Editing one row

[Schlo_50]

Hi there,

 

I have a short list stored as a .DAT file and now I want to be able to edit the last value of each row occasionally. The list is stored in the following format:

ID|NAME|CAT_ID.      ( E.g 019272516|Papo|18192817261 )

 

My edit script needs to change the third piece of data in manufacturer.DAT to whatever $relevant is. $mid and $manname which are the first and second pieces of data need to stay what they already are. I have setup a variable ($find_row_by) containing the manufacturer ID so that the text file can be looped through until the correct row is found.

 

Can someone show me the final part to actually editing my .DAT file with the new information please?

 

$find_row_by = $_POST['manid'];

if(preg_match('/^(\d+)([a-zA-Z]+)$/',$_POST['manufacturer'],$matches)){
    $relevant = $matches[1];
    $man = $matches[2]; 
  }

$file_name = "data/manufacturers.DAT";
$file_contents= "$mid|$manname|$relevant|\n";
$open_file = fopen($file_name, "a+");

fwrite($open_file, $file_contents);
fclose($open_file);

echo "<br />Manufacturer successfully added to database.<br /><br />
	<meta http-equiv=\"refresh\" content=\"2;URL=?id=operate&action=success\">
	";
}

 

Thanks in advance!

[DyslexicDog]

You could use explode() on each row to get your variables.