PHP Functions Essential Reference

array_pad

array array_pad(array array, int pad_size, mixed pad_value) 

array	Array to pad
pad_size	Number of elements in resulting array
pad_value	Value to give to added elements

Pads an array with a specified number of elements with a given value.

Returns:

Original array, possibly padded to a greater number of elements; NULL on failure

Description:

This function pads the array passed in array with elements having the value given in pad_value until it contains the number of elements given by the absolute value of pad_size . If pad_size is positive, the new elements are added to the end of array . If pad_size is negative, the new elements are added to the beginning. If the absolute value of pad_size is equal to or less than the number of ...