<?php

function beep($freq, $length)
{
	echo "\r                                                                        \r" . str_repeat(' ', intval($freq / 50)) . "|\r";
	system("beep -f $freq -l $length");
}

/*for($i = 2100; $i < 2300; $i += 5)
{
	echo "$i\n";
	beep($i, 100);
}*/

for($count = 0; $count < 3; $count ++)
{
	beep(1000, 500);
	beep(500, 500);
}

for($count = 0; $count < 3; $count ++)
{
	for($freq = 500; $freq < 1000; $freq += 25)
		beep($freq, 10);
	for($freq = 1000; $freq > 500; $freq -= 25)
		beep($freq, 10);
}

for($count = 0; $count < 3; $count ++)
{
	for($freq = 100; $freq < 3000; $freq += 35)
		beep($freq, 15);

	beep($freq, 100);

	for($freq = 3000; $freq > 500; $freq -= (10 + ($freq / 500)))
	{
		beep($freq, 20);
		//echo "$freq\n";
	}
}

?>