Quoting Brian Dunning <brian@xxxxxxxxxxxxxxxx>:
I'm trying to add a number to a value in an array. Pretend I have this:
$new_value = array('orange', 2);
$arr = array(
array('blue', 4),
array('orange', 5),
array('green', 6));
I want to add the new value to the existing matching array element, so
I end up with this:
$arr = array(
array('blue', 4),
array('orange', 7),
array('green', 6));
Seems like it should be really simple but all the ways I can figure out
to do it are too kludgey.
Just loop through the array to update. And use in_array to check if
the key to update exists. Then you can do $array[$key][1] = $newValue.
Something like this maybe:
function updateArray(&$array, $update)
{
list($updateKey, $updateValue) = $update;
foreach ($array as $key => $subArray) {
if (in_array($updateKey, $subArray)) {
$array[$key][1] = $updateValue;
}
}
}
updateArray($arr, $new_value);
var_dump($arr);
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