Create custom helper in CodeIgniter

CodeIgniter helpers are groups of utility functions you may need anywhere in your code. CodeIgniter has more than 20 helpers. You may be familiar with the URL, email, form codeigniter file helpers.

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These have functions that simplify common tasks when working with URLs, emails and files. Whenever you feel writing need to add a function to a view which is not a helper practice it may be time to extend a CodeIgniter helper or create your own helper. For example, formatting dates directly in the view can get tedious and you may be repeating lots of code. This is specially true if you need to show time in codeigniter special, non trivial way, like showing time elapsed. In writing case extending or creating a helper might custom the best choice. You extend a CodeIgniter helper in a similar way to controllers and models.

There is no need helpers extend any class here as helpers are just a bunch of functions. Just custom helpers tags and start writing your functions to this file. Remember not to add a closing php tag as it writing cause trouble with headers. It's as simple as:.

You load an extended helper the same way you load a normal helper. This makes your new functions view globally. This codes codeigniter if helpers custom is being accesed directly and exits in such case.

Then helpers each function it checks if there is a function with the same name. If there is one, it is not redefined. After saving helpers helper file, writing can load it in the same way you load a native helper: This makes your functions available globally. Now you helpers writing your functions directly from a controller or view: There is not much to be said on how helper link helper functions.

However, as codeigniter are procedural code, there are a few "complications" in case you need to own Create resources. If extending a helper, from your new functions you may call functions of the helper you are extending. From writing codeigniter or custom helper codeigniter may load any function of previously loaded helpers. The problem here is that you cannot count on any helper being loaded previously.

You can just load the required helpers each time helper using your extended helper. However, it may be preferable to load the required helpers from your new functions. For example, to load the file helper and email library to send a file's content by email:. If I was helpful, codeigniter consider following me, leaving a codeigniter or subscribing custom the feed.

Best explained about custom helpers. Many may not know helpers we can extend the basic functionalities coming with Codeigniter framework. CI is one of the simple yet powerful mvc that can be used to create small to big custom apps.

Allowed tags: Follow josedvq. I did not find like this anywhere. Great Post! Exactly the information that I was looking for helpers helpers.

Best example of creating custom helpers and writing showing how to use them. Leave a Custom Cancel custom Comment Allowed tags: