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Using image ALT text as image caption text

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  1. theme_preprocess_node:
  2.  
  3. ///////////////////////
  4. //Image caption text
  5. //////////////////////
  6. $vars['content'] = _theme_altAsImageText($vars['content']);
  7.  
  8. template.php:
  9.  
  10.  
  11. /**
  12.  * Convert img tags alt text to caption text
  13.  * 
  14.  * @param string $text The text with img tags in
  15.  * 
  16.  * @return string The text with img tags and caption text from the alt field
  17.  */
  18. function _theme_altAsImageText($text)
  19. {
  20. 	preg_match_all('/<img[^>]+>/i',$text, $result); 
  21. 	$img = array();
  22. 	$imgTextResult = array();
  23. 	foreach( $result[0] as $key => $img_tag)
  24. 	{
  25. 	    preg_match_all('/(alt)=("[^"]*")/i',$img_tag, $img[$key]);
  26. 	    $imgTextResult[$key] = str_replace('"', "", $img[$key][2][0]);
  27. 	}
  28.  
  29. 	foreach( $result[0] as $key => $img_tag)
  30. 	{
  31. 		if($imgTextResult[$key])
  32. 		{
  33. 			if(strpos($imgTextResult[$key], 'php print $') === false)
  34. 			{			
  35. 				$imgText = '
  36. 					<div class="picture left">
  37. 						<span></span>' . 
  38. 						$img_tag
  39. 						. '<br />
  40. 						' . $imgTextResult[$key] . '
  41. 					</div>
  42. 				';
  43. 				$text =  str_replace($img_tag, $imgText, $text);
  44. 			}
  45. 		}
  46. 	}
  47.  
  48. 	return $text;
  49. }

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