1 | <?php
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2 | // ccBrowserInfo.php -- A PHP class for HTTP client user agent detection.
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3 | // by Chip Chapin <cchapin@chipchapin.com>
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4 | // Visit my home page at http://www.chipchapin.com
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5 | // Visit the ccBrowserInfo home page:
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6 | // http://www.chipchapin.com/WebTools/OtherTools/ccBrowserInfo/
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7 |
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8 | // ccBrowserInfo.php was inspired by browser.php in SourceForge 2.5.
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9 | // Other important influences:
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10 | // sniffer.js from Netscape and
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11 | // phpSniff (http://phpsniff.sourceforge.net/), which offers more
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12 | // functions and greater control, but is too elaborate for my taste.
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13 |
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14 | // ccBrowserInfo does NOT try to be rigorous. Our primary goal is to distinguish
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15 | // between older NN and IE, and between Windows and Mac (and Unix).
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16 | // A useful list of older browser strings is here:
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17 | // http://www.browserlist.browser.org/browser_mappings_list_big.html
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18 | // See also the built-in pull-down list in the phpSniff example:
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19 | // http://phpsniff.sourceforge.net/
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20 |
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21 | // Revision History
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22 | // 2002-01-01 cchapin Creation
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23 | // 2002-11-02 cchapin Initial Public release (v1.0)
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24 |
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25 | // +-----------------------------------------------------------------------+
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26 | // | Copyright (c) 2002 Chip Chapin <cchapin@chipchapin.com> |
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27 | // | http://www.chipchapin.com |
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28 | // | All rights reserved. |
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29 | // | |
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30 | // | Redistribution and use in source and binary forms, with or without |
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31 | // | modification, are permitted provided that the following conditions |
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32 | // | are met: |
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33 | // | |
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34 | // | o Redistributions of source code must retain the above copyright |
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35 | // | notice, this list of conditions and the following disclaimer. |
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36 | // | o Redistributions in binary form must reproduce the above copyright |
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37 | // | notice, this list of conditions and the following disclaimer in the |
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38 | // | documentation and/or other materials provided with the distribution.|
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39 | // | o The names of the authors may not be used to endorse or promote |
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40 | // | products derived from this software without specific prior written |
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41 | // | permission. |
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42 | // | |
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43 | // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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44 | // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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45 | // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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46 | // | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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47 | // | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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48 | // | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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49 | // | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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50 | // | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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51 | // | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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52 | // | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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53 | // | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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54 | // | |
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55 | // +-----------------------------------------------------------------------+
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56 | // | Author: Chip Chapin <cchapin@chipchapin.com> |
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57 | // +-----------------------------------------------------------------------+
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58 |
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59 | class ccBrowserInfo
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60 | {
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61 | var $agent='unknown';
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62 | var $ver=0;
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63 | var $majorver=0;
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64 | var $minorver=0;
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65 | var $platform='unknown';
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66 | var $debug=false;
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67 |
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68 | function get_agent() { return $this->agent; }
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69 | function get_version() { return $this->ver; }
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70 | function get_platform() { return $this->platform; }
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71 | function is_mac() { return $this->platform == 'Mac'; }
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72 | // function is_windows() { return $this->platform == 'Win'; }
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73 | function is_win() { return $this->platform == 'Win'; }
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74 | function is_ie() { return $this->agent == 'IE'; }
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75 | function is_ie3() { return $this->is_ie() && $this->majorver < 4; }
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76 | function is_ie4() { return $this->is_ie() && $this->majorver == 4; }
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77 | function is_ie5up() { return $this->is_ie() && $this->majorver >= 5; }
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78 | // function is_netscape() { return $this->agent == 'MOZILLA'; }
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79 | function is_moz() { return $this->agent == 'MOZILLA'; }
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80 | // function is_netscape4() { return $this->agent == 'MOZILLA' && $this->majorver <= 4; }
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81 | function is_moz4dn() { return $this->agent == 'MOZILLA' && $this->majorver <= 4; }
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82 | function is_moz5() { return $this->agent == 'MOZILLA' && $this->majorver == 5; }
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83 | function is_moz5up() { return $this->agent == 'MOZILLA' && $this->majorver >= 5; }
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84 | // function is_winNN() { return ($this->is_windows() && $this->is_netscape());}
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85 | function is_winNN() { return ($this->is_win() && $this->is_moz4dn());}
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86 | function is_macNN() { return ($this->is_mac() && $this->is_moz4dn());}
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87 |
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88 | // This item relates to browser functionality, not identification.
