$selectIndex = sqrt(count($inputString) / 2);
$output = fopen('rank.out', 'w+');
$readStartTime = microtime(true);
for ($i = 0; $i < 1000; $i++) {
$waveletTree->rank($rankIndex, $testLetter);
}
$readEndTime = microtime(true);
$readTimeElapsed = ($readEndTime - $readStartTime) * 1000;
fprintf($output, "%.16f", $readTimeElapsed);
fflush($output);
fclose($output);
print "finished rank\n";
$output = fopen('access.out', 'w+');
$readStartTime = microtime(true);
for ($i = 0; $i < 1000; $i++) {
$waveletTree->access($rankIndex);
}
$readEndTime = microtime(true);
$readTimeElapsed = ($readEndTime - $readStartTime) * 1000;
fprintf($output, "%.16f", $readTimeElapsed);
fflush($output);
fclose($output);
print "finished access\n";
$output = fopen('select.out', 'w+');
$readStartTime = microtime(true);
for ($i = 0; $i < 10; $i++) {
$waveletTree->select($selectIndex, $testLetter);
}
$readEndTime = microtime(true);
$readTimeElapsed = ($readEndTime - $readStartTime) * 10;
fprintf($output, "%.16f", $readTimeElapsed);
