PHP/HTML/CSS - If FireFox, If Chrome, If Safari

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迷失自我
迷失自我 2021-02-04 07:32

Is there a simple conditional statement, css command, html, jquery, javascript or simple PHP dynamic way of detecting the current browser?


           


        
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  • 2021-02-04 07:42

    With CSS there is no way you can achieve browser detection. However with PHP, ASP and other programming languages you can get browser detection within the page. I am not here to tell you the pro or cons about it - I take it you know about the bad and good about browser detection and web standards but here is the list.

    PHP solution.

    if(isset($_SERVER['HTTP_USER_AGENT'])){
        $agent = $_SERVER['HTTP_USER_AGENT'];
    }
    

    Then, compare it to what you want

    For compare with, for example "firefox" you should do:

    if(strlen(strstr($agent,"Firefox")) > 0 ){      
        $browser = 'firefox';
    }
    if($browser=='firefox'){
        echo '<style type="text/css">.element{top:2px}';
    }
    

    jQuery solution.

    // Safari CSS and Webkit Google Chrome
    if ($.browser.webkit) {
       $("#element").css('top', '2px');
    } else if ( $.browser.safari ) //not fully supported on 1.7 jQuery {
       $("#element").css('top', '2px');
    // Opera CSS
    } else if ( $.browser.opera ) {
       $("#element").css('top', '2px');
    // Internet Explorer CSS
    } else if ( $.browser.msie ) {
       $("#element").css('top', '2px');
    // Mozilla FireFox CSS
    } else if ( $.browser.mozilla ) {
       $("#element").css('top', '2px');
    // Normal Revert, careful and note your the use of !important
    } else {
       $("#element").css('top', '2px');
       // You can have normal JavaScript between these too
       document.getElementById("element").style.top="2px";
    }
    

    Mootools solution.

    if (Browser.ie){
        // This code will only run in IE
    }
    
    if (Browser.firefox2){
        // This code will only run in Firefox 2
    }
    if (Browser.firefox){
        // This code will only run in Firefox 
    } 
    if (Browser.chrome){
        // This code will only run in Chrome
    } 
    if (Browser.opera){
        // This code will only run in Chrome
    }   
    if (Browser.ie6 || Browser.ie7){
        // Please upgrade your browser
    }
    // Also notice you can use Engine.trident
    if(Browser.Engine.trident) {
    
    }
    

    Prototype solution.

    if(Prototype.Browser.IE){
      // do something IE specific
    }
    if(Prototype.Browser.Opera){
      // do something Opera specific
    }
    if(Prototype.Browser.WebKit){
      // do something WebKit specific
    }
    if(Prototype.Browser.MobileSafari){
      // do something MobileSafari specific - iPhone etc
    }
    if(Prototype.Browser.Gecko){
      // do something Gecko specific
    }
    
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  • 2021-02-04 07:50

    Using javascript:

    navigator.appCodeName
    

    Stores the browser codename:

    navigator.appName
    

    Is the name of the browser.

    But I would recommend using jQuery for more efficiency and less headaches:

    if ($.browser.webkit) {
       $("#div ul li").css( "display","inline-table" );
    } else if ( $.browser.msie ) {
       $("#div ul li").css( "display","inline" );
    } else {
       $("#div ul li").css( "display","inline-table" );
    }
    

    EDIT: According to jQuery.com:

    • webkit (Chrome and Safari)

    • safari (deprecated)

    • opera

    • msie (Internet Explorer)

    • mozilla (Firefox)

    Source: JQuery Site

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  • 2021-02-04 07:51

    To do this with CSS only.

    You can target Firefox with this 'hack':

    @-moz-document url-prefix() {...}
    

    And Chrome & Safari together like this:

    @media screen and (-webkit-min-device-pixel-ratio:0) {...}
    

    But not necessarily recommended...

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  • 2021-02-04 07:59

    In php you can use this code to detect browsers

    <?php
      $msie = strpos($_SERVER["HTTP_USER_AGENT"], 'MSIE') ? true : false;
      $firefox = strpos($_SERVER["HTTP_USER_AGENT"], 'Firefox') ? true : false;
      $safari = strpos($_SERVER["HTTP_USER_AGENT"], 'Safari') ? true : false;
      $chrome = strpos($_SERVER["HTTP_USER_AGENT"], 'Chrome') ? true : false;
    ?>
    
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