How to do category mapping from csv? - php

I have a csv form which I have to make the category mapping. I had let this csv read from controller.And, I am trying to establish a hierarchy .So, that I can map . But , I am not able to do that. Please help!
[link:https://pricefalls.zendesk.com/hc/en-us/articles/204287645-How-do-I-create-a-category-map- “Pricefalls Category Taxonomy”].My csv has the same pattern as shown in the given link.
public function actionReadcsv()
{
$row = 1;
$csvFile = Yii::getAlias('#frontend') . '/modules/pricefalls /csv/Pricefalls_Categories1.csv';
if (($handle = fopen($csvFile, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, "|")) !== FALSE) {
$row++;
$create_category[] =$data;
}
Pricefallscategories::categorytree($create_category);
echo "<pre>";
print_r($create_category);
echo"</pre>";
fclose($handle);
}
}

Related

PHP: Remove a row from a CSV if ID occurs multiple times and a column has a specific value

I have data as below in a CSV file. The green lines are what I'd like to keep.
Basically if someone has a single line, I want to keep it.
If they have multiple lines, I want to remove any where the 3rd column is A - Fully Fit.
After running through the whole file, I then want to save it over the original.
I tried writing the code but not sure if it's a Friday but the logic is escaping me at the moment.
There could be just a single line or there could be dozens. So if an ID has 1000 rows, I would just want to delete the rows for that ID where the 4th column is "A - Fully Fit"
UPDATE
This code works but not sure if it's the most optimal
// DECLARE ARRAYS
$a = Array();
$b = Array();
$c = Array();
// LOOP THROUGH FILE AND COLLECT DUPLICATES
if (($handle = fopen($filename, "r")) !== FALSE) {
while (($line = fgetcsv($handle, 4096, ",")) !== FALSE) {
$a[$line[1]][] = 'SHAKKA';
}
foreach ($a as $k=>$v) {
if (count($v)>1) {
$b[] = $k;
}
}
}
// IF A DUPLICATE THEN REMOVE ROWS THAT ARE 'A - Fully Fit'
if (($handle = fopen($filename, "r")) !== FALSE) {
while (($golly = fgetcsv($handle, 4096, ",")) !== FALSE) {
if (in_array($golly[1],$b) && $golly[3] == 'A - Fully Fit') {
}
else {
$c[] = $golly;
}
}
}
fclose($handle);
// WRITE THE FILE
$fp = fopen($filename, 'wa+');
foreach ($c as $fields) {
fputcsv($fp, $fields);
}
fclose($fp);
<?php
if (($handle = fopen($filename, "r")) !== FALSE) {
$new_rows = [];
$hash_ids = [];
while (($line = fgetcsv($handle, 4096, ",")) !== FALSE) {
if($line[3] === 'A - Fully Fit'){
if(isset($hash_ids[$line[1]])) continue;
$hash_ids[$line[1]] = true;
}
$new_rows[] = $line;
}
fclose($handle);
// WRITE TO THE FILE
$fp = fopen($filename, 'wa+');
foreach ($new_rows as $current_row) {
fputcsv($fp,$current_row);
}
fclose($fp);
}
In the above code, we maintain a hash(associative array) for each ID. If we have already come across with an ID with A - Fully Fit, then we skip the row, else we add it to the list.

Saving specific columns of CSV to another CSV file in PHP

so trying to read a csv file and extracting details from the file and wish to store specific columns of the csv to another csv file.
I have managed to extract the specific columns of the input csv file but not really sure how I can write those extracted columns to another csv file.
Here is the part of my work:
$row = 1;
if (($handle = fopen("testtable.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
echo $data[0] . "\n" . $data[1] . "<br />\n";
}
$file = fopen("editedTable.csv","w");
foreach ( $data as $line) { //working on this part of the code
fputcsv($file, explode(',',$line));
}
fclose($handle);
}
Obviously there is an error in the foreach loop as I am trying to work out the logic.
The data that is extracted is basically first and the second column (data[0], data[1]). Just need this to write to another CSV file. The input csv is just a comma delimited file with 5 columns. Any idea how I can modify the foreach loop and the use the fputcsv method?
Thanks
fputcsv accepts an array on the second parameter.
I think this is what you looking for:
<?php
$file = fopen("editedTable.csv","w");
$row = 1;
if (($handle = fopen("testtable.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000)) !== FALSE) {
$num = count($data);
$row++;
echo $data[0] . "\n" . $data[1] . "<br />\n";
fputcsv($file, [$data[0], $data[1]]);
}
}
fclose($handle);
fclose($file);
Because you place the fputs outside of the $data initial loop, you catch only one row, here is the modified code.
$row = 1;
$file = fopen("editedTable.csv","w");
if (($handle = fopen("testtable.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
echo $data[0] . "\n" . $data[1] . "<br />\n";
$line = $data[0].", ".$data[1];
$line .= "\n";
fputs($file, $line);
}
fclose($handle);
}
fclose($file);

