I am trying to create a script where I can sell my key codes/licence codes to people. Right now I have figured a way for the php script to read off a text file and output it then delete the code/key in the text file.
<?php
$content = file('test.txt');
echo $content[0];
$file = "test.txt";
$line = 0;
$array = file($file);
unset($array[$line]);
$fp = fopen($file, 'w+');
foreach($array as $line)
fwrite($fp,$line);
fclose($fp);
?>
My question is that is there a way to integrate PayPal with this and they can pick multiple quantities. So for example if they picked 5 codes in the checkout a php script would email them 5 codes and delete them from the list.
Related
I m developing a CMS based website in which there is "Import Contact" functionality by clicking it user can select the .txt file which contains Contact Numbers.
User can import unlimited .txt file but I want to add limit of importing contact numbers.
for ex. 1.txt contains 100 contact numbers.
& 2.txt contains 50 contact numbers.
& I had assigned 100 limit to the user, so whenever user imports the another .txt file it shoul throw error i.e "You have crossed your limit".
I had tried
<?php
$file = "somefile.txt";
$lines = count(file($file));
echo "There are $lines lines in $file";
?>
& this also;
$file="largefile.txt";
$linecount = 0;
$handle = fopen($file, "r");
while(!feof($handle)){
$line = fgets($handle, 4096);
$linecount = $linecount + substr_count($line, PHP_EOL);
}
fclose($handle);
echo $linecount;
this function i'm able to find out the contact numbers in .txt file.
But no able to compare two txt file & throw error..!!
Firstly don't use text file, use a CSV file. If the conacts file contains multiple fields, which it will do, then you need to delimit them and CSV is the standard way to do that.
After that use:
$csv = array_map('str_getcsv', file('data.csv'));
Which will provide you with an array of array's - ie each record will be an array of fields which in turn will be in an array.
To get the numbe rof records in the file do a count of $csv
im searching for almost 2 hours for an solution for my problem.
i have a text file with a few lines:
Title1|||Content1
Title2|||Content2
Title3|||Content3
But now i want to change 2 specific line, for example Title2||Content2
i will send the id via url. so i know which line, but i wan't search via title or content which line php should change.
i have found this code:
$daten = file('../news.txt');
$fp = fopen('../news.txt', 'w');
foreach ($daten as $zeile){
$felder = explode('|||', $zeile);
if (!strcmp($felder[0], 'auto3')){
$felder[1] = 'xx';
$zeile = implode('-', $felder);
}
fwrite($fp, $zeile);
}
fclose($fp);
But how to change for expample
Title2|||Title3
of
$zeile[1]
which i get via
edit.php?id=1 ??
Sorry if I haven't understood your question correctly, don't kill me if my answer is wrong. In your case $daten is an array that contains the lines of the file "news.txt". $_GET['id'] will provide the offset that is required to edit the array.
$daten = file('../news.txt');
$fp = fopen('../news.txt', 'w');
$zeile = explode('|||', $daten[intval($_GET['id'])]);
$zeile[0] = 'ASD';//change Title1
$zeile[1] = 'FGH'."\r\n";//change Content1
$daten[intval($_GET['id'])] = implode('|||', $zeile);
fwrite($fp, implode('', $daten));
<?php
$myFile = "file.txt";
$fh = fopen($myFile, 'r');
$theData = fread($fh, filesize($myFile));
print_r ($theData);
fclose($fh)
?>
This is my current code, which has successfully read my file and printed the data to the screen. However now when I try to explode the data I just get a sever error and the page doesn't load at all, the only error message I get is page may be down for maintenance or configured incorrectly and I don't understand why it isn't working.
I am trying to put
$my_array = explode("/n", $theData);
after the data has been read, and before it is printed, but every time I add it the page gives up, but when I take it out the page loads again fine.
I need to be able to put in a foreach loop to explode the data and print it out one line at a time (it's an email directory) but I don't understand why it's not working.
$myFile = "file.txt";
$fh = fopen($myFile, 'r');
$theData = fread($fh, filesize($myFile));
$assoc_array = array()
$my_array = explode("\n", $theData);
foreach($my_array as $line)
{
$tmp = explode(" ", $line);
$assoc_array[$tmp[0]] = $tmp[1];
}
fclose($fh)
$mail = $assoc_array;
I have tried this code, which I found while doing the original research for how to read from .txt file to array, but it still throws up the server error problem.
Could someone explain where I'm going wrong?
In the end the code I've used is:
<?php
// Open the file
$filename = 'pvemail.txt';
$fp = fopen($filename, 'r');
// Add each line to an array
if ($fp) {
$array = explode("\n", fread($fp, filesize($filename)));
}
print_r ($array);
?>
I've managed to read the data and print each line out into an array, now all I need to do is make it look nice! Thanks a lot for your help guys!
Initial problems
Looks like you have a few missing semicolons, unless you typed the reference code by hand and your actual code is correct.
$assoc_array = array()
fclose($fh)
offset 1 does not exist
$tmp[1] does not exist, which means some $tmp either had no values or only one value. It is most likely the case that one of the lines is a single word without a space or completely empty.
This question already has answers here:
Need to write at beginning of file with PHP
(10 answers)
Closed 9 years ago.
Hi I want to append a row at the beginning of the file using php.
Lets say for example the file is containing the following contnet:
Hello Stack Overflow, you are really helping me a lot.
