handling an array with foreach statement in php

Question

Hey guys I have an array like this

print_r($grouparray);

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => new group 1
            [2] => 100
            [3] => 1000
            [4] => group description
            [5] => #000000
        )

    [1] => Array
        (
            [0] => 2
            [1] => new group 2
            [2] => 1000
            [3] => 2000
            [4] => group description
            [5] => #ff0000
        )

)

Now I'm only allowed to write a foreach statement and I did this :

        foreach ((array)$grouparray AS $groups => $group) {
            echo $group[1]."<br>";
        }

and I expect output to be like this :

 new group 1
 new group 2

but the output is null.

because its a template engine syntax; and It only allows to use arrays in foreach with array() mark — Mac Taylor
– Mac Taylor, Commented Dec 25, 2011 at 8:29

Forty · Accepted Answer · 2011-12-25 08:38:23Z

3

It works for me:

$grouparray [] = array (
    1, 'new group 1', description); 

$grouparray [] = array (
    2, 'new group 2', description); 


print_r($grouparray);

foreach ($grouparray as $groups=>$group) {
    echo $group[1]."\r\n";
}

Output is:

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => new group 1
            [2] => description
        )

    [1] => Array
        (
            [0] => 2
            [1] => new group 2
            [2] => description
        )

)
new group 1
new group 2

My opinoin is that "new group 1" is not assigned by you to any object. Check it!

answered Dec 25, 2011 at 8:38

Forty

4301 gold badge6 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Mac Taylor Over a year ago

yeah thanks , I was correct and you were right the row was not assigned so I got null output. that was so stupid , i should get some rest

noob · Accepted Answer · 2011-12-25 08:27:40Z

2

foreach ($grouparray as $group) {
    echo $group[1] . "<br />";
}

answered Dec 25, 2011 at 8:27

noob

9,2224 gold badges40 silver badges65 bronze badges

Comments

Madara's Ghost · Accepted Answer · 2011-12-25 08:30:34Z

1

There are some things to correct in your code:

You don't need the tpye casting for your array, it is already an array.
Since you are looking for the values, and not the keys, you can omit that.

This gives us the following code:

foreach ($grouparray as $group) {
    echo $group[1] . "<br />";
}

answered Dec 25, 2011 at 8:30

Madara's Ghost

176k52 gold badges274 silver badges314 bronze badges

3 Comments

Mac Taylor Over a year ago

thanks but have you noticed that the array is a two level loop ? first one is the overall groups and the other one is each group details !

Madara's Ghost Over a year ago

In which case you would loop $group normally as your would with any other array.

Mac Taylor Over a year ago

believe me I didn't know that, and I thought the two level array should have a => for more specification.

Collectives™ on Stack Overflow

handling an array with foreach statement in php

3 Answers 3

1 Comment

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related