3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $n1 = '7'; $n2 = (float) $n; var_dump($n1); var_dump($n2);
based on KpRDg
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: n in /in/3eqO4 on line 3 string(1) "7" float(0)
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: n in /in/3eqO4 on line 3 string(1) "7" float(0)