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<?php
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/**
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* Minify html
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*
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* Based on PeecFW HTMLCompressor
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*
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* @param string $html HTML content to be minified
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*
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* @return string minified HTML content
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*/
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function minify_html_function($html) {
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if ( ! strstr($html, '<html') || ! strstr($html, '</html>')) {
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return $html;
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}
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preg_match_all("!<style[^>]+>.*?</style>!is", $html, $match);
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$styles = $match[0];
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preg_match_all("!<script[^>][^<src>]+>.*?</script>!is", $html, $match); // Modified, do not skip script tags with src in it..
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$scripts = $match[0];
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preg_match_all("!<pre[^>]*>.*?</pre>!is", $html, $match);
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$pre = $match[0];
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preg_match_all("!<textarea[^>]+>.*?</textarea>!is", $html, $match);
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$textareas = $match[0];
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$search = array("!<style[^>]+>.*?</style>!is", "!<script[^>][^<src>]+>.*?</script>!is", "!<pre[^>]*>.*?</pre>!is", "!<textarea[^>]+>.*?</textarea>!is");
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$replace = array('@TRIM:STYLE@', '@TRIM:SCRIPT@', '@TRIM:PRE@', '@TRIM:TEXTAREA@');
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$html = str_replace('<br>', '<br />', $html); // XHTML valid br tags must be done
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$html = str_replace('<BR>', '<br />', $html); // XHTML valid br tags must be done
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$html = trim(preg_replace(array('/((?<!\?>)\n)[\s]+/m', '/\>\s+\</'), array('\1', '><'), $html));
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// Printer library relys on comment
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//$html = preg_replace('/<!--[^<[if>](.|\s)*?-->/', '', $html); // Remove html comments...
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$html = preg_replace($search, $replace, $html);
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$searches = array('@TRIM:STYLE@' => $styles, '@TRIM:SCRIPT@' => $scripts, '@TRIM:PRE@' => $pre, '@TRIM:TEXTAREA@' => $textareas);
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foreach ($searches as $search => $replace ) {
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$len = strlen($search);
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$pos = 0;
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$count = count($replace);
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if ($count < 1){
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continue;
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}
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for ($i = 0; $i < $count; $i++) {
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if (($pos = strpos($html, $search, $pos)) !== FALSE) {
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$html = substr_replace($html, $replace[$i], $pos, $len);
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} else {
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continue;
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}
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}
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}
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return $html;
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}
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/* End of file: ./system/functions/minify_html/minify_html_function.php */
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Page URI: http://www.infopotato.com/index.php/code/function/minify_html/