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<?php $a = array('test' => true); if (isset($a['test']) && $a['test']) { print "hi"; }
based on hRYE9
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
Jump found. Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
Jump found. Position 1 = -2
Branch analysis from position: 7
Branch analysis from position: 5
filename:       /in/atn5d
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, <array>
   4     1        ISSET_ISEMPTY_DIM_OBJ                       33554432  ~2      !0, 'test'
         2      > JMPZ_EX                                          ~2      ~2, ->5
         3    >   FETCH_DIM_R                                      $3      !0, 'test'
         4        BOOL                                             ~2      $3
         5    > > JMPZ                                                     ~2, ->7
   5     6    >   ECHO                                                     'hi'
         7    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0