The Linux Page

array

Polylang messes up my canonical link on my website

UPDATE:

I reported this problem to the author who took a bit of time but ended up fixing the problem. If you still have a problem, you probably need to upgrade to the newest version.


I just created a new website and added a few plugins, one of which is Polylang. It generally works okay. Not what I really would like to have, but close enough for a Wordpress website.

Only, it has a horrible side effect:

I destroys the canonical URL which instead of appearing as expected appears with a "%pagename%" variable in it. This is because the module caches the results of a previous call ...

Setting up an array of JavaScript functions in jQuery

Today I worked a bit with jQuery to create an advanced form. Advanced just because it is tabbed and appears in a pop-up, nothing too major really. Maybe later I'll add some tests to validate the data being entered before someone can submit the form...

In any event, I ran in a problem which was to create a set of click callback functions (event handlers) and each of which should make use of a different index. So... I have 4 tabs and each one has a number: 1, 2, 3, and 4.

Say I call each one of these numbers #tab1, #tab2, #tab3, and #tab4. Now I want to create a click function on each one ...

get_defined_vars() PHP function

Once in a while, I need to get the complete list of all the variables available in a PHP piece of code.

This is done with the get_defined_vars() PHP function. It's very simple, it returns an array of name / value pairs. You can then print that value using print_r() or var_dump().

That's it!

AddThis is down, how to prevent the slow download of your pages?

Today AddThis is down, big time! For hours...

So to make my websites load faster (although I did not delete all the caches, which is a problem too?!) I removed the functionality. If you have Drupal, there is what I have done to leave the settings the same but still hide the AddThis button and thus get all the pages of all my websites to load fast.

First we remove the link by returning an empty array:

/**
 * Implementation of hook_link(). 
 */
function addthis_link($type, $node=NULL, $teaser = FALSE) {
return array(); // immediate return
  $links = array();

  if ($type ===  ...

PHP Variables and E_NOTICE

Today I learned that not defining a variable in PHP would generate a notice error.

I had been wondering, why it is that so many people in Drupal define their variable or check them with isset()? That's why. In a way it is terrible that you can use a variable that does not exist and just get NULL, on the other hand, quite often that's because you intended to use another variable... (i.e. $create instead of $created, you declare $bool in one function and use it again in another, etc.)

This applies to objects, array indexes, and just plain variables. If you write:

Creating a Trigger in Drupal

I have been wondering, for a while, how the triggers where generated in Drupal. I know that one can catch a message by writing a hook function and you have hundreds of those available. However, how are the triggers working?!

The fact is that triggers require you to write a function. The Core Trigger module has a set of specialized functions for the Core modules and it is limited to that. In other words, you cannot expect new modules to simply define an array and get the triggers to work (I was really wondering how could that really work?!)

[toc hidden:1]

Taxonomy error generated from invalid nodes

Today I ran in an error that looked like this:

Invalid argument supplied for foreach() in <path>/modules/taxonomy/taxonomy.module on line 1214.

The line number may vary depending on the version you are using. At the time, I had Drupal 6.14 and the line number was 1214.

The problem is with a node that has an invalid definition of its taxonomy field. In other words, the $node->taxonomy is not defined. If it were an empty array, the function would not fail.

[toc hidden:1]

The bad thing about GetRows()

In MS-Access you can create a Recordset using the OpenRecordset on a database.

Once you have that record set, you can get the rows with the GetRows() function.

It has one advantage: once the function returns the data remains consistent (it is in an array). The really bad part is... what is returned is an array. This means all the fields are now numbered instead of named.

PHP glob function does not return softlinks

I use all sorts of tricks in order to duplicate functionality without actually duplicating PHP code.

One of the main, easiest way under Unix is to create softlinks. First put all your code in one folder, then create a softlink to it. That gives you two paths:

RETURN not working in Visual Basic & Arrays...

RETURN statement in BASIC

Like many programmers, I switch between languages quite often.

I have worked with BASIC before since I had an Apple //c and used other Apple ][ computers that had some (really bad, early) BASIC language in their ROM.

At the time, the worst part was the line numbers. You had to write in BASIC as if you were writing assembly language. And I'll skip the numerous problems with memory...

Syndicate content Syndicate content

SMS From Me Logo

SMS From Me

To automatically start one on one conversations with your online leads.

     

   

Terms of Site Index

Find the page/content you are looking for with our index.

  • FAT
    The FAT (File Allocation Table) file system has its origins in the late 1970s and early 1980s and was the file system supported by the Microsoft MS-DOS operating system. It was originally developed as a simple file system suitable for floppy disk drives less than 500K in size. Over time it has been enhanced to support larger and larger media. Currently there are three FAT file system types: FAT12, FAT16 and FAT32. The basic difference in these FAT sub types, and the reason for the names, is the size, in bits, of the entries in the actual FAT structure on the disk. There are 12 bits in a FAT12 FAT entry, 16 bits in a FAT16 FAT entry and 32 bits in a FAT32 FAT entry.
  • error
  • jQuery
  • restore
  • user