convert specified value on array from xml to csv in php - php

Question

i want to convert to csv from xml file only the specified values...
XML File:
<?xml version="1.0" encoding="UTF-8"?>
<file>
<PRODUCT sku="12345" price="129"/>
<PRODUCT sku="12356" price="150"/>
<PRODUCT sku="12367" price="160"/>
<PRODUCT sku="12389" price="190"/>
</file>
CSV File.
SKU,PRICE
12345,129
12356,150
12367,160
12389,190
but i want to get the price only for 12345, 12367 and 12389
This is my start file:
<?php
$filexml = 'file.xml';
if (file_exists($filexml)){
$xml = simplexml_load_file($filexml);
$file = fopen('file.csv', 'w');
$header = array('sku', 'price');
fputcsv($file, $header, ',', '"');
foreach ($xml->PRODUCT as $product){
$item = array();
$value1 = $product->attributes()->sku;
$value2 = $product->attributes()->price;
$item[] = $value1;
$item[] = $value2;
fputcsv($file, $item, ',', '"');
}
fclose($file);
}
?>
an option can be this, but is returning me Array, maybe is wrong something there.
<?php
$filexml = 'file.xml';
if (file_exists($filexml)){
$xml = simplexml_load_file($filexml);
$file = fopen('file.csv', 'w');
$header = array('sku', 'price');
$customvalue = array('12345', '12367', '12389');
fputcsv($file, $header, ',', '"');
foreach ($xml->PRODUCT as $product){
$item = array();
$value1 = $product->attributes()->sku;
$value2 = $product->attributes()->price;
$item[] = $customvalue;
$item[] = $value2;
fputcsv($file, $item, ',', '"');
}
fclose($file);
}
?>
Thanks
Ryan Solution:
<?php
$filexml = 'file.xml';
if (file_exists($filexml)){
$xml = simplexml_load_file($filexml);
$file = fopen('file.csv', 'w');
$header = array('sku', 'price');
$customvalue = array('12345', '12367', '12389');
fputcsv($file, $header, ',', '"');
foreach ($xml->PRODUCT as $product){
if ( in_array($product->attributes()->sku, $customvalue ) ) {
$item = array ();
$item[] = $product->attributes()->sku;
$item[] = $product->attributes()->price;
fputcsv($file, $item, ',', '"');
}
fclose($file);
}
?>
but the output is true and good, but i need to remove the unnecessary codes because in large file with about 7000 codes this get a 300mb csv file.
This is the output.
12345,129
12345,129,12356,150
12367,160
12389,190
in large files im getting this:
12345,129
12345,129,123456,150,12367,160
12389,190,123456,150,12367,160,12345,129
12399,200
12399,200,12345,129,12389,160,123456,150
12399,200,12345,129,12389,160,123456,150,12399,200,12345,129,12389,160,123456,150
the specified codes in array are first in the right column, but at the end this is creating a big csv file. and result timeout or memory out.
Thanks

Answer 1

You are on the right track. Add a check to ensure that you read only the specified rows, and simplify the pulling out of the fields you want, something like this (just the foreach loop, the rest while stay the same:
foreach ($xml->PRODUCT as $product){
if ( in_array($product->attributes()->sku, $customvalue ) ) {
$item = array ();
$item[] = $product->attributes()->sku;
$item[] = $product->attributes()->price;
fputcsv($file, $item, ',', '"');
}