Using the Windows binary build of PHP 4.2.0 RC4, the function w32api_invoke_function() seems to be broken. With the w32api extension loaded, I can call other w32api functions such as w32api_register_function(), but if I call w32api_invoke_function() PHP spits out this error:

<b>Fatal error</b>:  Call to undefined function:  w32api_invoke_function() in <b
>C:\source\uptime.php</b> on line <b>13</b>

uptime.php is a test script I downloaded from the w32api CVS directory. Here it is:

<?php

        dl("php_w32api.dll");

        w32api_register_function("kernel32.dll",
                                 "GetTickCount",
                                 W32_LONG);

        w32api_register_function("User32.dll",
                                 "MessageBoxA",
                                 W32_LONG);

        $ticks = w32api_invoke_function("GetTickCount");

        $secs = floor($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));

        w32api_invoke_function("MessageBoxA",
                                NULL,
                                $str,
                                "Uptime Information",
                                MB_OK);
?>

php_w32api.dll is the only module I'm loading. w32api_invoke_function() *does* exist in CVS and looks like it should work just fine, but apparently something broke when the binaries were built. I can't re-build anything myself since I don't own a copy of Microsoft VC++.