- round: documentation ( source)
- sprintf: documentation ( source)
<?php
$a = 1111111.505;
$round = round($a, 2);
echo "round: " . $round . "\n";
$sprintf = sprintf('%01.2F', $a);
echo "sprintf: " . $sprintf . "\n";
echo bcmul($round, 100). "\n";
echo "round * 100: " . $round . "\n";
echo bcmul($sprintf, 100). "\n";
echo "sprintf * 100: " . $sprintf . "\n";