- is_infinite: documentation ( source)
- error_reporting: documentation ( source)
- is_finite: documentation ( source)
<?php
error_reporting(0);
$r = 1.0/0.0;
if ( is_finite($r) ) {
if (is_bool($r) && $r === FALSE) {
echo 'not infinite';
}
} else if (is_infinite( $r )){
echo INF;
}