Accessing Array Data in Object

Question

I'm trying to access a piece of data in an array of arrays that (I believe) is in an object (this may not be the right term though).

When I do print_r on this: $order_total_modules->process() I get...

Array (
[0] => Array (
            [code] => ot_subtotal 
            [title] => Sub-Total: 
            [text] => $49.99 
            [value] => 49.99 
            [sort_order] => 1 
            ) 
[1] => Array (
            [code] => ot_total 
            [title] => Total: 
            [text] => $0.00 
            [value] => 0 
            [sort_order] => 12 
            ) 
)

If I run echo $order_total_modules->process()[1][3];, I should get "0", because that is the 3rd element of the 2nd array... right? Yet, I get an error.

Can anyone help with this?

That's an associative array, not a numeric-indexed one. [1]['value'] — Michael Berkowski
– Michael Berkowski, Commented Dec 10, 2014 at 21:59

AbraCadaver · Accepted Answer · 2014-12-10 22:00:39Z

1

Even though it is the third element counting from 0, the index is not 3 it is an associative array with the index value:

Available in PHP >=5.4.0:

echo $order_total_modules->process()[1]['value'];

Or PHP < 5.4.0:

$result = $order_total_modules->process();
echo $result[1]['value'];

edited Dec 10, 2014 at 22:00

answered Dec 10, 2014 at 21:59

AbraCadaver

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2 Comments

Michael Berkowski Over a year ago

Hope you don't mind the edit - it's 5.4+, not 5.5 for array dereferencing.

DarkBee Over a year ago

Michael beat me to it :)

g_uint · Accepted Answer · 2014-12-10 21:59:41Z

0

You cannot access an associative array via an integer index(unless the index is an actial integer). So in this case use : [1]['code'] to access what woulde be [1][0] with a 'normal' array.

answered Dec 10, 2014 at 21:59

g_uint

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Comments

Thanasis Pap · Accepted Answer · 2014-12-10 22:00:17Z

0

Try putting it in a var first:

$ar = $order_total_modules->process();
echo $ar[1]['value'];

The second level array is an assoc, which means that the key is not numeric, which means that you need to call the name of the key, hence the 'value'.

answered Dec 10, 2014 at 22:00

Thanasis Pap

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