosts) php.ini is badly configured.

[Namadoor]

Okay, I ran the little program from 2 posts above, it all worked except I got this:

Warning: Unlink failed (Permission denied) in /home/mark/public_html/whatwrong.php on line 8

So then I tried running the program I was having trouble with, and it still got thoes two errors!

Why? 😕

[elfynmcb]

Hi,

Well that 'Permissiond denied' error would only happen if your a) your not the owner of the file or b) you (or the web server user) does not have write permission on the file.

Before the unlink() part, add this:

chmod($file,0755);

This should work now, if not your (or hosts) server is running as a totally un-privvied' user and cannot perform the chmod on your files. consult host admin or man pages for permissions/setup.

[Namadoor]

Yeah, I know how to correct that, but I don't know why my script is giving me errors!

[elfynmcb]

Hey,

In the 4th part of this thread there's the script i tapped out. Are the error's that appear coming from that script (i.e. lowercase 'warning:', no error numbers and no html formatting) ???

[elfynmcb]

Sorry i forgot,

If you're still getting errors, try un-commenting the unlink() statement and see if it works (i only added that for debugging purposes, to see where the error's were occuring).

[Namadoor]

Allright, I got it working.

It seems to work when I do it like this

 fwrite($fp,$writestring); 

But not when I put it in quotes like this:

 fwrite("$fp","$writestring"); 

Anyway, thanks for the help 🙂