例子 1. 得到系统持续运行的时间,并把它显示在消息对话框中 
<?php // Define constants needed, taken from // Visual Studio/Tools/Winapi/WIN32API.txt define("MB_OK", 0);
  // Load the extension in dl("php_w32api.dll");
  // Register the GetTickCount function from kernel32.dll w32api_register_function("kernel32.dll",                          "GetTickCount",                          "long");
  // Register the MessageBoxA function from User32.dll w32api_register_function("User32.dll",                          "MessageBoxA",                          "long");
  // Get uptime information $ticks = GetTickCount();
  // Convert it to a nicely displayable text $secs  = floor($ticks / 1000); $mins  = floor($secs / 60); $hours = floor($mins / 60);
  $str = sprintf("You have been using your computer for:".                 "\r\n %d Milliseconds, or \r\n %d Seconds".                 "or \r\n %d mins or\r\n %d hours %d mins.",                 $ticks,                 $secs,                 $mins,                 $hours,                 $mins - ($hours*60));
  // Display a message box with only an OK button and the uptime text MessageBoxA(NULL,             $str,             "Uptime Information",             MB_OK); ?>
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