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
Related
I have a .csv file which I can use with Google maps API to successfully create map data.
What I'm looking to do is merge 2 (or more) .csv files and display the TOTAL data on the Google map in the same way. They are all in the same format.
I have the paths to the 2 csv files and if need be, a blank .csv file in the same directory where the files could be merged to...
Unfortuantely, the .csv files all have an initial 'header row' which would be awesome to omit when merging...
If anyone can point me in the right direction, I'd be very happy. Thanks
edit: I've tried:
$data1 = file_get_contents('google_map_data.csv');
$data2 = file_get_contents('google_map_data2.csv');
$TOTALdata = "google_map_dataALL.csv";
function joinFiles(array $files, $result)
{
if(!is_array($files)) {
throw new Exception('`$files` must be an array');
}
$wH = fopen($result, "w+");
foreach($files as $file)
{
$fh = fopen($file, "r");
while(!feof($fh))
{
fwrite($wH, fgets($fh));
}
fclose($fh);
unset($fh);
fwrite($wH, "\n"); //usually last line doesn't have a newline
}
fclose($wH);
unset($wH);
joinFiles(array($data1, $data2), $TOTALdata);
I'm assuming both files are small, so loading them all in one go should be OK.
The code loads both files then removes the first line off the second one. It also removes any end of line from the first file, but adds it's own to ensure it always has a new line...
$data1 = file_get_contents('google_map_data.csv');
$data2 = file_get_contents('google_map_data2.csv');
$TOTALdata = "google_map_dataALL.csv";
$data2 = ltrim(strstr($data2, PHP_EOL));
file_put_contents($TOTALdata, rtrim($data1).PHP_EOL.$data2);
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.
I have written a php script which parses this text file
http://www.powerball.com/powerball/winnums-text.txt
Everything is good, but I wish to control the amount that is download i.e. I do not need every single result maybe max the first 5. At the moment I am downloading the entire file (which is a waste of memory / bandwidth).
I saw the fopen has a parameter which supposed to limit it but whatever value I placed in has no effect on the amount of text that is downloaded.
Can this be done? Thank you for reading.
Here is a small snippet of the code in question which is downloading the file.
<?php
$file = fopen("http://www.powerball.com/powerball/winnums-text.txt","rb");
$rows = array();
while(!feof($file))
{
$line = fgets($file);
$date = explode("Draw Date",$line);
array_push($rows,$date[0]);
}
fclose($file);
?>
Thanks everyone this is the code which just downloads the first row of results
while(!feof($file))
{
$line = fgets($file);
$date = explode("Draw Date",$line);
array_push($rows,$date[0]);
if(count($rows)>1)
{
break;
}
}
fclose($file);
You can break whenever you don't need more data. In this example when count($rows)>100
while(!feof($file)) {
$line = fgets($file);
$date = explode("Draw Date",$line);
array_push($rows,$date[0]);
if (count($rows)>100)
break;
}
The issue is that your while condition is only met once you've read through to the end of the file. If you only want to get the first N lines you'll need to change that condition. Something like this might help get you started:
$lineCountLimit = 5;
$currentLineCount = 0;
while($currentLineCount < $lineCountLimit)
{
$line = fgets($file);
$date = explode("Draw Date",$line);
array_push($rows,$date[0]);
$currentLineCount++;
}
Please try the following recipe to download only a part of the file, like 10 KBytes first, then split to lines and analyze them. How to partially download a remote file with cURL?
My colleague and I are working on a chat application for a small Flash based game. We would like to keep our chat file as small as possible by automatically deleting old text after the file has reached a certain limit. Say the file exceeds 50 lines, we would like to delete the existing information and begin again at line 1. Is this possible?
<?php
$file = "saved.txt";
$edited_text = $_POST['new_text'];
$open = fopen($file, "a+");
fwrite($open, "\n" . $edited_text);
fclose($open);
?>
Basically something like this:
$lines = file('saved.txt');
$lines[] = 'new line of text';
array_unshift($lines); // remove first array element
file_put_contents('saved.txt', implode(PHP_EOL, $lines));
Read the file into an array, one line per array element
Append your new line(s) of text
Remove as many lines from the start of the array as necessary
dump array back out to file as text.
This would work:
// Read entire file
$lines = file_get_contents('saved.txt');
// Add what you want to the beginning of array
array_unshift($lines, 'new line of text');
// Keep first 50 items
$lines = array_splice($lines, 0, 50);
// Write them back
file_put_contents('saved.txt', implode(PHP_EOL, $lines));
Will always keep the first 50 elements intact (which includes messages from new to old).
I am attempting to insert the data from an uploaded file into a single dimension array.
The file is as such that there is one student number to a line like so:
392232,392231,etc
this is the most common way I've found online:
while (($line = fgetcsv($file, 25, ',')) !== FALSE) {
//$line is an array of the csv elements
print_r($line);
}
However form what I understand this will create an array ($line) for each row. Which is not what I want.
that aside I tried this to see if it is working and my code is not printing out the array after using ftgetcsv(). The file is successfully uploading.
here is my code:
if(isset($_FILES['csv_file']) && is_uploaded_file($_FILES['csv_file']['tmp_name'])){
//create file name
$file_path = "csv_files/" . $_FILES['csv_file']['name'];
//move uploaded file to upload dir
if (!move_uploaded_file($_FILES['csv_file']['tmp_name'], $file_path)) {
//error moving upload file
echo "Error moving uploaded file";
}
print_r($_FILES['csv_file']);
$file = fopen('$file_path', 'r');
while (($line = fgetcsv($file, 25, ',')) !== FALSE) {
//$line is an array of the csv elements
print_r($line);
}
//delete csv file
unlink($file_path);
}
First off, can anyone obviously see why it wouldnt work to at least print them as seperate arrays of data (each row).
Second, is it possible to set it so that it creates a 1d array of all rows in the file?
Many thanks,
Question 1 is because of
print_r($_FILES['csv_file']);
$file = fopen('$file_path', 'r');
should be:
$file = fopen($file_path, 'r');
and for Question 2, check out the array_push
1st Question:
This line will actually try to open a file called '$file_path' because you're using single quotes (so it doesn't expand to the value of the variable). You can just remove the quotes.
$file = fopen('$file_path', 'r');
$file is null after this.
2nd Question:
If all you want to do is convert a file into an array by lines you can use one of these instead:
file() - get whole file into a 1D array of lines of the file (closest to what you want)
fgets() - get a string per line per call; keep calling this until it returns false to get each line one at a time
file_get_contents() - get the whole file into a string and process as you like
According to PHP.net $line has to return as array.
"returns an array containing the fields read."
But if you are sure it's contains only one student number you can use $line[0] to get the first line value (Ignoring the ",")
Here are some general comments on your code:
You are passing the file path into the fopen() function incorrectly. The variable should not be surrounded with single quotes.
Since you are deleting the CSV file after processing it, moving it is unnecessary. Simply use $_FILES['csv_file']['tmp_name'] as the path to the file.
Since there is only one entry per row in your CSV file, simply access the first element of the array that is returned from fgetcsv(): $numbers[] = $line[0];