combine echoes to echo a string as valid html

<?php
// link to Google Docs spreadsheet
$url='https://docs.google.com/spreadsheets/d/1_4d-MPxTUOVZbxTOlhjXv1ebTlBPQ-_JrYUlS1rqX5Q/pub?output=csv';
// open file for reading
if (($handle = fopen($url, "r")) !== FALSE)
{
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
{
$totalrows = count($data);
for ($row=0; $row<=$totalrows; $row++)
{
if ( (strlen($data[$row])>0))
{
echo '<dt><span class="icon"></span>'.$data[$row].'</dt><dd>'.$data[$answer].'</dd>';
}
}
}
fclose($handle);
}
?>
So I have this code that takes each cell from a google sheets file but It echoes them one at a time. I need to concatenate them into one string and pass that string to a js script so I need to echo them all at once. I don't know much php so I'm having a hard time deciphering the echo line.
You can define a variable and append strings to it:
<?php
// link to Google Docs spreadsheet
$url='https://docs.google.com/spreadsheets/d/1_4d-MPxTUOVZbxTOlhjXv1ebTlBPQ-_JrYUlS1rqX5Q/pub?output=csv';
// Define variable which will hold your data.
$html = "";
// open file for reading
if (($handle = fopen($url, "r")) !== FALSE)
{
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
{
$totalrows = count($data);
for ($row=0; $row<=$totalrows; $row++)
{
if ( (strlen($data[$row])>0))
{
// Append your data to $html variable
$html .= '<dt><span class="icon"></span>'.$data[$row].'</dt><dd>'.$data[$answer].'</dd>';
}
}
}
fclose($handle);
}
//Do whatever you want with $html variable.
?>

get a column data into a text file one by one?

the csv data as the following:
(first line) price url
(second line) $10 src="http://www.test.com/1455/"||src="http://www.test.com/image/1456/"||
(third line) $20 src="http://www.test.com/2260/"||src="http://www.test.com/2261/"||
.... ........
now i want to put all the data from the url column into a text file. and shows the data one by one. namely:
http://www.test.com/1455/
http://www.test.com/image/1456/
http://www.test.com/2260/
http://www.test.com/2261/
....
now,i am stucked.
a, i don't know how to prevent outputting the first line.
b,i don't know how to get the url, and put them i a text file one by one.
first i using the following code to output the data to the screen.
$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
echo $data[1] . "<br />\n";
}
fclose($handle);
}
the above code also output the first line (url). i don't want to output it. how should i do.
thank you.
You're very close! I have modified your code just slightly to do what you're trying to do. Essentially you need a second file handler for the output. You can open that as append mode so that write append to the end of the file. As for not echoing the header, you just make sure that row is greater than the first row. Hope it helps!
$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE && ($handle2 = fopen("output.txt", 'a')) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
if($row > 1) {
fwrite($handle2, "{$data[1]}\n");
}
$row++;
}
fclose($handle);
fclose($handle2);
}
// Skips the first line of the CSV - outputting the second "column" of data.
$row = 0;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
if ($row > 0 ) {
echo $data[1] . "<br />\n";
}
$row++;
}
fclose($handle);
}

How to add columns to CSV using PHP

I need to add columns to an existing csv file ,but i can't find any solution to the problem.I have used "\t" and chr(9) to create columns but no success so please help me by providing me the right solution if any one can
Try this, and have a look at fgetcsv() and fputcsv() in the manual
<?php
$newCsvData = array();
if (($handle = fopen("test.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$data[] = 'New Column';
$newCsvData[] = $data;
}
fclose($handle);
}
$handle = fopen('test.csv', 'w');
foreach ($newCsvData as $line) {
fputcsv($handle, $line);
}
fclose($handle);
?>
Could you try using \r\n instead of \n ?

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