And now i Want to add a row on top of the repvious one like this:
www.stackoverflow.com
Hello Stack Overflow, you are really helping me a lot.
This is the code that I am having at the moment in a script.
$fp = fopen($file, 'a+') or die("can't open file");
$theOldData = fread($fp, filesize($file));
fclose($fp);
$fp = fopen($file, 'w+') or die("can't open file");
$toBeWriteToFile = $insertNewRow.$theOldData;
fwrite($fp, $toBeWriteToFile);
fclose($fp);
I want some optimal solution for it, as I am using it in a php script. Here are some solutions i found on here:
Need to write at beginning of file with PHP
which says the following to append at the beginning:
<?php
$file_data = "Stuff you want to add\n";
$file_data .= file_get_contents('database.txt');
file_put_contents('database.txt', $file_data);
?>
And other one here:
Using php, how to insert text without overwriting to the beginning of a text file
says the following:
$old_content = file_get_contents($file);
fwrite($file, $new_content."\n".$old_content);
So my final question is, which is the best method to use (I mean optimal) among all the above methods. Is there any better possibly than above?
Looking for your thoughts on this!!!.
function file_prepend ($string, $filename) {
$fileContent = file_get_contents ($filename);
file_put_contents ($filename, $string . "\n" . $fileContent);
}
usage :
file_prepend("couldn't connect to the database", 'database.logs');
My personal preference when writing to a file is to use file_put_contents
From the manual:
This function is identical to calling fopen(), fwrite() and fclose()
successively to write data to a file.
Because the function automatically handles those three functions for me I do not have to remember to close the resource after I'm done with it.
There is no really efficient way to write before the first line in a file. Both solutions mentioned in your questions create a new file from copying everything from the old one then write new data (and there is no much difference between the two methods).
If you are really after efficiency, ie avoiding the whole copy of the existing file, and you need to have the last inserted line being the first in the file, it all depends how you plan on using the file after it is created.
three files
Per you comment, you could create three files header, content and footer and output each of them in sequence ; that would avoid the copy even if header is created after content.
work reverse in one file
This method puts the file in memory (array).
Since you know you create the content before the header, always write lines in reverse order, footer, content, then header:
function write_reverse($lines, $file) { // $lines is an array
for($i=count($lines)-1 ; $i>=0 ; $i--) fwrite($file, $lines[$i]);
}
then you call write_reverse() first with footer, then content and finally header. Each time you want to add something at the beginning of the file, just write at the end...
Then to read the file for output
$lines = array();
while (($line = fgets($file)) !== false) $lines[] = $line;
// then print from last one
for ($i=count($lines)-1 ; $i>=0 ; $i--) echo $lines[$i];
Then there is another consideration: could you avoid using files at all - eg via PHP APC
You mean prepending. I suggest you read the line and replace it with next line without losing data.
<?php
$dataToBeAdded = "www.stackoverflow.com";
$file = "database.txt";
$handle = fopen($file, "r+");
$final_length = filesize($file) + strlen($dataToBeAdded );
$existingData = fread($handle, strlen($dataToBeAdded ));
rewind($handle);
$i = 1;
while (ftell($handle) < $final_length)
{
fwrite($handle, $dataToBeAdded );
$dataToBeAdded = $existingData ;
$existingData = fread($handle, strlen($dataToBeAdded ));
fseek($handle, $i * strlen($dataToBeAdded ));
$i++;
}
?>
ok guys need your help again,
previously you all introduced me lightbox which after some tweaking has been great. except while using my php code there doesn't seem to be a way to add a caption to the image. now a friend of my introduced me to array using a .txt file. now this is all fine and dandy but i can't seem to get the code that we came up with to read the file correctly. currently it is randomly pulling the letter "a" and the letter "p" and assigning that, which i have no clue where it is getting this.
now here is the code that i've come up with to get the contents of the file.
<?php
// process caption file into named array
//open the file
$myFile = "captions.txt";
$fh = fopen($myFile, 'r') or die("Can't open file");
$theData = explode(fread($fh, filesize($myFile)),"\n");
//close the file
fclose($fh);
//parse line by line until there is no data left.
foreach ($theData as $item => $line) {
$exploded = explode("=", $line);
if (count($exploded) == 2) {
$myFile[$exploded[0]] = $exploded[1];
}
}
?>
and then i'm using the code that auto-populates my image album in turn activating the lighbtox.
<?php
$images = glob('*.{jpg,jpeg,png,gif}', GLOB_BRACE);
foreach ($images as $image) {
if (file_exists("./thumbs/{$image}")){
echo "<img src=\"thumbs/{$image}\" alt=\"{$image}\" />";
}
}
?>
using this code generates no errors but doesn't properly read the captions file.
what i'm wanting to do is have the text file setup with the file name seperated by a = and then the caption.
here is a link to my test page if anyone wants to take a look.
http://outtamymindphoto.myftp.org/images/testalbum/testpage.php
You should start by fixing this line:
$theData = explode(fread($fh, filesize($myFile)),"\n");
According to the PHP Manual , the delimeter is the first parameter.
(array explode ( string $delimiter , string $string [, int $limit ] ))
(Read more about explode - http://php.net/manual/en/function.explode.php)
The right way:
$theData = explode("\n" , fread($fh, filesize($myFile)));
You'll also should try to output the variables in order to locate the problem.
For instance , use var_dump($var) to check $vars value.
Hope I helped you,
comment if you need further help.