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<?php $a = NULL; if (is_null($a)) { echo "The variable is set to NULL."; } /* echo isset($a)?'true':'false'; */
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/oph0B
function name:  (null)
number of ops:  5
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    4     1        TYPE_CHECK                                    2          !0
          2      > JMPZ                                                     ~2, ->4
          3    >   ECHO                                                     'The+variable+is+set+to+NULL.'
    6     4    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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