in regards to Joe's problem with arr1 + arr2 versus
array_merge(arr1, arr2) - this seems to have been fixed in
php 5.2.3
$arr1['foo'] = 'bar';
$arr2['bar'] = 'baz';
$arr3 = $arr1 +$arr2;
print_r($arr3) will produce:
array(
'foo' => 'bar',
'bar' => 'baz'
);
I should also note that array_merge() will convert strings
of integers into integers for php 5.2.3. For example:
$arr1['007'] = 'james bond';
$arr2['008'] = 'some other spy';
$arr3 = array_merge($arr1, $arr2);
print_r($arr3) will produce:
array(
7 => 'james bond',
8 => 'some other spy'
);
so if you must maintain leading zeros, it's best to use
$arr1 + $arr2 instead of array_merge.
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