note 92063 deleted from function.substr by danbrown

From: Date: Mon, 20 Jun 2011 15:28:14 +0000
Subject: note 92063 deleted from function.substr by danbrown
References: 1  Groups: php.notes 
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Note Submitter: erez at meezoog dot com ---- An improvement to substrws - multi-byte, and closes tags better. /** * word-sensitive substring function with html tags awareness * @param text The text to cut * @param len The maximum length of the cut string * @returns string **/ function mb_substrws( $text, $len=180 ) { if( (mb_strlen($text) > $len) ) { $whitespaceposition = mb_strpos($text," ",$len)-1; if( $whitespaceposition > 0 ) { $chars = count_chars(mb_substr($text, 0, ($whitespaceposition+1)), 1); if ($chars[ord('<')] > $chars[ord('>')]) $whitespaceposition = mb_strpos($text,">",$whitespaceposition)-1; $text = mb_substr($text, 0, ($whitespaceposition+1)); } // close unclosed html tags if( preg_match_all("|<([a-zA-Z]+)|",$text,$aBuffer) ) { if( !empty($aBuffer[1]) ) { preg_match_all("|</([a-zA-Z]+)>|",$text,$aBuffer2); if( count($aBuffer[1]) != count($aBuffer2[1]) ) { foreach( $aBuffer[1] as $index => $tag ) { if( empty($aBuffer2[1][$index]) || $aBuffer2[1][$index] != $tag) $text .= '</'.$tag.'>'; } } } } } return $text; }

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