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Adding if statement in an array

Posted on 2013-12-30
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Last Modified: 2013-12-31
Hey All

I have this array code:

register_field_group(array (
		'id' => 'acf_page-options',
		'title' => 'Page Options',
		'fields' => array (
			array (
				'key' => 'field_1',
				'label' => 'Type1',
				'name' => '',
				'type' => 'text',
			),
                        array (
				'key' => 'field_2',
				'label' => 'Type2',
				'name' => '',
				'type' => 'text',
			),
		   ),
              );

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But I want to add in a if statement like this:

register_field_group(array (
		'id' => 'acf_page-options',
		'title' => 'Page Options',
		'fields' => array (
			array (
				'key' => 'field_1',
				'label' => 'Type1',
				'name' => '',
				'type' => 'text',
			),
                        if($something=0){     //<---
                        array (
				'key' => 'field_2',
				'label' => 'Type2',
				'name' => '',
				'type' => 'text',
			),
                        }  // end if
		   ),
              );

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Is that possible?
0
Comment
Question by:Sam Cohen
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5 Comments
 
LVL 31

Expert Comment

by:Marco Gasi
ID: 39747836
No, it isn't possible. You have to build two array and use one of them accordingly to the condition; or you can put the condition in the code which builds the array.

$array = array();
$array['id'] = 'acf_page-options';
$array['title'] = 'Page Options';
if ($something = 0) {
    $array['fields'] = array....
}else{
    $array['fields'] = array...
}

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0
 
LVL 111

Accepted Solution

by:
Ray Paseur earned 800 total points
ID: 39748102
register_field_group(array (...
This notation appears to be calling a PHP function.  The name of the function is register_field_group() and the argument being passed to the function is a multidimensional array.

PHP functions are described here:
http://www.php.net/manual/en/language.functions.php

The notation is troublesome because the data being passed to the function needs to be modified, however the data (the multidimensional array) is being created inside the function statement, where neither modification nor visualization is possible.  This is AntiPractice #9a and it prevents you from inserting the if() statement you want.

The solution is to create a separate variable and pass the separate variable to the function.  The separate variable can be created with conditional statements to define different data structures.  Obviously this is untested code, because we do not have your test data set, but it's probably pretty close to right.

// CREATE THE BASIC FIELDS ARRAY
$fields[] = array  
( 'key'   => 'field_1'
, 'label' => 'Type1'
, 'name'  => ''
, 'type'  => 'text'
)
;

// IF SOMETHING SIGNALS US, ADD ANOTHER ELEMENT TO THE FIELDS ARRAY
if ($something == 0)
{
    $fields[] = array  
    ( 'key'   => 'field_2'
    , 'label' => 'Type2'
    , 'name'  => ''
    , 'type'  => 'text'
    )
    ;
}
 
// CREATE THE MULTIDIMENSIONAL ARRAY FOR THE FUNCTION CALL
$multi_array = array 
( 'id'     => 'acf_page-options'
, 'title'  => 'Page Options'
, 'fields' => $fields 
)
;

// CALL THE FUNCTION USING THE VARIABLES WE CREATED
register_field_group($multi_array);

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HTH, ~Ray
0
 
LVL 8

Author Closing Comment

by:Sam Cohen
ID: 39748775
Thanks Ray!!!

I knew you would always give a very detailed answer each time.
Thank you for that!!
You Rock!
0
 
LVL 111

Expert Comment

by:Ray Paseur
ID: 39749033
Thanks for the points and thanks for using EE.  Happy New Year and best of luck with the project, ~Ray
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