Does anyone know why wordpress converts some html entities to their numeric equivalents?

I've found that in some posts, where a non-breaking space   entity would be appropriate, wordpress uses   instead.

Seems to me that using the symbolic version of the entity would be better than a numeric version.

The routine that this is being done in (appears to be) ent2ncr in wp-includes/formatting.php.

When I converted my blog from a single site to multi-site (different install & database), the numeric entities were not converted properly (possibly due to a database difference). Had the symbolic entities been used, I doubt this would have been a problem.

  • Ok so disregard last comment your post was edited when i was typing. That is a good question. May 20, 2011 at 17:13

1 Answer 1


In XHTML entities are not part of the DTD, and user agents are not required to support them. Exceptions: &, <, >, " and '.

To keep WordPress X(HT)ML compatible numeric references are used instead.

  • That makes since. back to the old days instead i guess with that format. May 20, 2011 at 17:22
  • Seems like a step backwards to me, but oh well.
    – David G
    Jun 4, 2011 at 19:00

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