stripwhitespace.php

<?php
/* ---------------------------------
26 January, 2008 - 2:55pm:
<!-- http://websitetips.com/articles/optimization/html/crunch/ -->
Adapted for WebsiteTips.com by Shirley Kaiser, SKDesigns skdesigns.com.

The example below is adapted from a post by londrum 8:29 pm on June 7, 2007:
<!-- http://www.webmasterworld.com/php/3361456.htm -->
"crunch up your HTML into a single line
a handy little script..."

This PHP code goes at the very TOP of the PHP-enabled HTML webpage
above EVERYTHING else. Recommendation: use a PHP include file for this
to have only one file to maintain.
--------------------------------- */
function stripwhitespace($bff){
$pzcr=0;
$pzed=strlen($bff)-1;
$rst="";
while($pzcr<$pzed){
$t_poz_start=stripos($bff,"<textarea",$pzcr);
if($t_poz_start===false){
$bffstp=substr($bff,$pzcr);
$temp=stripBuffer($bffstp);
$rst.=$temp;
$pzcr=$pzed;
}
else{$bffstp=substr($bff,$pzcr,$t_poz_start-$pzcr);
$temp=stripBuffer($bffstp);
$rst.=$temp;
$t_poz_end=stripos($bff,"</textarea>",$t_poz_start);
$temp=substr($bff,$t_poz_start,$t_poz_end-$t_poz_start);
$rst.=$temp;
$pzcr=$t_poz_end;
}
}
return $rst;
}

function stripBuffer($bff){
/* carriage returns, new lines */
$bff=str_replace(array("\r\r\r","\r\r","\r\n","\n\r","\n\n\n","\n\n"),"\n",$bff);
/* tabs */
$bff=str_replace(array("\t\t\t","\t\t","\t\n","\n\t"),"\t",$bff);
/* opening HTML tags */
$bff=str_replace(array(">\r<a",">\r <a",">\r\r <a","> \r<a",">\n<a","> \n<a","> \n<a",">\n\n <a"),"><a",$bff);
$bff=str_replace(array(">\r<b",">\n<b"),"><b",$bff);
$bff=str_replace(array(">\r<d",">\n<d","> \n<d",">\n <d",">\r <d",">\n\n<d"),"><d",$bff);
$bff=str_replace(array(">\r<f",">\n<f",">\n <f"),"><f",$bff);
$bff=str_replace(array(">\r<h",">\n<h",">\t<h","> \n\n<h"),"><h",$bff);
$bff=str_replace(array(">\r<i",">\n<i",">\n <i"),"><i",$bff);
$bff=str_replace(array(">\r<i",">\n<i"),"><i",$bff);
$bff=str_replace(array(">\r<l","> \r<l",">\n<l","> \n<l",">  \n<l","/>\n<l","/>\r<l"),"><l",$bff);
$bff=str_replace(array(">\t<l",">\t\t<l"),"><l",$bff);
$bff=str_replace(array(">\r<m",">\n<m"),"><m",$bff);
$bff=str_replace(array(">\r<n",">\n<n"),"><n",$bff);
$bff=str_replace(array(">\r<p",">\n<p",">\n\n<p","> \n<p","> \n <p"),"><p",$bff);
$bff=str_replace(array(">\r<s",">\n<s"),"><s",$bff);
$bff=str_replace(array(">\r<t",">\n<t"),"><t",$bff);
/* closing HTML tags */
$bff=str_replace(array(">\r</a",">\n</a"),"></a",$bff);
$bff=str_replace(array(">\r</b",">\n</b"),"></b",$bff);
$bff=str_replace(array(">\r</u",">\n</u"),"></u",$bff);
$bff=str_replace(array(">\r</d",">\n</d",">\n </d"),"></d",$bff);
$bff=str_replace(array(">\r</f",">\n</f"),"></f",$bff);
$bff=str_replace(array(">\r</l",">\n</l"),"></l",$bff);
$bff=str_replace(array(">\r</n",">\n</n"),"></n",$bff);
$bff=str_replace(array(">\r</p",">\n</p"),"></p",$bff);
$bff=str_replace(array(">\r</s",">\n</s"),"></s",$bff);
/* other */
$bff=str_replace(array(">\r<!",">\n<!"),"><!",$bff);
$bff=str_replace(array("\n<div")," <div",$bff);
$bff=str_replace(array(">\r\r \r<"),"><",$bff);
$bff=str_replace(array("> \n \n <"),"><",$bff);
$bff=str_replace(array(">\r</h",">\n</h"),"></h",$bff);
$bff=str_replace(array("\r<u","\n<u"),"<u",$bff);
$bff=str_replace(array("/>\r","/>\n","/>\t"),"/>",$bff);
$bff=ereg_replace(" {2,}",' ',$bff);
$bff=ereg_replace("  {3,}",'  ',$bff);
$bff=str_replace("> <","><",$bff);
$bff=str_replace("  <","<",$bff);
/* non-breaking spaces */
$bff=str_replace(" &nbsp;","&nbsp;",$bff);
$bff=str_replace("&nbsp; ","&nbsp;",$bff);
/* Example of EXCEPTIONS where I want the space to remain
between two form buttons at */
/* <!-- http://websitetips.com/articles/copy/loremgenerator/ --> */
/* name="select" /> <input */
$bff=str_replace(array("name=\"select\" /><input"),"name=\"select\" /> <input",$bff);

return $bff;
}
ob_start("stripwhitespace");
?>