Problem Trying To Look Through Array?

[Solarpitch]

Hey Guys,

 

I'm after creating an array of some description and cant seem to figure out how to get the data from it:

 

The array looks like this...

 

Array
(
[1] => Array
(
[0] => stdClass Object
(
[id] => 1
[question] => Sprint Planning duration: between 2-4 hours
[question_category] => 1
[created] =>
[category_name] => Sprint Planning
[question_id] => 1
)
[1] => stdClass Object
(
[id] => 1
[question] => Team used Roman Voting to agree what user stories will be part of the sprint
[question_category] => 1
[created] =>
[category_name] => Sprint Planning
[question_id] => 2
)
[2] => stdClass Object
(
[id] => 1
[question] => Backlog is correctly prioritized
[question_category] => 1
[created] =>
[category_name] => Sprint Planning
[question_id] => 3
)
[3] => stdClass Object
(
[id] => 1
[question] => Team discuss user story and acceptance criteria for each story and have clear understanding of what is expected
[question_category] => 1
[created] =>
[category_name] => Sprint Planning
[question_id] => 4
)
[4] => stdClass Object
(
[id] => 1
[question] => Each user story in the sprint is Sprint Ready
[question_category] => 1
[created] =>
[category_name] => Sprint Planning
[question_id] => 5
)
[5] => stdClass Object
(
[id] => 1
[question] => There are between 5-20 user stories in the sprint
[question_category] => 1
[created] =>
[category_name] => Sprint Planning
[question_id] => 6
)
)
[2] => Array
(
)
[3] => Array
(
)
)

 

I'm trying this but get the below error. $get_questions holds the above array.

 

<?php foreach($get_questions as $question){
echo $question->category_name;
?>

 

error:

A PHP Error was encountered

 

Severity: Notice

Message: Trying to get property of non-object

Edited December 25, 2012 by Solarpitch

[Christian F.]

If we add some proper indenting to that result, it'll be easier to see what's wrong:

Array (
[1] => Array (
	[0] => stdClass Object (
		[id] => 1
		[question] => Sprint Planning duration: between 2-4 hours
		[question_category] => 1
		[created] =>
		[category_name] => Sprint Planning
		[question_id] => 1
	)
	[1] => stdClass Object (
		[id] => 1
		[question] => Team used Roman Voting to agree what user stories will be part of the sprint
		[question_category] => 1
		[created] =>
		[category_name] => Sprint Planning
		[question_id] => 2
	)
	[2] => stdClass Object (
		[id] => 1
		[question] => Backlog is correctly prioritized
		[question_category] => 1
		[created] =>
		[category_name] => Sprint Planning
		[question_id] => 3
	)
	[3] => stdClass Object (
		[id] => 1
		[question] => Team discuss user story and acceptance criteria for each story and have clear understanding of what is expected
		[question_category] => 1
		[created] =>
		[category_name] => Sprint Planning
		[question_id] => 4
	)
	[4] => stdClass Object (
		[id] => 1
		[question] => Each user story in the sprint is Sprint Ready
		[question_category] => 1
		[created] =>
		[category_name] => Sprint Planning
		[question_id] => 5
	)
	[5] => stdClass Object (
		[id] => 1
		[question] => There are between 5-20 user stories in the sprint
		[question_category] => 1
		[created] =>
		[category_name] => Sprint Planning
		[question_id] => 6
	)
)
[2] => Array ()
[3] => Array ()
)

 

Hopefully that helps you in spotting the problem?

[Solarpitch]

Apologies, arrays are not my strong point.. indenting it would be a task in itself. And I still havent a clue what the problem is.

 

EDIT: I'm thinking I might need to go down the route of something like but not really sure.

 

<?php foreach($get_questions as $key => $value){ ?>

..

Edited December 25, 2012 by Solarpitch

[Barand]

It isn't an array of objects, it's an array of arrays of objects

[Solarpitch]

Yeah, while I can mange looking through arrays or objects... I'm confused as to how I can loop through what I just created.

[Barand]

There is an extra dimension in your array. Look at the reformatted version from Christian F

 

<?php 
foreach($get_questions as $array) {
 foreach($array as $question) {
   echo $question->category_name;
 }
}
?>

[us2rn4m2]

Hi,

 

One by one

echo $array[1][0]->category_name;

 

All

for($i = 0; $i < count($array[1]); $i++) {
echo $array[1][$i]->category_name;
}

[Solarpitch]

Guys, many thanks for your help! I totally understand now cheers!