( array &array, mixed var [, mixed ...] )
array as a stack, and pushes the passed
variables onto the end of array. The
length of array increases by the number of
variables pushed. Has the same effect as:
repeated for each var
Returns the new number of elements in the array.
Example 1. array_push() example
$stack = array("orange", "banana");
array_push($stack, "apple", "raspberry");
This example would result in $stack having
the following elements:
 => orange
 => banana
 => apple
 => raspberry
If you use array_push() to add one element to the
array it's better to use $array = because in that
way there is no overhead of calling a function.
array_push() will raise a warning if the first
argument is not an array. This differs from the
$var behaviour where a new array is created.
See also array_pop(),