Change Order of Loaded Behaviors in CakePHP 3

 Turns out it's really easy to change the order of how behaviors are loaded in CakePHP 3.  Wait, I'm actually sort of lying.  You can't change the order of loaded behaviors. (BOO!).  In previous versions of Cake this was a problem... however, with the fully implemented Events subsystem in Cake3, all you need to do is change the priority of the behavior callbacks.  What's that, you say?

Change Order of Behaviors in Cake3

You actually don't need to worry about the order that behaviors are loaded anymore!  That's huge, because it completely decouples Behavior load order with callback order.  Let me show you:

Change the Order Programmatically

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1. $table->addBehavior('Aa');
2. $table->addBehavior('Bb');
3.  
4. // See which behaviors are loaded
5. debug($table->behaviors()->loaded());
6.  
7. // [Aa, Bb] are loaded
8.  
9. // Now we'll drop and add Aa, which will put it at the end of the list
10. $table->removeBehavior('Aa');
11. $table->addBehavior('Aa');
12.  
13. // See which behaviors are loaded
14. debug($table->behaviors()->loaded());
15.  
16. // [Bb, Aa] is the order of behaviors now ... uh oh! this will run Aa callbacks last
17.  
18. // Instead, let's add Aa with a priority
19. $table->removeBehavior('Aa');
20. $table->addBehavior('Aa', ['priority' => 1]);
21.  
22. // See which behaviors are loaded
23. debug($table->behaviors()->loaded());
24.  
25. // [Bb, Aa] is the order of behaviors still ... BUT the priority will fire Aa callbacks before Bb!!

Event Priority for Behavior Callback Order

By default, all behavior callbacks have a priority of 10.  Set the priority below 10 to run before everything else, or higher than 10 to run last.  Read the docs.

Cheers,
-Kevin Wentworth

Making PHP File Uploads Work For Large Files

 

Get PHP File Uploads Working

The first trick to having any user contributed content these days is to get PHP File Uploads working (especially with big files).  Our configuration we use for our Wamp local development and on our Linux server is below.

When managing file uploads to a server, there seems to be a lot of confusion regarding optimized PHP settings and configuration. We have had some experience with this that we would like to share.

We'll cut to the chase. Verify the following settings in your PHP configuration.

file_uploads ON

memory_limit 128M (optimize for your server capability)

upload_max_filesize 50M (tailor to your needs)

post_max_size (needs to match upload size)

A number of comments and blogs that we see suggest that max_input_time and max_execution_time may have been a limiting factors, we have not been able to resolve issues by increasing these beyond the default values of 60 and 30 seconds respectively.

Know also that developers may set memory limits and timeouts dynamically within the application.

ini_set('memory_limit','128M');

set_time_limit(0); /* time in seconds or zero to disable timeout */

 

In CPanel the post_max_size setting is accessed in Advanced PHP configuration.