array_product
    (PHP 5 >= 5.1.0RC1)
array_product -- 
     Calculate the product of values in an array
    
Description
number 
array_product ( array array )
     array_product() returns the product of values
     in an array as an integer or float.
    
     
Example 1. array_product() examples 
<?php
  $a = array(2, 4, 6, 8); echo "product(a) = " . array_product($a) . "\n";
  ?>
 |  
 The above example will output:  |