enter

plzwait.php

<?php

/*
C:\Users\bob\Desktop>php plzwait.php
1450303435.52
1450303436.0004
*/

function WaitForPerigee() {
	// wait until the last possible moment so that we have as much of the
	// full second possible to work within.

	$Time = microtime(true);
	time_nanosleep(0,((((int)($Time+1)-$Time)+0.001)*1000000000));

	return;
}

function ReallyWaitForPerigee() {
	// reimplementation to avoid rounding errors from WaitForPerigee.

	$Time = time();
	while(time() === $Time) { }

	return;
}

function DoShit() {
	// this is where you do your work. this demo will just print the time
	// to show that we had our maximum available timeslice.

	echo microtime(true), PHP_EOL;

	return;
}

echo microtime(true), PHP_EOL;
ReallyWaitForPerigee();
DoShit();