How to efficiently insert elements after another known (by key or pointer) element in a PHP array?

Question

Given an array:

$a = array(
    \'abc\',
    123,
    \'k1\'=>\'v1\',
    \'k2\'=>\'v2\',
    78,
    \'tt\',
    \'k3\'=>\'v3\'
);

Wi

Answer 1

There's a nice function that would help you here: https://gist.github.com/scribu/588429