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[](https://travis-ci.org/cssjanus/php-cssjanus) [](https://packagist.org/packages/cssjanus/cssjanus) # CSSJanus Convert CSS stylesheets between left-to-right and right-to-left. ## Basic usage ```php $rtlCss = CSSJanus::transform( $ltrCss ); ``` ## Advanced usage ``transform( $css, $swapLtrRtlInURL = false, $swapLeftRightInURL = false )`` * ``$css`` (string) Stylesheet to transform * ``$swapLtrRtlInURL`` (boolean) Swap 'ltr' and 'rtl' in URLs * ``$swapLeftRightInURL`` (boolean) Swap 'left' and 'right' in URLs ### Preventing flipping Use a ```/* @noflip */``` comment to protect a rule from being changed. ```css .rule1 { /* Will be converted to margin-right */ margin-left: 1em; } /* @noflip */ .rule2 { /* Will be preserved as margin-left */ margin-left: 1em; } ``` ## Port This is a PHP port of the Node.js implementation of CSSJanus. Feature requests and bugs related to the actual CSS transformation or test cases of it, should be submitted upstream at <https://github.com/cssjanus/cssjanus>. Upstream releases will be ported here.