- var_dump: documentation ( source)
- floor: documentation ( source)
- ceil: documentation ( source)
<?php
var_dump(ceil(5.4) === floor(5.4));
var_dump(ceil( 5) === floor( 6));
var_dump(ceil( 5) === floor( 5));
var_dump(ceil(5.4) === floor(5.0));
var_dump(ceil(5.0) === floor(5.0));
var_dump(ceil(5.0) === floor( 5));