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  1. <?php 
  2.  
  3. function separateAnchors($html) {
  4. 	// Define a character sequence that 
  5. 	// will certainly not occur in your document,
  6. 	// and is interpreted as literal in regular expressions:
  7. 	$magicChar = "²³²"; 
  8. 	$doc = new DOMDocument();
  9. 	$doc->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
  10. 	$xpath = new DOMXPath($doc);
  11. 	$anchors = $xpath->query("//a");
  12. 	foreach (array_reverse(iterator_to_array($anchors)) as $anchor) {
  13. 		$parent = $anchor->parentNode;
  14. 		$origAnchor = $anchor->cloneNode(true);
  15. 		// temporariy put the special text in the anchor
  16. 		$anchor->textContent = $magicChar;
  17. 		// and then take the document's text content
  18. 		$txt = $doc->textContent;
  19. 		// If that contains the special text with a non-space following it:
  20. 		if (preg_match("/{$magicChar}\S/u", $txt)) {
  21.             // ... then add a single space node after it, after
  22.             // any closing parent nodes
  23.             $elem = $anchor;
  24.             while (!$elem->nextSibling) $elem = $elem->parentNode;
  25.             $elem->parentNode->insertBefore($doc->createTextNode(" "), 
  26.                                             $elem->nextSibling);
  27. 		}
  28. 		// Put original anchor back in place
  29. 		$parent->replaceChild($origAnchor, $anchor);
  30. 	}
  31. 	return $doc->saveHTML();
  32. }
  33.  
  34. // sample data
  35. $html = "<p><a>first link</a>&nbsp;<a>second link</a>this word is too close</p>\n
  36.          <table><tr><td><a>table cell</a></td></tr></table><span>end</span>\n
  37. 		 <div><a>link</a></div><span><a>too close</a></span>";
  38.  
  39. // inject spaces
  40. $html = separateAnchors($html);
  41.  
  42. // Show result
  43. echo $html;
  44.  
  45. ?>
Success #stdin #stdout 0s 52488KB
comments (?)
stdin 
Standard input is empty
stdout 
<p><a>first link</a>&nbsp;<a>second link</a> this word is too close<table><tr><td><a>table cell</a></td></tr></table> <span>end</span><div><a>link</a></div> <span><a>too close</a></span></p>
https://ideone.com/WTCpDn
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
secret

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