3 * Creates common globals for the rest of WordPress
5 * Sets $pagenow global which is the current page. Checks
6 * for the browser to set which one is currently being used.
8 * Detects which user environment WordPress is being used on.
9 * Only attempts to check for Apache and IIS. Two web servers
10 * with known permalink capability.
15 // On which page are we ?
17 // wp-admin pages are checked more carefully
18 preg_match('#/wp-admin/?(.*?)$#i', $PHP_SELF, $self_matches);
19 $pagenow = $self_matches[1];
20 $pagenow = trim($pagenow, '/');
21 $pagenow = preg_replace('#\?.*?$#', '', $pagenow);
22 if ( '' === $pagenow || 'index' === $pagenow || 'index.php' === $pagenow ) {
23 $pagenow = 'index.php';
25 preg_match('#(.*?)(/|$)#', $pagenow, $self_matches);
26 $pagenow = strtolower($self_matches[1]);
27 if ( '.php' !== substr($pagenow, -4, 4) )
28 $pagenow .= '.php'; // for Options +Multiviews: /wp-admin/themes/index.php (themes.php is queried)
31 if ( preg_match('#([^/]+\.php)([?/].*?)?$#i', $PHP_SELF, $self_matches) )
32 $pagenow = strtolower($self_matches[1]);
34 $pagenow = 'index.php';
37 // Simple browser detection
38 $is_lynx = $is_gecko = $is_winIE = $is_macIE = $is_opera = $is_NS4 = $is_safari = $is_chrome = $is_iphone = false;
40 if ( isset($_SERVER['HTTP_USER_AGENT']) ) {
41 if ( strpos($_SERVER['HTTP_USER_AGENT'], 'Lynx') !== false ) {
43 } elseif ( stripos($_SERVER['HTTP_USER_AGENT'], 'chrome') !== false ) {
45 } elseif ( stripos($_SERVER['HTTP_USER_AGENT'], 'safari') !== false ) {
47 } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Gecko') !== false ) {
49 } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false && strpos($_SERVER['HTTP_USER_AGENT'], 'Win') !== false ) {
51 } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false && strpos($_SERVER['HTTP_USER_AGENT'], 'Mac') !== false ) {
53 } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== false ) {
55 } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Nav') !== false && strpos($_SERVER['HTTP_USER_AGENT'], 'Mozilla/4.') !== false ) {
60 if ( $is_safari && stripos($_SERVER['HTTP_USER_AGENT'], 'mobile') !== false )
63 $is_IE = ( $is_macIE || $is_winIE );
68 * Whether the server software is Apache or something else
69 * @global bool $is_apache
71 $is_apache = (strpos($_SERVER['SERVER_SOFTWARE'], 'Apache') !== false || strpos($_SERVER['SERVER_SOFTWARE'], 'LiteSpeed') !== false);
74 * Whether the server software is IIS or something else
75 * @global bool $is_IIS
77 $is_IIS = (strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false || strpos($_SERVER['SERVER_SOFTWARE'], 'ExpressionDevServer') !== false);
80 * Whether the server software is IIS 7.X
81 * @global bool $is_iis7
83 $is_iis7 = (strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS/7.') !== false);