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  1. <?php
  2.  
  3. $data = <<<DATA
  4. [img]img_patch[/img]
  5. [img=200x150]img_patch[/img]
  6. [img width=200 height=150]img_patch[/img]
  7. [img=width=200xheight=150]img_patch[/img]
  8. [img width=200]img_patch[/img]
  9. DATA;
  10.  
  11. $regex = '~
  12. 					(?P<tag>\[img[^][]*\])
  13. 					(?P<src>.+?)
  14. 					\[/img]
  15. 					~x';
  16.  
  17.  
  18. $inner = '~\b(?P<key>width|height)?=(?P<value>[^\s\]]+)~';
  19. $values = '~\d+~';
  20.  
  21. $data = preg_replace_callback($regex,
  22. 	function($match) use($inner, $values) {
  23. 		$attr = [];
  24. 		preg_match_all($inner, $match['tag'], $attributes, PREG_SET_ORDER);
  25. 		foreach($attributes as $attribute) {
  26. 			if (!empty($attribute["key"])) $attr[$attribute["key"]] = $attribute["value"];
  27. 			else {
  28. 				preg_match_all($values, $attribute["value"], $width_height);
  29. 				list($attr["width"], $attr["height"]) = array($width_height[0][0], $width_height[0][1]);
  30. 			}
  31. 		}
  32.  
  33. 		// do the actual replacement here
  34. 		$attr["src"] = $match["src"];
  35. 		$ret = "<img";
  36. 		foreach ($attr as $key => $value) $ret .= " $key='$value'";
  37. 		$ret .= '>';
  38.  
  39. 		return $ret; 
  40. 	},
  41. 	$data);
  42.  
  43. echo $data;
  44. ?>
Success #stdin #stdout 0s 82944KB
comments (?)
stdin 
Standard input is empty
stdout 
<img src='img_patch'>
<img width='200' height='150' src='img_patch'>
<img width='200' height='150' src='img_patch'>
<img width='200' height='150' src='img_patch'>
<img width='200' src='img_patch'>
https://ideone.com/rptUJW
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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