CodeIgniter Create new helper

Question

I need to loop lot of arrays in different ways and display it in a page  The arrays are generated by a module class  I know that its better not to include functions on  views  and I want to know where to insert the functions file   I know I can  extend  the helpers  but I don t want to extend a helper  I want to kind of create a helper with my loop functions   Lets call it loops helper php

User · Answer

Well for me only works adding the text   helper  after in the php file like     And to load automatically the helper in the folder aplication -  file autoload php add in the array helper s the name without   helper  like       autoload  helper     array  comunes      And with that I can use all the helper s functions

User · Answer

A CodeIgniter helper is a PHP file with multiple functions  It is not a class  Create a file and put the following code into it     lt  php if     defined  BASEPATH    exit  No direct script access allowed     if     function exists  test method          function test method  var                     return  var               Save this to application helpers    We shall call it  new helper php   The first line exists to make sure the file cannot be included and ran from outside the CodeIgniter scope  Everything after this is self explanatory   Using the Helper    This can be in your controller  model or view  not preferable    this- gt load- gt helper  new helper     echo test method  Hello World      If you use this helper in a lot of locations you can have it load automatically by adding it to the autoload configuration file i e   lt your-web-app gt  application config autoload php    autoload  helper     array  new helper      -Mathew

User · Answer

Create a file with the name of your helper in  application helpers and add it to the autoload config file load it manually   E g  place a file called user helper php in  application helpers with this content    lt  php   function pre  var          echo   lt pre gt        if is array  var           print r  var         else         var dump  var             echo   lt  pre gt          gt     Now you can either load the helper via  this- gt load- gt helper    user      or add it to application config autoload php config

User · Answer

To retrieve an item from your config file  use the following function    this- gt config- gt item  item name    Where item name is the  config array index you want to retrieve  For example  to fetch your language choice you ll do this    lang    this- gt config- gt item  language    The function returns FALSE  boolean  if the item you are trying to fetch does not exist   If you are using the second parameter of the  this- config- load function in order to assign your config items to a specific index you can retrieve it by specifying the index name in the second parameter of the  this- config- item   function  Example      Loads a config file named blog settings php and assigns it to an index named  blog settings    this- gt config- gt load  blog settings   TRUE        Retrieve a config item named site name contained within the blog settings array   site name    this- gt config- gt item  site name    blog settings         An alternate way to specify the same item    blog config    this- gt config- gt item  blog settings       site name    blog config  site name

User · Answer

Just define a helper in application helper directory then call from your controller just function name like  helper name   new helper php function test method  data    return  data        in controller load the helper   this- gt load- gt new helper     result    test method  Hello world     if  result    echo  result     output will be  Hello World

User · Answer

Some code that allows you to use CI instance inside the helper     function yourHelperFunction         ci  amp  get instance         ci- gt load- gt database           sql    select   from table         query    ci- gt db- gt query  sql        row    query- gt result

User · Answer

To create a new helper you can follow the instructions from The Pixel Developer  but my advice is not to create a helper just for the logic required by a particular part of a particular application  Instead  use that logic in the controller to set the arrays to their final intended values  Once you got that  you pass them to the view using the Template Parser Class and  hopefully  you can keep the view clean from anything that looks like PHP using simple variables or variable tag pairs instead of echos and foreachs  i e    blog entries   lt h5 gt  title  lt  h5 gt   lt p gt  body  lt  p gt    blog entries    instead of   lt  php foreach   blog entries as  blog entry     gt   lt h5 gt  lt  php echo  blog entry  title      gt  lt  h5 gt   lt p gt  lt  php echo  blog entry  body      gt  lt  p gt   lt  php endforeach    gt    Another benefit from this approach is that you don t have to worry about adding the CI instance as you would if you use custom helpers to do all the work

[php] CodeIgniter: Create new helper?

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