| 1 | <?php |
| 2 | class userAgent { |
| 3 | // userAgent PHP class |
| 4 | // get user agent and tell us what Browser is accessing |
| 5 | // |
| 6 | // function userAgent([$ua_string]) |
| 7 | // CONSTRUCTOR; reads UA string (or takes the optional given UA string) and gets info from that into our variables. |
| 8 | // |
| 9 | // var $uastring |
| 10 | // the plain User Agent string |
| 11 | // var $brand |
| 12 | // returns the User Agent brand name |
| 13 | // var $version |
| 14 | // the User Agent version |
| 15 | // |
| 16 | // function isns() |
| 17 | // returns true if User Agent seems to be Netscape brand, false if not |
| 18 | // function isns4() |
| 19 | // returns true if User Agent seems to be Netscape Communicator 4.x, false if not |
| 20 | // function isie() |
| 21 | // returns true if User Agent seems to be a version of Internet Exploder, false if not |
| 22 | // function geckobased() |
| 23 | // returns true if User Agent seems to be a Gecko-based browser, false if not |
| 24 | // function geckodate() |
| 25 | // returns the Gecko date when it's a Gecko-based browser, 0 if not |
| 26 | // function khtmlbased() |
| 27 | // returns true if User Agent seems to be a KHTML-based browser, false if not |
| 28 | |
| 29 | // collection of some known User Agent Strings: |
| 30 | // Mozilla/5.0 (compatible; Konqueror/3; Linux 2.4.18; X11; i686) |
| 31 | // Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.3b) Gecko/20030114 |
| 32 | // Mozilla/4.0 (compatible; MSIE 5.0; Windows 95; DigExt) |
| 33 | // Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Win 9x 4.90) |
| 34 | // Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) |
| 35 | // Mozilla/4.75 [de] (Win98; U) |
| 36 | // Opera/5.12 (Windows 2000; U) [de] |
| 37 | // Mozilla/5.0 (Windows; U; Win 9x 4.90; de-DE; m18) Gecko/20010131 Netscape6/6.01 |
| 38 | // Mozilla/5.0 (Windows; U; Windows NT 5.1; de-DE; rv:1.0.1) Gecko/20020823 Netscape/7.0 |
| 39 | // Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/51 (like Gecko) Safari/51 |
| 40 | // Lynx/2.8.4rel.1 libwww-FM/2.14 SSL-MM/1.4.1 OpenSSL/0.9.6g |
| 41 | // Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.0.1) Gecko/20021109 Chimera/0.6+ |
| 42 | // Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:1.3a) Gecko/20021207 Phoenix/0.5 |
| 43 | // Mozilla/5.0 Galeon/1.2.7 (X11; Linux i686; U;) Gecko/20021204 |
| 44 | // Mozilla/4.0 (compatible; MSIE 5.0; Windows XP) Opera 6.05 [ja] |
| 45 | // Mozilla/4.0 (compatible; MSIE 5.12; Mac_PowerPC) OmniWeb/4.1.1-v424.6 |
| 46 | |
| 47 | var $uastring; |
| 48 | var $brand; |
| 49 | var $version; |
| 50 | |
| 51 | function userAgent($ua_string = "") { |
| 52 | // *** constructor *** |
| 53 | if (strlen($ua_string)) { |
| 54 | $this->uastring = $ua_string; |
| 55 | } |
| 56 | else { |
| 57 | // read raw UA string |
| 58 | $this->uastring = $_SERVER["HTTP_USER_AGENT"]; |
| 59 | } |
| 60 | |
| 61 | // get UA brand and version |
| 62 | $this->brand = "Unknown"; $this->version = 0; |
| 63 | if (ereg("([0-9a-zA-Z\.]+)/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 64 | $this->brand = $regs[1]; // this is a reasonable default :) |
| 65 | $this->version = $regs[2]; // this is a reasonable default :) |
| 66 | } |
| 67 | if (ereg("Netscape6/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 68 | $this->brand = "Netscape"; |
| 69 | $this->version = $regs[1]; |
| 70 | } |
| 71 | elseif (ereg("Netscape/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 72 | $this->brand = "Netscape"; |
| 73 | $this->version = $regs[1]; |
| 74 | } |
| 75 | elseif (ereg("Chimera/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 76 | $this->brand = "Chimera"; |
| 77 | $this->version = $regs[1]; |
| 78 | } |
| 79 | elseif (ereg("Phoenix/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 80 | $this->brand = "Phoenix"; |
| 81 | $this->version = $regs[1]; |
| 82 | } |
