Functions with Static Variables

This PHP code is an example program that demonstrates how to write functions with static variables.

FunctionsWithStaticVariables.php

<?php

  // This is a function an internal static variable.
  function WithStaticVariables() {
    // Static variables are maintained across function calls.
    static $siValue = 5;
    echo "The now value is ".$siValue."<br />";
    ++$siValue;
  }

  // Call the function three times. The value increases each time.
  WithStaticVariables();
  WithStaticVariables();
  WithStaticVariables();

?>

Output