Php Script - Write To Beginning Of Text File

[Faxe3]

Hello,

 

I'm VERY new to PHP, and I am trying to make a script that is supposed to run on my website(ftp) via Cron Jobs. The script should add a line of text to an existing text file on the website.

 

<?php
$fp_source = file_get_contents('file.txt');
$fp_dest = fopen('file_temp.txt', 'w'); // Makes a temporary file
$stringData = "\"model\";\"quantity\"\n";
fwrite($fp_dest, $stringData);
fwrite($fp_dest, $fp_source)
}
fclose($fp_source);
fclose($fp_dest);
unlink('dcs_prisliste.txt');
rename('dcsprisliste_temp.txt','dcs_prisliste.txt');
?>

 

The problem is that when this script runs the file-size of the file goes from 1.7 MB to 180 MB! Why is that?

 

Thanks,

Faxe3

[requinix]

That lone } bothers me. Did you post your exact script? The whole thing?

[Christian F.]

What requinix said.

 

Also, you should really be using file_put_contents () instead of fopen (), fwrite () and flcose ().

[Faxe3]

Hi again,

 

Thanks for your answers.

 

 

That lone } bothers me. Did you post your exact script? The whole thing?

I think that was a typo

 

What requinix said.

 

Also, you should really be using file_put_contents () instead of fopen (), fwrite () and flcose ().

I've tried using file_put_contents istead:

<?php
$fp_source = file_get_contents('/public_html/file.txt');
$stringData = "\"model\";\"quantity\"\n";
file_put_contents("/public_html/file.txt", "");
file_put_contents("/public_html/file.txt", $stringData);
file_put_contents("/public_html/file.txt", $fp_source, FILE_APPEND);
?>

 

But it doesn't seam to work.

 

Thanks,

Faxe3

Edited September 24, 2012 by Faxe3

[Christian F.]

No need to call file_put_contents () multiple times. Prepare the data you want to save into the file, in the manner which you want it saved, and then write it. You should also check for errors, as mentioned in the PHP manual.

Without any error messages, or a better explanation of how it "doesn't seem to work", I'm afraid we cannot help you.

[Faxe3]

Hi,

 

I've tried making another script:

<?php
$file = 'file.txt'; 
$appendBefore = '\"model\";\"quantity\"\n';
$temp = file_get_contents($file);
$content = $appendBefore.$temp;
file_put_contents($file, $content);
?>

 

It doesn't write any error message, but the text is just not written to the file. Nothing happens.

 

Thanks,

[Christian F.]

What you need to do is to verify that the variables contain what you expect them to contain, and then check the return values from the function (file_put_contents () in this case) to ensure the call was successful. You haven't done so here, thus you have no indication of whether or not things are working.

[Faxe3]

What you need to do is to verify that the variables contain what you expect them to contain, and then check the return values from the function (file_put_contents () in this case) to ensure the call was successful. You haven't done so here, thus you have no indication of whether or not things are working.

Could you maybe help me do this? Because as I said I'm very new to PHP and I really don't know how I should do what you wrote.

 

Thanks,

Edited September 25, 2012 by Faxe3

[Christian F.]

Jessica's signature (random post of hers) contains links to multiple resources which explain how to do this, and more. I strongly recommend that you read through them, and trying out what's detailed there.