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| Code | |||||
//Algorithm contributed by Richard Lynch at <lynch@lscorp.com> Function fill_paragraphs($text, $wrap=80, $break="\n") { // break the text into paragraphs by stripping off any newline characters $paragraphs = split("\n+", "$text"); // format one paragraph at a time for ($i = 0; $i < sizeof($paragraphs); $i++) { $paragraphs[$i] = textwrap($paragraphs[$i], $wrap, $break); } // concatenate the formatted paragraphs into a single string // with a newline character between each element return implode("\n", $paragraphs); } // Contributed by Richard Lynch: <lynch@lscorp.com>. Function textwrap($text, $wrap=80, $break="\n"){ $len = strlen($text); if ($len > $wrap){ $h = ''; // massaged text $lastWhite = 0; // position of last whitespace char $lastChar = 0; // position of last char $lastBreak = 0; // position of last break // while there is text to process while ($lastChar < $len){ $char = substr($text, $lastChar, 1); // get the next character // if we are beyond the wrap boundry and there is a place to break if (($lastChar - $lastBreak > $wrap) && ($lastWhite > $lastBreak)){ $h .= substr($text, $lastBreak, ($lastWhite - $lastBreak)) . $break; $lastChar = $lastWhite + 1; $lastBreak = $lastChar; } // You may wish to include other characters as valid whitespace... if ($char == ' ' || $char == chr(13) || $char == chr(10)){ $lastWhite = $lastChar; // note the position of the last white space } $lastChar = $lastChar + 1; // advance the last character position by one } $h .= substr($text, $lastBreak); // build line } else{ $h = $text; // in this case everything can fit on one line } return $h; } | |||||
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