Microsoft Word - Core PHP Programming Using PHP to Build Dynamic Web Sites

//print out all the values
//(red, blue, green, purple, yellow)
print("

");

print_r($colors);

print("

array array_reverse(array data)

The array_reverse function returns the data argument with the elements in reverse
order. The elements are not sorted in any way. They are simply in the opposite order.

<?
//create test data
$data = array(3, 1, 2, 7, 5);

//reverse order
$data = array_reverse($data);

//print in reverse order
//5, 7, 2, 1, 3
print("

");

print_r($data);

print("

value array_shift(array stack)

The array_shift function returns the first element of an array, removing it as well. This
allows you to treat the array like a stack. The array_unshift function adds an element
to the beginning of an array. Use array_pop and array_push to perform the same
actions with the end of the array.

<?
//set up an array of color names
$colors = array("red", "blue", "green");

$firstColor = array_shift($colors);

//print "red"
print($firstColor. "
\n");

//dump colors (blue, green)
print("

");

print_r($colors);

print("