My Monkey Do

A Log of Coding Solutions

debug

WordPress 4.6 crashed my site

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Fatal error: Cannot redeclare the_post_thumbnail_caption() (previously declared in ….

This error occurs because the_post_thumbnail_caption is a new function in WordPress 4.6.  However, people have been using this function for over 5 years now.  How?  Stackoverflow and other WordPress forums are flooded with questions asking how they can print out the thumbnail caption.  Since this wasn’t a built-in function before, the answer was to make your own function which was appropriately named the_post_thumbnail_caption.

Many theme authors, myself included, are now guilty of simply copy-pasting this function without adding their own theme prefix.  To avoid errors like this, functions within a theme should be prefixed with something unique to the theme like “mymonkeytheme_the_post_thumbnail_caption”.

If you have this error, contact your theme author and ask them to fix the theme.

 

WordPress only displays “error”

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In trying to copy over a theme and partially start over I ran into an issue where WordPress wouldn’t show anything but one word, error.  Well, that’s helpful.  Searching the wordpress forums I found that the problem is actually a security measure from Better WP Security.  Since my newly copied/created theme had so many missing files (404 errors) it blocked me out.  Deactivating that plugin (programmatically) caused the issue to go away.

Source:  http://wordpress.org/support/topic/getting-one-word-error-when-logging-into-wp-loginphp

Google font WOFF in Firefox

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Problem

In a website that gets fonts from Google’s CDN, the browser window loading icon continuously runs.  In Firebug you can see that the WOFF file from google is the culprit.

 

Solution

Turn off Firebug.  Apparently it’s a problem with Firefox/firebug that causes this issue.  Once you turn off firebug the website loads and no loading icon is shown.  The issue may be related to this, but not sure:  http://code.google.com/p/fbug/issues/detail?id=4649

 

keywords: google woff firefox error

WordPress Widget Image Field

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I found a great utility plugin to help with adding a Image picker field to a widget.  Basically you install and activate this plugin and you make your own widget and utilize the image field easily.
The only problem I had was that it didn’t work in Firefox.  I found a simple error on line 72 in the scripts.js file.  Instead of calling events.target.href it should be e.target.href because e is the parameter passed in.

 

how to use: http://mondaybynoon.com/20120206/wordpress-widget-image-field/

WordPress “The plugin generated xxxx characters of unexpected output during activation”

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Problem

I was developing a plugin for wordpress and receive a messsage:

The plugin generated 496 characters of unexpected output during activation

Solution

I placed the following code at the end of my plugin file,

update_option(‘plugin_error’,  ob_get_contents());

then looked in the wordpress options table using the query

“SELECT *
FROM `wp_options`
WHERE option_name = ‘plugin_error'”

Then I could see what the unexpected output was.

Or I could’ve installed the WH Debug plugin and just added this to the end of the plugin file:

wh_debug( ‘plugin_error’, ob_get_contents());

And then viewed it in the WordPress admin pages under Tools->WH Debug.

 

source: http://hungrycoder.xenexbd.com/wordpress-2/how-i-have-solved-the-the-plugin-generated-xxxx-characters-of-unexpected-output-during-activation-problem.html

keywords: wordpress characters of unexpected output during activation

 

Cannot redeclare class require_once

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Problem

I’m using classes and making each class a file. when I’m including dependet classess, I use require_once to avoid multiple declarations – yet I get a Fatal error: Cannot redeclare class…

 

Solution

Make sure all files that require the class have require_once and also make sure that the path that is required is the same case in all situations.  For example, my problem was that I was including a “/Users/name/xxx.php” and “/users/name/xxx.php”.  These paths are different and so PHP includes both of these.

 

keywords: Cannot redeclare class require_once
source: http://bytes.com/topic/php/answers/461064-require_once-doesnt-work-cannot-redeclare-class