Collect PHP using regular filters to filter various tags, spaces, line breaks code:
$str =preg_replace ("/\s+/", "", $str); Filter Excess Return
$str =preg_replace ("/<[]+/si", "<", $str); Filter <__ (with spaces behind the "<" sign)
$str =preg_replace ("/<\!–.*?–>/si", "", $str); Comments
$str =preg_replace ("/< (\!. *?) >/si "," ", $str); Filter DOCTYPE
$str =preg_replace ("/< (\/?html.*?) >/si "," ", $str); Filter HTML Tags
$str =preg_replace ("/< (\/?head.*?) >/si "," ", $str); Filter head Tags
$str =preg_replace ("/< (\/?meta.*?) >/si "," ", $str); Filter META Tags
$str =preg_replace ("/< (\/?body.*?) >/si "," ", $str); Filter Body Tags
$str =preg_replace ("/< (\/?link.*?) >/si "," ", $str); Filter Link Tags
$str =preg_replace ("/< (\/?form.*?) >/si "," ", $str); Filter form Labels
$str =preg_replace ("/cookie/si", "Cookie", $str); Filter Cookie Tags
$str =preg_replace ("/< (applet.*?) > (. *?) < (\/applet.*?) >/si "," ", $str); Filter applet Tags
$str =preg_replace ("/< (\/?applet.*?) >/si "," ", $str); Filter applet Tags
$str =preg_replace ("/< (style.*?) > (. *?) < (\/style.*?) >/si "," ", $str); Filter style Labels
$str =preg_replace ("/< (\/?style.*?) >/si "," ", $str); Filter style Labels
$str =preg_replace ("/< (title.*?) > (. *?) < (\/title.*?) >/si "," ", $str); Filter title Tags
$str =preg_replace ("/< (\/?title.*?) >/si "," ", $str); Filter title Tags
$str =preg_replace ("/< (object.*?) > (. *?) < (\/object.*?) >/si "," ", $str); Filter Object Tags
$str =preg_replace ("/< (\/?objec.*?) >/si "," ", $str); Filter Object Tags
$str =preg_replace ("/< (noframes.*?) > (. *?) < (\/noframes.*?) >/si "," ", $str); Filter Noframes Labels
$str =preg_replace ("/< (\/?noframes.*?) >/si "," ", $str); Filter Noframes Labels
$str =preg_replace ("/< (i?frame.*?) > (. *?) < (\/i?frame.*?) >/si "," ", $str); Filter Frame Tags
$str =preg_replace ("/< (\/?i?frame.*?) >/si "," ", $str); Filter Frame Tags
$str =preg_replace ("/< (script.*?) > (. *?) < (\/script.*?) >/si "," ", $str); Filter script Tags
$str =preg_replace ("/< (\/?script.*?) >/si "," ", $str); Filter script Tags
$str =preg_replace ("/javascript/si", "JavaScript", $STR); Filter script Tags
$str =preg_replace ("/vbscript/si", "VBScript", $STR); Filter script Tags
$str =preg_replace ("/on ([a-z]+) \s*=/si", "on\\1=", $str); Filter script Tags
$str =preg_replace ("/&#/si", "a", $str); Filter script Tags
