Specific Array to CSV file - php

Question

I have a problem with sending data from a table to a CSV file.
Array
[link1] => HTTP Code
[link2] => HTTP Code
[link3] => HTTP Code
[link4] => HTTP Code
I need to send the data to a CSV file so that the links do not recur.
Unfortunately, I don't know how to send link after link (I work in a foreach loop) to extract each of these links and send it to CSV, and at the same time check that already did not show up.
This is my code:
require('simple/simple_html_dom.php');
$xml = simplexml_load_file('https://www.gutscheinpony.de/sitemap.xml');
$fp = fopen('Links2.csv', 'w');
set_time_limit(0);
$links=[];
foreach ($xml->url as $link_url)
{
$url = $link_url->loc;
$data=file_get_html($url);
$data = strip_tags($data,"<a>");
$d = preg_split("/<\/a>/",$data);
foreach ( $d as $k=>$u ){
if( strpos($u, "<a href=") !== FALSE ){
$u = preg_replace("/.*<a\s+href=\"/sm","",$u);
$u = preg_replace("/\".*/","",$u);
if ( strpos($u, "http") !== FALSE) {
$ch = curl_init($u);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if(strpos($u, "https://www.gutscheinpony.de/") !== FALSE )
$u = substr($u, 28);
if($u == "/")
$u = $url;
}
$links[$u] = $http_code;
$wynik = array( array($u, $url , $http_code));
foreach ($wynik as $fields) {
fputcsv($fp, $fields);
}
}
}
}
curl_close($ch);
fclose($fp);
echo 'Send to CSV file successfully completed ... ';
I need get every link from .xml, download links that are on the same page and specify the HTTP status. This part I have done. I can't only appropriate way to send data to a CSV file.
I'm counting on your help.

Answer 1

The code below is essentially your code with a few modifications. There was also the observation that :// does not seem acceptable as part of PHP Array Keys.
<?php
require __DIR__ . '/simple/simple_html_dom.php';
$xml = simplexml_load_file('https://www.gutscheinpony.de/sitemap.xml');
$fp = fopen(__DIR__ . '/Links2.csv', 'w');
set_time_limit(0);
$links = [];
$status = false;
foreach ($xml->url as $link_url){
$url = $link_url->loc;
$data = file_get_html($url);
$data = strip_tags($data,"<a>");
$d = preg_split("/<\/a>/",$data);
foreach ( $d as $k=>$u ){
$http_code = 404;
if( strpos($u, "<a href=") !== FALSE ){
$u = preg_replace("/.*<a\s+href=\"/sm","",$u);
$u = preg_replace("/\".*/","",$u);
if ( strpos($u, "http") !== FALSE) {
// JUST GET THE CODE ON EACH ITERATION,
// OPENING THE STREAM & CLOSING IT AGAIN ON EACH ITERATION...
$http_code = getHttpCodeStatus($u);
if(strpos($u, "https://www.gutscheinpony.de/") !== FALSE ){
$u = substr($u, 28);
}
if($u == "/") {
$u = $url;
}
// THIS COULD BE A BUG... USING :// AS PART OF AN ARRAY KEY SEEMS NOT TO WORK
$links[str_replace("://", "_", $u)] = $http_code;
// RUN THE var_dump(), TO VIEW THE PROCESS AS IT PROGRESSES IF YOU WISH TO
var_dump($links);
$status = fputcsv($fp, array($u, $url , $http_code));
}
}
}
}
fclose($fp);
if($status) {
echo count($links) . ' entries were successfully processed and written to disk as a CSV File... ';
}else{
echo 'It seems like some entries were not successfully written to disk - at least the last entry... ';
}
function getHttpCodeStatus($u){
$ch = curl_init($u);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
return $http_code;
}