deleting part of a txt file

e39m5

I am going to make a form where someone fills out email and a bunch of other information. It will send the information to a txt file. (I don't have mySql) There will be an admin panel and in it I will use the explode command to list the information from the txt file in tables. In the last column there will be to links, Accept and Decline, using the mail function it will send the person an email telling them if their request was accepted, or declined.

I can do all of that fine, this is the problem.

I need the information in the txt file to be deleted when the Decline link is hit, and I need the information to be sent to a different file when the accept button is hit. How can I do this?

e39m5

hmm...i didn't get an answer, did I explain this good? Sometimes thats the reason why.

drew010

or will it just be one user written to its own file?

e39m5

multiple users in a file

Thanks,
e39m5

drew010

ok if its multiple in a file here is ome pseudo code for you to work with.

admin hits accept or decline button
the text file is read into an array using file()
for $i = 0; to sizeof($array) - 1
explode each element and check to see if we are on the right user,
if so break; else continue loop until it finds the user.
create variable $temp
$array[sizeof($array) - 1] = $temp;
$array[sizeof($array) - 1] = $array[$i];
$array[$i] = $temp;
//swap the right user with the last value
do what you need to with the $array[$i] which is the user you are editing.
array_pop($array);
//dont need the user anymore.
fopen the data file in w+ mode to clear it
then foreach the array and write each element back to the file.

hope that helps. i can be more clear if necessary

e39m5

I sordof see what your saying it it would help if you can explain more thouroughly though. Now, to make the table I am going to use the explode command. Now, once that is done, the code completely disregards and is over with. How am I going to check if were on the right user?

drew010

here is a function from a program i made a while back that basically stores id numbers with corresponding link urls in a text file so you can call click.php?link=title and it will search the text file for title and redirect. in the admin section i have delete and edit options, this is delete, similar to what you want to do.

function deleteLink()
{
    global $config;
    $input = file($config[dataFile]);


//next part will iterate over all the entries in the array.
//it will explode them and check to see if the current link name matches the one POSTed for deletion.
//this is similar to what you will do, just check the username instead
//if the link name matches, it skips over it and then continues adding the other links into an array.
    foreach($input as $line) {
        $lineData = explode("|", $line);
        if($lineData[0] == $_POST[linkName]) {
            continue;
        } else {
            $return[] = $lineData[0] . "|" . $lineData[1];
        }
    }

//now that we have an array with everything except the one we want deleted,
//we can write them back to the file
//above this last step is where you will put code to handle if the user was approved or deleted,
//and do what you want to do with them
    $fp = fopen($config[dataFile], "w+");
    if(!$fp) {
        echo "Couln't not open data file for writing.";
        exit;
    }

foreach($return as $oneLink) {
    fwrite($fp, $oneLink);
}

echo "<center>Successfully deleted link $_POST[linkName] from list</center><br><br>\n\n";
fclose($fp);
}

hope that helps, i also have functions for edit if you need it.

e39m5

Excellent code!

I think in the link I will have email=email, user=user, and reuest=accept/delete. I will make a code and it will say if accept mail() Your request has been accepted, and ielse, your request has not been accepted. That should work, right?

drew010

yeah, you can just put the if/else in between the code where it writes to the file and have it tell them the status and do what is necessary with the text entry.

e39m5

just one question, which variabe is it deleting? link name? I want it to check against user, so i'm just wondering if im changing the right variable

drew010

what my code does is just delete a line by not actually pushing it to the array that will be written to file. you can compare whatevr you need in that line and determine if it should be written or not. if that makes sense.