$config['enable_hooks'] = TRUE;

// Compress output $hook['display_override'][] = array( 'class' => '', 'function' => 'compress', 'filename' => 'compress.php', 'filepath' => 'hooks' );

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); function compress() { ini_set("pcre.recursion_limit", "16777"); $CI =& get_instance(); $buffer = $CI->output->get_output(); $re = '%# Collapse whitespace everywhere but in blacklisted elements.  (?> # Match all whitespans other than single space.  [^\S ]\s* # Either one [\t\r\n\f\v] and zero or more ws,  | \s{2,} # or two or more consecutive-any-whitespace.  ) # Note: The remaining regex consumes no text at all...  (?= # Ensure we are not in a blacklist tag.  [^<]*+ # Either zero or more non-"<" {normal*}  (?: # Begin {(special normal*)*} construct  < # or a < starting a non-blacklist tag.  (?!/?(?:textarea|pre|script)\b)  [^<]*+ # more non-"<" {normal*}  )*+ # Finish "unrolling-the-loop"  (?: # Begin alternation group.  < # Either a blacklist start tag.  (?>textarea|pre|script)\b  | \z # or end of file.  ) # End alternation group.  ) # If we made it here, we are not in a blacklist tag.  %Six'; $new_buffer = preg_replace($re, " ", $buffer); // We are going to check if processing has working if ($new_buffer === null)	{ $new_buffer = $buffer;	} $CI->output->set_output($new_buffer); $CI->output->_display(); } /* End of file compress.php */ /* Location: ./system/application/hooks/compress.php */

$CI =& get_instance(); $buffer = $CI->output->get_output(); $search = array( '/\>[^\S ]+/s', //strip whitespaces after tags, except space '/[^\S ]+\</s', //strip whitespaces before tags, except space '/(\s)+/s' // shorten multiple whitespace sequences ); $replace = array( '>', '<', '\\1' ); $buffer = preg_replace($search, $replace, $buffer); $CI->output->set_output($buffer); $CI->output->_display();

$CI =& get_instance(); $buffer = $CI->output->get_output(); $options = array( 'clean' => true, 'hide-comments' => true, 'indent' => true ); $buffer = tidy_parse_string($buffer, $options, 'utf8'); tidy_clean_repair($buffer); // warning: if you generate XML, HTML Tidy will break it (by adding some HTML: doctype, head, body..) if not configured properly $CI->output->set_output($buffer); $CI->output->_display();