Source code for https://slumpartikel.toolforge.org/

index.php

<?php
/**
 * Created by User:Prolineserver
 * Released under GPL per the following statement
 * https://sv.wikipedia.org/w/index.php?title=Anv%C3%A4ndardiskussion:Prolineserver&oldid=53364425#Licens_f%C3%B6r_Slumpartikel
 * @license GPL-3.0-or-later
 */

if(isset($_REQUEST['source'])){
	if(intval($_REQUEST['source']) == 1) {
		show_source(__FILE__);
	}
}
$servername = "svwiki.labsdb";
$database = "svwiki_p";

// sets $username and $password
include_once '../.password.php';

$conn = new mysqli($servername, $username, $password, $database);
if ($conn->connect_error) {
	die("Connection failed: " . $conn->connect_error);
}
$i = 0;
$article_found = false;
while($i < 100) {
	$i++;
	$random = mt_rand() / mt_getrandmax();
	$query = "SELECT page_id, page_title
	FROM page
	WHERE page_namespace = 0
	 AND page_is_redirect = 0
	 AND page_random >= {$random}
	ORDER BY page_random
	LIMIT 1";
	if(!$res = $conn->query($query)){
		die('There was an error running the query [' . $conn->error . ']');
	}
	$res->data_seek(0);
	$page = $res->fetch_assoc();
	$query = "SELECT page.page_id,page_title
	FROM categorylinks
	JOIN page ON categorylinks.cl_to = page.page_title
	 AND page.page_namespace = 14
	WHERE categorylinks.cl_from = {$page['page_id']}";
	if(!$res = $conn->query($query)){
		die('There was an error running the query [' . $conn->error . ']');
	}
	$categories = array();
	$category_ids = array();
	while($row = $res->fetch_assoc()){
		if($row['page_title'] == 'Robotskapade_artiklar') {
			continue 2;
		}
		$categories[] = $row;
		$category_ids[] = $row['page_id'];
	}
	if(count($category_ids) == 0) {
		$article_found = true;
		break;
	}
	$category_ids = implode(', ', $category_ids);
	$query = "SELECT cl_to
	FROM categorylinks
	WHERE categorylinks.cl_from IN ({$category_ids})";
	if(!$res = $conn->query($query)){
		die('There was an error running the query [' . $conn->error . ']');
	}
	while($row = $res->fetch_assoc()){
		if($row['cl_to'] == 'Robotskapade_artiklar') {
			continue 2;
		}
	}
	$article_found = true;
	break;
}
$conn->close();
$mobile = '';
if(isset($_REQUEST['mobile'])){
	if(intval($_REQUEST['mobile']) == 1) {
		$mobile = 'm.';
	}
}
if($article_found) {
	header("Location: https://sv.{$mobile}wikipedia.org/wiki/".$page['page_title']);
} else {
	header("Location: https://sv.{$mobile}wikipedia.org/");
}
?>