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, $data);
Please check the file permission first and after that you have to change the handle to both read and write and also please check whether the data[1] is having the values.
Because in Your code the the data[0] only will fetch the lines as a string which is separated with ";" so you have to explode it and after that do the operations.
Related
I'm trying to delete one line from CSV file by its line number, which I get as a parameter in URL.
I saw some discussions here, but it was mainly "delete a line by its id stored in first column" and so on. I tried to make it in the same way as others in these discussions, but it does not work. I only changed the condition.
if (isset($_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', $FileName);
I need to make CSV file upload for eshop. I have goods in CSV files. They have images defined for example: http://www.servername/pictures/pic1.jpg
I am finding any function, I need that script upload a CSV (solved), open CSV and explode by ",[coma]" (solved), the script go to the link with image [another server], download it and save it into directory at my server.
Colleges helped me, that I should use get_file_contents() function, but on php.net in manual I find another things. How can I solve this problem?
Please try this
if (($handle = fopen("upload/myCSV.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$imageUrl = $data[1];
$contents = file_get_contents(trim($imageUrl));
if ($contents) {
file_put_contents('/path/to/save/pic.jpg', $contents);
}
fclose($handle);
}
In myCSV.csv file data is
"1","http://imagesus.homeaway.com/mda01/5fe39690-1cbf-469d-8525-b946ad1f4ba7.1.10"
The basic procedure is:
// get the image data
$image = file_get_contents('http://www.servername/pictures/pic1.jpg');
// write the image data
$fp = fopen('path_to_your_image_folder/pic1.jpg', 'w'); //not URL
fwrite($fp, $image);
fclose($fp);
You will probably have to add some validation checks to check if the folder is writable, if there is content in $image and so on.
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.
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 $data parameter and use the FILE_APPEND flag to tell it to append the contents instead of overwriting.
supposed there is a folder named example, and in it there are some csv file eg(a.csv, b.csv....).
the test.php directory is the same as example folder. now i want to pass all the csv file name to the following if condition. namely, replace test.csv with all the csv file name
if (($handle = fopen("test.csv", "r"))
how do i do?
i using the following code:
$files= glob("./example/*.csv");
if (($handle = fopen("$files", "r"))
but it doesn't work. thank you.
$files is an array, you need to loop with it.
$files = glob("./example/*.csv");
foreach($files as $filepath) {
if ($handle = fopen($filepath, "r")) {
// ...
}
}