Title: Compatibility with PHP Version 5.3.3
Last modified: August 22, 2016

---

# Compatibility with PHP Version 5.3.3

 *  [TTYP](https://wordpress.org/support/users/ttyp/)
 * (@ttyp)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/compatibility-with-php-version-533/)
 * Hi there,
 * Please could you tell me if this plugin is compatible with PHP Version 5.3.3?
 * I’m having problems with my server response time and my host keeps telling me
   that to improve it, I need to change to 5.3.3. However, when I do, my breadcrumb
   links all break.
 * Is there something I can do to stop this happening? Or is the host just trying
   to pass the blame?
 * I have a fast, working site but it can take 4-6 seconds for the host the host
   to respond when I run tests on Pingdom.
 * Thank you in advance for your help!
 * [https://wordpress.org/plugins/breadcrumb-navxt/](https://wordpress.org/plugins/breadcrumb-navxt/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [John Havlik](https://wordpress.org/support/users/mtekk/)
 * (@mtekk)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/compatibility-with-php-version-533/#post-5492515)
 * Breadcrumb NavXT 5.1 should work with PHP5.3 and up. What version of PHP are 
   you migrating from? I highly reccommend migrating to PHP5.5. If performance is
   an issue newer version of PHP will perform better, and it’s likely either you
   have enough traffic that you should be caching things, or you have a misbehaving
   plugin.
 * I would reccommend enabling wp_debug to see if any PHP error or warning messages
   appear on pages where things are not working correctly.
 *  Thread Starter [TTYP](https://wordpress.org/support/users/ttyp/)
 * (@ttyp)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/compatibility-with-php-version-533/#post-5492517)
 * Hi John,
 * Thanks for the reply! I’m new to all this so appreciate your help.
 * After a bit more digging around I think I’ve identified the problem. I’m using
   the SEO redirection plugin on some of the breadcrumb trail links (I want them
   to point back to pages, rather than categories).
 * It’s been working fine but for some reason, when I change from PHP version 5.2.17
   to 5.5, I get the following error:
 * _
    Warning: mysql\_real\_escape\_string(): No such file or directory in /websites/
   123reg/LinuxPackage22/ro/ut/es/MYSITE.com/public\_html/wp-content/plugins/seo-
   redirection/common/util.php on line 61
 * Warning: mysql_real_escape_string(): A link to the server could not be established
   in /websites/123reg/LinuxPackage22/ro/ut/es/MYSITE.com/public_html/wp-content/
   plugins/seo-redirection/common/util.php on line 61
 * Warning: Cannot modify header information – headers already sent by (output started
   at /websites/123reg/LinuxPackage22/ro/ut/es/MYSITE.com/public_html/wp-content/
   plugins/seo-redirection/common/util.php:61) in /websites/123reg/LinuxPackage22/
   ro/ut/es/MYSITE.com/public_html/wp-content/plugins/seo-redirection/seo-redirection.
   php on line 392
 * Warning: Cannot modify header information – headers already sent by (output started
   at /websites/123reg/LinuxPackage22/ro/ut/es/MYSITE.com/public_html/wp-content/
   plugins/seo-redirection/common/util.php:61) in /websites/123reg/LinuxPackage22/
   ro/ut/es/MYSITE.com/public_html/wp-content/plugins/seo-redirection/seo-redirection.
   php on line 393
 * Do you have any suggestions? Or is the only solution to go through and manually
   re-make the links?
 * Thank you!
 * Thanks for your help
 *  Plugin Author [John Havlik](https://wordpress.org/support/users/mtekk/)
 * (@mtekk)
 * [11 years, 4 months ago](https://wordpress.org/support/topic/compatibility-with-php-version-533/#post-5492549)
 * In regards to the SEO plugin not behaving correctly in PHP5.5, I would see if
   there is an update available for it. If not, let the author of that plugin know
   it is not working correctly in PHP5.5. If the plugin is no longer supported by
   it’s author you can either fix the links by hand, or find an alternate plugin
   that does support PHP5.5.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Compatibility with PHP Version 5.3.3’ is closed to new replies.

 * ![](https://ps.w.org/breadcrumb-navxt/assets/icon.svg?rev=1927103)
 * [Breadcrumb NavXT](https://wordpress.org/plugins/breadcrumb-navxt/)
 * [Support Threads](https://wordpress.org/support/plugin/breadcrumb-navxt/)
 * [Active Topics](https://wordpress.org/support/plugin/breadcrumb-navxt/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/breadcrumb-navxt/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/breadcrumb-navxt/reviews/)

## Tags

 * [php](https://wordpress.org/support/topic-tag/php/)

 * 3 replies
 * 2 participants
 * Last reply from: [John Havlik](https://wordpress.org/support/users/mtekk/)
 * Last activity: [11 years, 4 months ago](https://wordpress.org/support/topic/compatibility-with-php-version-533/#post-5492549)
 * Status: not resolved