headerHelper/headerHelper.php at master · jokerrs/headerHelper · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
<?php
/**
 * @author Jeremic Nemanja nemanja@joker.rs
 * @license GNU
 * @version 0.0.9
 */
/**
 * @param string|NULL $title
 * @param string|NULL $description
 * @param string|NULL $keywords
 * @param string|NULL $type
 * @param string|NULL $image
 * @param string|NULL $url
 * @param string|NULL $robots
 * @param array|NULL $css
 * @return string
 */
function headerHelper(
    ?string $title = null,
    ?string $description = null,
    ?string $keywords = null,
    ?string $type = null,
    ?string $image = null,
    ?string $url = null,
    ?string $robots = null,
    ?array $css = null
): ?string
{
    $return = null;
    if (isset($title)) {
        $return .= "<meta name=\"title\" content=\"$title\">\n";
        $return .= "<meta property=\"og:title\" content=\"$title\">\n";
        $return .= "<meta itemprop=\"name\" content=\"$title\">\n";
        $return .= "<meta name=\"twitter:title\" content=\"$title\">\n";
    }
    if (isset($description)) {
        $return .= "<meta name=\"description\" content=\"$description\">\n";
        $return .= "<meta itemprop=\"description\" content=\"$description\">\n";
        $return .= "<meta property=\"og:description\" content=\"$description\">\n";
        $return .= "<meta name=\"twitter:description\" content=\"$description\">\n";
    }
    if (isset($keywords)) {
        $return .= "<meta name=\"keywords\" content=\"$keywords\">\n";
        $return .= "<meta property=\"og:keywords\" content=\"$keywords\">\n";
    }
    if (isset($type)) {
        $return .= "<meta property=\"og:type\" content=\"$type\">\n";
    }
    if (isset($image)) {
        $return .= "<meta property=\"og:image\" content=\"$image\">\n";
        $return .= "<meta property=\"image\" content=\"$image\">\n";
        $return .= "<meta property=\"twitter:image\" content=\"$image\">\n";
    }
    if ($url === null) {
        $url .= $_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['SERVER_NAME'];
    }
    if ($_SERVER['REQUEST_URI'] !== '/') {
        $url .= $_SERVER['REQUEST_URI'];
    } else {
        $url .= DIRECTORY_SEPARATOR;
    }
    $return .= "<meta property=\"og:url\" content=\"$url\">\n";
    $return .= "<meta name=\"twitter:url\" content=\"$url\">\n";
    $return .= "<meta name=\"twitter:card\" content=\"summary\">\n";
    if (isset($robots)) {
        $return .= "<meta name=\"robots\" content=\"$robots\">\n";
    }
    if (!isset($title)) {
        $title = $url;
    }
    $return .= "<title>$title</title>\n";
    if (isset($css) && is_array($css)) {
        foreach ($css as $css_url) {
            $return .= "<link rel=\"stylesheet\" type=\"text/css\" href=\"$css_url\">\n";
        }
    }
    return $return;
}