fwrite Problem

DarkSoroush

Hi,
I have written a script that give information from db and try to dump them on file-system.

For saving info i have this function:

function private_writefile($filename,$data){
    $Handle = fopen($filename, 'w');
    if (fwrite($Handle, $data)===false){
     exit('WRITE PROBLEM IN '.$filename);   

    }
    fflush($Handle);
    fclose($Handle);
    chmod($filename,0777);
}

It works some times. But not always,

It saves:

page0.gr - 66kb
471203.gr - 19kb
471203_images0.gr - 19kb
471203_articles.gr - 0kb

take a look at last one! It is 0kb mean than fwrite didn't work! And it isnt the only problem. Script will end after this file! Showing me a blank screen!

Funny but it works with same data on my pc, But not on server.
If i add a line to replace data with some thing static. Maybe like this:

function private_writefile($filename,$data){
    [COLOR="Red"]$data='BAD DATA! BUT AT LAST CAN SAVE IT';[/COLOR]
    $Handle = fopen($filename, 'w');
    if (fwrite($Handle, $data)===false){
     exit('WRITE PROBLEM IN '.$filename);   

    }
    fflush($Handle);
    fclose($Handle);
    chmod($filename,0777);
}

then it works! Writing "BAD DATA! BUT AT LAST CAN SAVE IT" in all files.

Any one know why?! Is there any other function to write data?!

tnx! I am confused right now so sorry for english!

dalecosp

Well, the first thing I would do is call [man]is_writable/man on $filename, and throw an error if that fails....

DarkSoroush

Well, the first thing I would do is call is_writable() on $filename, and throw an error if that fails....

tnx, I changed my code to this:

function private_writefile($filename,$data){
    $Handle = fopen($filename, 'w');
    if (is_writable($filename)===false){
     exit('is_writable PROBLEM IN '.$filename);
    }
    if (fwrite($Handle, $data)===false){
     exit('WRITE PROBLEM IN '.$filename);
    }
    fflush($Handle);
    fclose($Handle);
    chmod($filename,0777);
}

Result is this:
page0.gr - 67kb
471203.gr - 19kb
471203_images0.gr - 0kb

and again blank page. Nothing shown! But sometimes! One on ten. It show this error:

Warning: fwrite(): supplied argument is not a valid stream resource in /home/network/public_html/ga/utility.gr.core.php on line 133
WRITE PROBLEM IN grpages/471203_images0.gr

Any idea?

DarkSoroush

I changed the code again. This time using only "file_put_contents($filename,$data);"
Now it works. It is amazing that this function works. file_put_contents is simply an "fopen","fwrite" and "fclose". But works!
tnx for reply dalecosp