Question

how do i add values from arrays to an array so that it grows by time.

eg.

all values form array1 to myArray.

all values form array2 to myArray.

so now myArray contains all values from 1 and 2.

i want to do this in a cpu efficient way

Answer 1

Either use the array_merge() function (also see array_merge_recursive()):

$myArray = array_merge($array1, $array2);

If the input arrays have the same
string keys, then the later value for
that key will overwrite the previous
one. If, however, the arrays contain
numeric keys, the later value will not
overwrite the original value, but will
be appended.

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Or use the Union Array Operator (+):

$myArray = $array1 + $array2;

The + operator appends elements of
remaining keys from the right handed
array to the left handed, whereas
duplicated keys are NOT overwritten.