Online CSS Minifier/Compressor. Free! Provides an API. Simple Quick and Fast.
<?php // setup the URL and read the CSS from a file $url = 'https://cssminifier.com/raw'; $css = file_get_contents('styles.css'); // init the request, set various options, and send it $ch = curl_init(); curl_setopt_array($ch, [ CURLOPT_URL => $url, CURLOPT_RETURNTRANSFER => true, CURLOPT_POST => true, CURLOPT_HTTPHEADER => ["Content-Type: application/x-www-form-urlencoded"], CURLOPT_POSTFIELDS => http_build_query([ "input" => $css ]) ]); $minified = curl_exec($ch); // finally, close the request curl_close($ch); // output the $minified css echo $minified; ?>
Thanks to Boudewijn van Breukelen for an updated version of the above code.
Also, Toni Almeida has made a PHP library to easily talk to CSS Minifier : https://github.com/promatik/PHP-JS-CSS-Minifier.
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I'd love to add more examples in your favourite programming language, so feel free to send them my way. Email andychilton at that gmail place in the sky or tweet to me @andychilton.