foreach and $data[$var][$i] arrays

[aliento]

Hello ,

I have a table like $data[$var][$i] $data is an string, $var is a string and $i is an index int.

I am tired to write for($i=1;,$i<=count($$data[$var],$i++) { echo $data['id'][$i] ... }oouuuff

How i can make it with foreach ?

I tried foreach ($data -> $field as $value) echo $value; but i doesnt work.

Any advise ?

[titan21]

I haven't tried this but would this work:

 

foreach ($data[$var] -> $field as $value)

[aliento]

No it does not work returns Warning: Invalid argument supplied for foreach() Thank you.

[titan21]

Can you try nesting foreach statements?

 

foreach ($data -> $field as $value)
{
   foreach($value -> $field2 as $value2)
   {

   }
}

[codefossa]

$data needs to be an array, not a string.  Also, you shouldn't use count() in a loop like that.  Just store it in a variable before the loop.

[aliento]

@titan21 No again it returns the same.

@Kira $data is an array and $var is an array but not integers. The $i is int i mean.

[titan21]

Can you send us the output from

 

print_r($data)

[codefossa]

@titan21 No again it returns the same.

@Kira $data is an array and $var is an array but not integers. The $i is int i mean.

$var should be a string as you're using it as a key.

[codefossa]

Is this what you're trying to do?

 

$var = 'key';

$data['key'] = array(
    'item0',
    'item1',
    'item2'
);

foreach ($data[$var] as $item)
{
    echo "{$item}<br />";
}

 

Will output:

 

item0
item1
item2

[aliento]

This is the array :

$data = array( 
                           /* ("field")*/ array(1, 2 , 3)),
               array(array(1, 2 , 3)),
               array(array(1, 2 , 3)) 
             ); 

 

[codefossa]

Okay, so there's no key to call on, therefore I'm assuming you want to loop through them all.  What I don't understand is why you would use an array within an array making the inner array the first item of the outer array, which is pointless unless there's multiple arrays in it.

 

A more sensible array would be something like:

 

$data = array(
    'key1' => array(1, 2, 3),
    'key2' => array(1, 2, 3),
    'key3' => array(1, 2, 3)
);

 

Then you could call on it by the key of choice (as it looks like you were trying to do by the previous posts).

 

$data = array(
    'key1' => array(1, 2, 3),
    'key2' => array(4, 5, 6),
    'key3' => array(7, 8, 9)
);

$var = 'key2';

foreach ($data[$var] as $item)
{
    echo "{$item}<br />";
}

 

Outputs

 

4
5
6

 

Hopefully I'm correct on what you're trying to do.

[aliento]

It works !

Thank you

[codefossa]

It works !

Thank you

Yup