Convert simple text in full html.Image links will convert in <IMG> tagsUrl links will convert in <A> tags

autoText

<?php

/**
 * Convert simple text to full html
 * Image links will convert in <IMG> tags
 * Url links will convert in <A> tags
 * 
 * @param string $str the text to convert
 * @param string $cssClass css class for tags
 * @param boolean $strip_tags init strip html tags
 * @return string
 */
function autoText($str, $cssClass = "", $strip_tags = true) {
  if (empty($str))
		return "";

	if ($strip_tags === true)
		$str = strip_tags($str);

	$str = ' ' . $str;

	$img_pattern = '`([^"=\'])((http|https|ftp)://[^\s<]+[^\s<\.)]+.(jpg|png|gif))`i';
	$link_pattern = '`([^"=\'])((http|https|ftp)://[^\s<]+[^\s<\.)])`i';

	if (preg_match($img_pattern, $str, $a, PREG_OFFSET_CAPTURE)) {
		$str = preg_replace(
			$img_pattern,
			"\n". '<img src="$2" class="autotext img_autotext '. $cssClass .'" />'."\n",
			$str
		);
	}

	if (preg_match($link_pattern, $str, $b, PREG_OFFSET_CAPTURE)) {
		$str = preg_replace(
			$link_pattern,
			'$1<a target="_blank" rel="nofollow" class="autotext a_autotext '. $cssClass .'" href="$2">$2</a>',
			$str
		);
	}

	while (strpos($str, "\n\n") !== false) {
		$str = str_replace("\n\n", "\n", $str);
	}

	$strA = explode("\n", $str);

	if (count($strA) > 1)
		$str = '<p class="autotext p_autotext '. $cssClass .'">'. implode('</p><p class="autotext p_autotext '. $cssClass .'">', $strA) .'</p>';
	else
		$str = '<p class="autotext p_autotext '. $cssClass .'">'. implode('', $strA) .'</p>';

	return $str;
}