Retrieve the key value from a arrayObject

Question

This is my array:

ArrayObject::__set_state(
    array( 'data' => 
        array ( 
            'key1' => '573779', 
            'key2' => 'REF12345', 
            'key3' => '2010-07-12', 
            'key4' => '0000-00-00', 
            'key5' => '2010-07-12', 
            'key6' => '21654',
            'key7' => '0', 
            'key8' => ArrayObject::__set_state(array( )),
            'key9' => ArrayObject::__set_state(array( )), 
            'key10' => array ( ), 
            'key11' => array ( ), 
        )
)

I'm interested in finding out out how to retrieve any of the values for a key using SPL. Any of the keys can have arrays within arrays so I'm unsure how to obtain a value. I thought I may be able to use ->offsetGet('') but this only retrieves from the top-most array.

If a key contains an array, do you need to be able to access any specific member of that subarray? Also, that's a lot of keys. — rownage
– rownage, Commented Jul 16, 2010 at 15:42
Give an example of what you're trying to do, even if it doesn't currently work. — salathe
– salathe, Commented Jul 16, 2010 at 15:59
Yes, I potentially need to be able to access the array of a key — user275074
– user275074, Commented Jul 18, 2010 at 20:13

mmmmm · Accepted Answer · 2017-09-13 08:07:36Z

3

ArrayObject implements ArrayAccess so you can simply access them with the regular Array Notation, e.g.

echo $arrayObject['key1'];

In addition, ArrayObjects are IteratorAggregates, so you can iterate over them with foreach and decorate them with any of the SPL iterators, including the RecursiveIteratorIterator

edited Sep 13, 2017 at 8:07

mmmmm

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answered Jul 16, 2010 at 15:41

Gordon

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