YGGo! Distributed Web Search Engine
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1.5 KiB

2 years ago
<?php
class Filter {
static public function url(string $url) {
return trim(urldecode($url));
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}
static public function pageTitle(string $title) {
$title = preg_replace('/[\s]+/', ' ', $title);
$title = trim($title);
return $title;
}
static public function pageDescription(string $description) {
$description = preg_replace('/[\s]+/', ' ', $description);
$description = trim($description);
return $description;
}
static public function pageKeywords(string $keywords) {
$keywords = preg_replace('/[\s]+/', ' ', $keywords);
$keywords = trim($keywords);
return $keywords;
}
static public function pageData(string $data) {
$filterDataPre = [
'/<script.*?\/script>/s',
'/<style.*?\/style>/s'
];
$filterDataPost = [
'/[\s]{2,}/',
];
$data = preg_replace($filterDataPre, ' ', $data);
$data = html_entity_decode($data);
$data = strip_tags($data);
$data = preg_replace($filterDataPost, ' ', $data);
return $data;
}
static public function searchQuery(string $query, string $mode = 'default') {
if ($mode == 'default') {
$query = str_replace(['\\', '/', '~', '@', '!', '"', '(', ')'], ['\\\\', '\/', '\~', '\@', '\!', '\"', '\(', '\)'], $query);
}
$query = trim($query);
return $query;
}
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static public function plural(int $number, array $texts) {
$cases = array (2, 0, 1, 1, 1, 2);
return $texts[(($number % 100) > 4 && ($number % 100) < 20) ? 2 : $cases[min($number % 10, 5)]];
}
}