- abs: documentation ( source)
- round: documentation ( source)
- rand: documentation ( source)
<?php
$i = $j = 0;
$b = rand(1, 100);
while($i++ < 10000) {
$a = rand(1, 100);
if(abs($a - $b) <= 1) {
$j++;
}
}
print "{$j} von {$i}"."\n";
print round(($j/$i)*100, 2)."%";