| 83 | elseif (ereg("Galeon/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 84 | $this->brand = "Galeon"; |
| 85 | $this->version = $regs[1]; |
| 86 | } |
| 87 | elseif (ereg("rv:([0-9a-zA-Z\.+]+)", $this->uastring, $regs) && strstr($this->uastring, "Mozilla/") && strstr($this->uastring, "Gecko/")) { |
| 88 | $this->brand = "Mozilla"; |
| 89 | $this->version = $regs[1]; |
| 90 | } |
| 91 | elseif (ereg("Opera[ /]([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 92 | $this->brand = "Opera"; |
| 93 | $this->version = $regs[1]; |
| 94 | } |
| 95 | elseif (ereg("OmniWeb/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 96 | $this->brand = "OmniWeb"; |
| 97 | $this->version = $regs[1]; |
| 98 | } |
| 99 | elseif (ereg("Konqueror/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 100 | $this->brand = "Konqueror"; |
| 101 | $this->version = $regs[1]; |
| 102 | } |
| 103 | elseif (ereg("Safari/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 104 | $this->brand = "Safari"; |
| 105 | $this->version = $regs[1]; |
| 106 | } |
| 107 | elseif (ereg("AppleWebKit/([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 108 | $this->brand = "AppleWebKit"; |
| 109 | $this->version = $regs[1]; |
| 110 | } |
| 111 | elseif (ereg("MSIE ([0-9a-zA-Z\.+]+)", $this->uastring, $regs)) { |
| 112 | $this->brand = "Microsoft Internet Explorer"; |
| 113 | $this->version = $regs[1]; |
| 114 | } |
| 115 | elseif (ereg("Mozilla/([0-9a-zA-Z\.+]+)", $this->uastring, $regs) && !strstr($this->uastring, "compatible;") && !strstr($this->uastring, "Gecko/")) { |
| 116 | $this->brand = "Netscape"; |
| 117 | $this->version = $regs[1]; |
| 118 | if (intval($this->version) == 4) { $this->brand .= " Communicator"; } |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | function isns() { |
| 123 | // set it static so that we don't have to call it that often |
| 124 | static $is_ns; |
| 125 | if (!isset($is_ns)) { |
| 126 | $is_ns = false; |
| 127 | if (strstr($this->brand, "Netscape")) { |
| 128 | $is_ns = true; |
| 129 | } |
| 130 | } |
| 131 | return $is_ns; |
| 132 | } |
| 133 | |
| 134 | function isns4() { |
| 135 | // set it static so that we don't have to call it that often |
| 136 | static $is_ns4; |
| 137 | if (!isset($is_ns4)) { |
| 138 | $is_ns4 = false; |
| 139 | if (strstr($this->brand, "Netscape") && (intval($this->version) == 4)) { |
| 140 | $is_ns4 = true; |
| 141 | } |
| 142 | } |
| 143 | return $is_ns4; |
| 144 | } |
| 145 | |
| 146 | function isie() { |
| 147 | // set it static so that we don't have to call it that often |
| 148 | static $is_ie; |
| 149 | if (!isset($is_ie)) { |
| 150 | $is_ie = false; |
| 151 | if (strstr($this->brand, "Internet Explorer")) { |
| 152 | $is_ie = true; |
| 153 | } |
| 154 | } |
| 155 | return $is_ie; |
| 156 | } |
| 157 | |
| 158 | function geckobased() { |
| 159 | // set it static so that we don't have to call it that often |
| 160 | static $is_gecko; |
| 161 | if (!isset($is_gecko)) { |
| 162 | $is_gecko = false; |
| 163 | if (strstr($this->uastring, "Gecko/")) { |
| 164 | $is_gecko = true; |
| 165 | } |
| 166 | } |
| 167 | return $is_gecko; |
| 168 | } |
| 169 | |
| 170 | function geckodate() { |
| 171 | // set it static so that we don't have to call it that often |
| 172 | static $gdate; |
| 173 | if (!isset($gdate)) { |
| 174 | $gdate = 0; |
| 175 | if (ereg("Gecko/([0-9]+)", $this->uastring, $regs)) { |
| 176 | $gdate = $regs[1]; |
| 177 | } |
| 178 | } |
| 179 | return $gdate; |
| 180 | } |
| 181 | |
| 182 | function khtmlbased() { |
| 183 | // set it static so that we don't have to call it that often |
| 184 | static $is_khtml; |
| 185 | if (!isset($is_khtml)) { |
| 186 | $is_khtml = false; |
| 187 | if (strstr($this->brand, "Konqueror") || strstr($this->brand, "Safari") || strstr($this->brand, "AppleWebKit")) { |
| 188 | $is_khtml = true; |
| 189 | } |
| 190 | } |
| 191 | return $is_khtml; |
| 192 | } |
| 193 | } |
| 194 | ?> |