array_unshift prepends passed elements to the front of the array. Note that the list of elements is prepended as a whole, so that the prepended elements stay in the same order. All numerical array keys will be modified to start counting from zero while literal keys won't be changed.
Resets array's internal pointer to the first element.
The input array.
The values to prepend.
Returns the new number of elements in the array.
|7.3.0||This function can now be called with only one parameter. Formerly, at least two parameters have been required.|