Posted by Vik Rubenfeld on 09/24/07 20:52

I've got an multi-dimensional array that looks like this, when I examine
it in the Zend Debugger:

[]$ArrayOfData = Array[15]
[]1001 = Array[12]
tin = (double) 0.032
iron = (double) 101.24
Alloy_ID = (strin:4) 1001
,,,
[]1019 = Array[12]
tin = (double) 4.49
iron = (double) 53.03
Alloy_ID = (strin:4) 1019
...

Etc. I want to add a new field to each sub-array. For various reasons,
I can't use ForEach; I need to access the sub-arrays by their index key.

I tried doing this:

$theKey = 1001;
data_for_new_field = "55";
$ArrayOfData[$theKey]['new_field'] = $data_for_new_field;

But, that just added a new array element to $ ArrayOfData, like this:

[]$ArrayOfData = Array[15]
[]"1001" = Array [1]
new_field = (string:2) 55;
[]1001 = Array[12]
tin = (double) 0.032
iron = (double) 101.24
Alloy_ID = (strin:4) 1001
,,,
[]1019 = Array[12]
tin = (double) 4.49
iron = (double) 53.03
Alloy_ID = (strin:4) 1019
...

What's the correct way to access elements in $ArrayOfData, by their
index key?

Thanks very much in advance to all for any info.

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