Warning: preg_replace(): Compilation failed: unknown option bit(s) set at offset -1

Question

I recently upgraded my dedicated server to Apache 2.4.6, MySQL 5.5.32, and PHP 5.4.21. Now on my website I get this error:

Warning: preg_replace(): Compilation failed: unknown option bit(s) set at offset -1 in /home/champion/public_html/wp-includes/shortcodes.php on line 295

Here is the code from shortcodes.php on line 295:

$text = preg_replace("/[\x{00a0}\x{200b}]+/u", " ", $text);

Is the preg_replace function not compatible with the new PHP 5.4.21?

Take a look at this post: http://stackoverflow.com/questions/10338234/php-5-4-after-install-preg-match-compilation-failed-unknown-option-bits-s — Casimir et Hippolyte, Nov 14 '13 at 14:14

score 3 · Answer 1 · answered Nov 14 '13 at 16:28

3

Updating the PCRE version to 8.21 has fixed the problem.

answered Nov 14 '13 at 16:28

Daniel Harris

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Warning: preg_replace(): Compilation failed: unknown option bit(s) set at offset -1

1 Answers1