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Run-time CSS Minifier

/ Published in: PHP
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Usage is in the source, it is pretty self explanatory :)

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Copy this code and paste it in your HTML 
  1. //Usage
  2. <link rel="stylesheet" type="text/css" href="minify.php?css=styles.css" />
  3.  
  4.  
  5. //minify.php
  6. <?php
  7. header( "Content-type: text/css" );
  8.  
  9. $file = isset( $_GET[ 'css' ] ) ? $_GET[ 'css' ] : '';
  10. if( !file || array_pop( split( '\.', $file ) ) != 'css' || strpos( $file, '/' ) !== false )
  11. 	die( 'Invalid Parameters' );
  12.  
  13. $content = @file_get_contents( $file );
  14. echo minify( $content );
  15.  
  16. function minify( $css ) {
  17. 	$css = preg_replace( '#\s+#', ' ', $css );
  18. 	$css = preg_replace( '#/\*.*?\*/#s', '', $css );
  19. 	$css = str_replace( '; ', ';', $css );
  20. 	$css = str_replace( ': ', ':', $css );
  21. 	$css = str_replace( ' {', '{', $css );
  22. 	$css = str_replace( '{ ', '{', $css );
  23. 	$css = str_replace( ', ', ',', $css );
  24. 	$css = str_replace( '} ', '}', $css );
  25. 	$css = str_replace( ';}', '}', $css );
  26.  
  27. 	return trim( $css );
  28. }
  29. ?>

URL: http://www.lateralcode.com/css-minifier/

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