I want to create a command line php script which would merge/join multiple CSV files from a folder into one.
Each CSV file has 2 columns delimited by comma (,) but multiple number of rows varies. Also each of the CSV file name is unique so when we merge the CSV files I want the file name of the CSV to be the first column for each rows in the file.
So eventually when the script it run it’ll join multiple CSV files under a folder to one. From 2 columns the output file will have 3 columns where the first column would be the file name.
<?php
$nn = 0;
foreach (glob("*.csv") as $filename) {
if (($handle = fopen($filename, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 0, ",")) !== FALSE) {
$c = count($data);
$csvarray[$nn][] = $filename;
for ($x=0;$x<$c;$x++)
{
$csvarray[$nn][] = $data[$x];
}
$nn++;
}
fclose($handle);
}
}
$fp = fopen('../file.csv', 'w');//output file set here
foreach ($csvarray as $fields) {
fputcsv($fp, $fields);
}
fclose($fp);
?>
I didn't make any test on it though, here is the logic and code you can follow.
Related
I'm trying to delete one line from CSV file by its line number, which I get as a parameter in URL.
I saw some discussions here, but it was mainly "delete a line by its id stored in first column" and so on. I tried to make it in the same way as others in these discussions, but it does not work. I only changed the condition.
if (isset($_GET['remove']))
{
$RowNo = $_GET['remove']; //getting row number
$row = 1;
if (($handle = fopen($FileName, "w+")) !== FALSE)
{
while (($data = fgetcsv($handle, 1000, ";")) !== FALSE)
{
//Here, I don't understand, why this condition does not work.
if ($row != $RowNo)
{
fputcsv($handle, $data, ';');
}
$row++;
}
fclose($handle);
}
}
I supposed, that it should work for me too, BCS just condition was changed. But it does not. It clears the whole file. Could you help me with it, please?
Thank you very much for any advice. Daniel.
You could load the file as an array of lines by using file().
Then remove the line and write the file back.
// read the file into an array
$fileAsArray = file($FileName);
// the line to delete is the line number minus 1, because arrays begin at zero
$lineToDelete = $_GET['remove'] - 1;
// check if the line to delete is greater than the length of the file
if ($lineToDelete > sizeof($fileAsArray)) {
throw new Exception("Given line number was not found in file.");
}
//remove the line
unset($fileAsArray[$lineToDelete]);
// open the file for reading
if (!is_writable($fileName) || !$fp = fopen($fileName, 'w+')) {
// print an error
throw new Exception("Cannot open file ($fileName)");
}
// if $fp is valid
if ($fp) {
// write the array to the file
foreach ($fileAsArray as $line) {
fwrite($fp, $line);
}
// close the file
fclose($fp);
}
If you have a unix system you could also use sed command:
exec("sed -e '{$lineToDelete}d' {$FileName}");
Remember cleaning command parameters if user input used:
https://www.php.net/manual/de/function.escapeshellcmd.php
Option if your CSV can fit to memory:
// Read CSV to memory array
$lines = file($fileName, FILE_SKIP_EMPTY_LINES | FILE_IGNORE_NEW_LINES);
// Remove element from array
unset($lines[$rowNo - 1]); // Validate that element exists!
// Rewrite your CSV file
$handle = fopen($fileName, "w+");
for ($i = 0; $i < count($lines); $i++) {
fputcsv($handle, $data, ';');
}
fclose($handle);
Option if your CSV can not fit to memory:
Use code from question, just write to separate file and later replace it with actual file:
$handle = fopen($FileName, "r");
// Read file wile not End-Of-File
while (!feof($fn)) {
if ($row != $RowNo) {
file_put_contents($FileName . '.tmp', fgets($fn), FILE_APPEND);
}
$row++;
}
fclose($handle);
// Remove old file and rename .tmp to previously removed file
unlink($FileName);
rename($FileName . '.tmp', $FileName);
I'm trying to read only colum with red label in a csv file. Is there a php function to do this or a symfony bundle?
Now I'm reading csv file with fgetcsv function:
foreach($request->files->get('importFile') as $file) {
if (($handle = fopen($file->getRealPath(), "r")) !== FALSE) {
// get the rest of the rows
$data = array();
$i = 0;
while ($row = fgetcsv($handle, 0, ';')) {
if($i>1) {
$data[] = $row;
$i++;
}
print_r($data);die;
}
}
}
But it doesn't read the label's color.Is there a way to read the color on the csv files?
