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<?php if ("" == null) { echo "ohai"; } ?>
based on Ao7XQ
Finding entry points
Branch analysis from position: 0
Jump found. (Code = 43) Position 1 = 1, Position 2 = 2
Branch analysis from position: 1
Jump found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
filename:       /in/CLbJP
function name:  (null)
number of ops:  3
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E > > JMPZ                                                     <true>, ->2
   3     1    >   ECHO                                                     'ohai'
   5     2    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0