hphp/test/zend/good/ext-standard-array/array_sum_variation5.php

   1 <?php
   2 /* Prototype  : mixed array_sum(array $input)
   3  * Description: Returns the sum of the array entries
   4  * Source code: ext/standard/array.c
   5 */
   6
   7 /*
   8 * Testing array_sum() with 'input' having reference variables as elements
   9 */
  10
  11 echo "*** Testing array_sum() : array with elements as reference ***\n";
  12
  13 $value1 = -5;
  14 $value2 = 100;
  15 $value3 = 0;
  16 $value4 = &$value1;
  17
  18 // input array containing elements as reference variables
  19 $input = array(
  20   0 => 10,
  21   1 => &$value4,
  22   2 => &$value2,
  23   3 => 200,
  24   4 => &$value3,
  25 );
  26
  27 var_dump( array_sum($input) );
  28
  29 echo "Done"
  30 ?>