3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = "2f9"; for($i = 0; $i < 50; $i++) { print "$a\n"; $a++; }
Output for 4.3.0 - 7.1.0
2f9 2g0 2g1 2g2 2g3 2g4 2g5 2g6 2g7 2g8 2g9 2h0 2h1 2h2 2h3 2h4 2h5 2h6 2h7 2h8 2h9 2i0 2i1 2i2 2i3 2i4 2i5 2i6 2i7 2i8 2i9 2j0 2j1 2j2 2j3 2j4 2j5 2j6 2j7 2j8 2j9 2k0 2k1 2k2 2k3 2k4 2k5 2k6 2k7 2k8