CSV files have no formatting.
.xls or .odt files have formatting, but CSV definitely not - only data are saved in there. Look at the file with a text editor.
You can use this php class to read csv files: https://git.webworks-nuernberg.de/webworks-nuernberg/parsecsv
But cweiske is right, csv hasn't any formatting.
I'm currently opening a TAB delimited file with the following code...
if (($handle = fopen($filetxt, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 0, "\t")) !== FALSE) {
// var_dump($data);
$num = count($data);
echo "<br>\n";
$row++;
for ($c=0; $c < $num; $c++) {
echo $data[$c] . "<br />\n";
}
}
fclose($handle);
}
Now I'm just trying to figure out how I can put the data into a CSV using fputcsv. An example would be great -- right now I'm just trying to get the headers into a CSV and then I can go from there.
The data right now (that's being echoed) looked like this...
part_number
aaia_part_term_id
short_description
bullet_points
list_price
jobber_price
base_price
epc_code
length
width
height
weight
image_name
If I could just figure out how to echo only the header into the CSV, I think I can figure out the rest.
fopen only gives you a handle to the file. A csv file's formatting relies going through each line, the way you are reading the file uses all contents at once, try:
<?PHP
if($handle = fopen($filetext, "r") !== FALSE){
while (!feof($handle)) {
$line_of_text = fgets($handle);
foreach( fgetcsv($line_of_text, 0, "\t") as $csv_item)
print $csv_item."," ;
print "<br>";
}
fclose($handle);
}
?>
I haven't tested this
Since a CSV file is just a comma delimited data file, it might be simpler just to read the current tab-delimited file line by line, and replace tabs with commas
if (($handle = #fopen($filetxt, "r")) !== false) {
while (($line = fgets($handle, 0)) !== false) {
$csv_line = str_replace("\t", ",", $line);
// write $csv_line to your csv file
}
fclose($handle);
}
There are many CSV file like the following:a.csv, b.csv, aab.csv etc.
They hold the same column and header. Now I want to put all the csv data into whole.csv. With only one header. How can I do it?
a.csv data:
header1 title post.....
test who posand
b.csv data:
header1 title post.....
head she pnow
etc .....
The whole.csv will contain all the csv data.
eg:
header1 title post.....
head she pnow
test who posand
I tried the following code.but not get I want to:
$csvs = glob("*.csv");
foreach($csvs as $csv) {
$row = 1;
if (($handle = fopen($csv, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$fp = fopen("whole.csv", 'w');
fputcsv($fp, $data);
$row++;
}
fclose($handle);
}
}
I have put all CSV files in the same directory.
For every input csv file you are opening the resultant csv file in write mode:
$fp = fopen("whole.csv", 'w');
which wipes the content of the whole.csv!!
You need to open the whole.csv file just once outside the loop and keep writing into it.
$csvs = glob("*.csv");
$fp = fopen("whole.csv", 'w');
foreach($csvs as $csv) {
$row = 1;
if (($handle = fopen($csv, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
fputcsv($fp, $data);
$row++;
}
fclose($handle);
}
}
Have a look at file_put_contents.
You would open each CSV file, then use file_put_contents passing whole.csv as the $filename parameter, the file handle as the $data parameter and use the FILE_APPEND flag to tell it to append the contents instead of overwriting.
there are two columns in my csv file,eg:
image gallery
/1.jpg /a.jpg;/b.jpg
..... .....
now i want to update the gallery content to /1.jpg;/a.jpg;/b.jpg. namely,add the content of image collumn and ; to the gallery content.
the following is my code.when i run it. it can't update the content of the csv.i am get stucked.
$dir = getcwd();
$files = scandir($dir);
foreach ($files as $file) {
$parts = pathinfo($file);
if ($parts['extension']!="csv") {
continue;
}
if (($handle = fopen($file, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 4096, ",")) !== FALSE) {
$data[1]=$data[0].";".$data[1];
fputcsv($file, $data);
}
fclose($handle);
}
open file in write or append mode and
fputcsv expects first parameter to be resource and you have given file path
which is causing problem
change it
fputcsv($handle, $data);
Please check the file permission first and after that you have to change the handle to both read and write and also please check whether the data[1] is having the values.
Because in Your code the the data[0] only will fetch the lines as a string which is separated with ";" so you have to explode it and after that do the operations.