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89 | // It really belongs elsewhere.
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90 | function transparentFlashOK() {
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91 | return $this->is_ie5up() && $this->is_windows();
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92 | }
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93 |
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94 | // Constructor
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95 | // Determine client browser type, version and platform using
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96 | // heuristic examination of user agent string.
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97 | // @param $ua allows override of user agent string for testing.
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98 | function ccBrowserInfo( $ua=0 )
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99 | {
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100 | if (empty($ua)) $ua = $_SERVER['HTTP_USER_AGENT'];
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101 | $useragent = strtolower($ua);
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102 |
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103 | // Determine browser and version
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104 | // The order in which we test the agents patterns is important
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105 | // Intentionally ignore Konquerer. It should show up as Mozilla.
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106 | // post-Netscape Mozilla versions using Gecko show up as Mozilla 5.0
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107 | if (preg_match( '/(opera |opera\/)([0-9]*).([0-9]{1,2})/', $useragent, $matches)) ;
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108 | elseif (preg_match( '/(msie )([0-9]*).([0-9]{1,2})/', $useragent, $matches)) ;
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109 | elseif (preg_match( '/(mozilla\/)([0-9]*).([0-9]{1,2})/', $useragent, $matches)) ;
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110 | else {
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111 | $matches[1] = 'unknown'; $matches[2]=0; $matches[3]=0;
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112 | }
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113 | switch ($matches[1]) {
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114 | case 'opera/':
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115 | case 'opera ': $this->agent='OPERA'; break;
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116 | case 'msie ': $this->agent='IE'; break;
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117 | case 'mozilla/': $this->agent='MOZILLA'; break;
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118 | case 'unknown': $this->agent='OTHER'; break;
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119 | default: $this->agent='Oops!';
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120 | }
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121 | $this->majorver=$matches[2];
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122 | $this->minorver=$matches[3];
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123 | $this->ver=$matches[2].'.'.$matches[3];
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124 |
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125 | // Determine platform
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126 | // This is very incomplete for platforms other than Win/Mac
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127 | if (preg_match( '/(win|mac|linux|unix)/', $useragent, $matches)) ;
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128 | else $matches[1] = 'unknown';
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129 | switch ($matches[1]) {
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130 | case 'win': $this->platform='Win'; break;
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131 | case 'mac': $this->platform='Mac'; break;
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132 | case 'linux': $this->platform='Linux'; break;
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133 | case 'unix': $this->platform='Unix'; break;
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134 | case 'unknown': $this->platform='Other'; break;
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135 | default: $this->platform='Oops!';
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136 | }
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137 |
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138 | if ($this->debug) $this-showme();
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139 | } // ccBrowserInfo constructor
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140 |
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141 |
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142 | function showme()
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143 | {
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144 | echo "\n\nAgent String: " . $_SERVER['HTTP_USER_AGENT'] . "<br>\n";
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145 | echo "\nis Windows: " . ($this->is_win()?'true':'false') . "<br>\n";
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146 | echo "\nis Mac: " . ($this->is_mac()?'true':'false') . "<br>\n";
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147 | echo "\nis IE: " . ($this->is_ie()?'true':'false') . "<br>\n";
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148 | echo "\nis IE5up: " . ($this->is_ie5up()?'true':'false') . "<br>\n";
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149 | echo "\nis NN: " . ($this->is_moz4dn()?'true':'false') . "<br>\n";
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150 | echo "\nis Moz5up: " . ($this->is_moz5up()?'true':'false') . "<br>\n";
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151 | echo "\nPlatform: " . $this->get_platform() . "<br>\n";
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152 | echo "\nVersion: " . $this->get_version() . "<br>\n";
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153 | echo "\nAgent: " . $this->get_agent() . "<br>\n";
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154 | } // showme
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155 |
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156 | } // class ccBrowserInfo
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157 |
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158 | ?>
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