[PHP] Editing an element within an array

[Brian Dunning]

I have a two-dimensional array that looks like this:

array(
        array(0, 123),
        array(0, 234),
        array(0, 345),
        array(0, 456)
)
I want to REMOVE any element that contains 234, and I want to  
INCREMENT the first value for any element that contains 345, to make  
it look like this:

array(
        array(0, 123),
        array(1, 345),
        array(0, 456)
)

A pint of cachaça to he who sets me on the path to success.
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