- base_convert: documentation ( source)
- strcmp: documentation ( source)
- pow: documentation ( source)
<?php
$val = "8/16";
$fr = 10;
$to = 16;
if (strcmp($val, base_convert($val, $fr, $fr) )) {
echo "$val isn't purely in base $fr\n";
} else {
$newval = base_convert($val, $fr, $to);
echo "new val is $newval\n";
}
echo 5 * (pow(10,-1));