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<?php $val = false; $s = isset($val["bla"]); print "$s"; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Fi8CS
function name:  (null)
number of ops:  6
compiled vars:  !0 = $val, !1 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <false>
    3     1        ISSET_ISEMPTY_DIM_OBJ                         0  ~3      !0, 'bla'
          2        ASSIGN                                                   !1, ~3
    4     3        CAST                                          6  ~5      !1
          4        ECHO                                                     ~5
    5     5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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