dlundgren/css-splitter

PHP Css Splitter for IE 4096 selector limit

1.0.0 2015-10-08 02:44 UTC

Requires

• php: >=5.3.0

Requires (Dev)

• phpunit/phpunit: 3.7.*

MIT

• David Lundgren

• css splitter

README

Splits stylesheets that go beyond the IE limit of 4096 selectors. See this MSDN blog post for more information about this.

Installation

It's recommended to use Composer to install

$ composer require dlundgren/php-css-splitter

This will install the CssSplitter library and any required dependencies.

Usage

The default max selectors is 4095.

$splitter = new \CssSplitter\Splitter();
// Load your css file
$css = file_get_contents('styles.css');

// Skip the first part as the Internet Explorer interprets your css until it reaches the limit
$selector_count = $splitter->countSelectors($css) - 4095;
// Calculate how many additional parts we need to create
$additional_part_count =  ceil($selector_count / 4095);

if($additional_part_count > 0) {
	// Loop and create the additional parts
	// Add an offset of two as we are creating the css from the second part on
	for($part = 2; $part < $additional_part_count + 2; $part++) {
		// Create or update the css files
		file_put_contents('styles_'. $part .'.css', $splitter->split($css, $part));
	}
}

Credits & License

Original inspiration came from the Ruby gem CssSplitter.

CssSplitter is licensed under the MIT license. See License File for more information.