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Extending client script

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dev-master 2014-06-11 11:39 UTC

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Last update: 2023-03-13 18:18:30 UTC


Yii 1.1.x or above


EClientScript (an extension for Yii's CClientScript)

This is an optimizing client script manager for Yii framework, that can minify and combine CSS/JS files.

It will automatically detects changes in file content (based on modification time) and generates a unique file name accordingly.

This will reduce the HTTP calls for resources files by merging several resources filesinto a single (or more) files.

Since version of 1.5, also support conditional loading js/css file in IE browser, see example codes please.

The source code is hosted under github:


####Css Files: CSS files are merged based on there media attribute, background images with a relative path in file can also be displayed correctly.

####Script files: Script files are merged based on their position, If you use the 'CClientScript::POS_HEAD' you will end up with a single file for all the script files you've used on that page.

If you use 'CClientScript::POS_HEAD' and 'CClientScript::POS_END' for example then you'll end up with two files for each page on that request, becuase those resources are located in different positions.

####File optmization (EXPERIMENTAL, @since: 1.1) CssMin used to optimize merged css file. You can set property 'optmizeCssFiles' of the component to enable this feature. JSMinPlus used to optimize merged script file. You can set property 'optmizeScriptFiles' of the component to enable this feature.


  1. Using this extension is as simple as adding the following code to the application configuration under the components array:

      'clientScript' => array(
        'class' => 'application.vendors.yii-EClientScript.EClientScript',
        'combineScriptFiles' => !YII_DEBUG, // By default this is set to true, set this to true if you'd like to combine the script files
        'combineCssFiles' => !YII_DEBUG, // By default this is set to true, set this to true if you'd like to combine the css files
        'optimizeScriptFiles' => !YII_DEBUG,	// @since: 1.1
        'optimizeCssFiles' => !YII_DEBUG, // @since: 1.1
        'optimizeInlineScript' => false, // @since: 1.6, This may case response slower
        'optimizeInlineCss' => false, // @since: 1.6, This may case response slower

    Then you can use the regular 'registerScriptFile' & 'registerCssFile' methods as normal and the files will be combined or optimized automatically.

  2. Using to conditional loading js/css file for IE browser, you just need to specify the media property.

    $cs = Yii::app()->clientScript;
    // result to: <!--[if lt IE 9]><script src="/js/html5.js"></script><![endif]-->
    $cs->registerScriptFile('/js/html5.js', CClientScript::POS_HEAD, array('media' => 'lt IE 9'));
    // result to: <!--[if lte IE 6]><link rel="stylesheet" type="text/css" href="bootstrap/css/ie.css" /><![endif]-->
    $cs->registerCssFile('/css/ie.css', 'lte IE 6');


If you registered some external resource files that not in the web application root directory, they will be kept and not combined. Compression or optmization is a EXPERIMENTAL feature, please use it carefully(@since: 1.1)


Aug 13, 2013

  • New version number 1.6
  • Fixed bug for merging minified scripts, they may be missing a semicolon at the end
  • Add support to optimize inline css/js codes

Aug 2, 2013

  • Fixed load order of non-combined css files.

Mar 29, 2013

  • New version number 1.5
  • Compatiable with the 3rd parameter of registerScript and registerScriptFile
  • Add support for conditional loading js/css file in IE.
  • Prepend the base url of current request when register a script/css file with relative path

Mar 27, 2013 (by Muayyad Alsadi)

  • New version number 1.4
  • update JSMinPlus, CssMin
  • use stronger hash for file names
  • consider modification time for calculating hash
  • enable all features by default

Dec 06, 2010

  • Fixed problem for css files that begin with @charset "xxx", it should be in the first line of file and not repeatly.
  • Add support for theme resource files.

Nov 23, 2010

  • Skip the minimization of files whose names include .pack.
  • Add the last modification time as the QUERY_STRING to merged file, to avoid not properly flush the browser cache when the file updated.

Nov 6, 2010

  • New version number 1.3
  • Not repeat the minimization of Javascript codes those who have been minimized, whose names include .min.
  • Fixed getRelativeUrl() platform compatibility issue. (thanks to Troto)

Known Issues:

When some resource files can not be merged and they are strictly dependent on loading order, then may have some problems.

Reporting Issue:

Reporting Issues and comments are welcome, please report issues to https://github.com/muayyad-alsadi/yii-EClientScript/issues