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<?php $null = null; $cast = (string)$null; if ($cast === null) { echo 'IS NULL'; } elseif ($cast === '') { echo 'EMPTY'; } else { echo $cast; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rFQNR
function name:  (null)
number of ops:  13
compiled vars:  !0 = $null, !1 = $cast
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    4     1        CAST                                          6  ~3      !0
          2        ASSIGN                                                   !1, ~3
    6     3        TYPE_CHECK                                    2          !1
          4      > JMPZ                                                     ~5, ->7
    8     5    >   ECHO                                                     'IS+NULL'
          6      > JMP                                                      ->12
    9     7    >   IS_IDENTICAL                                             !1, ''
          8      > JMPZ                                                     ~6, ->11
   10     9    >   ECHO                                                     'EMPTY'
         10      > JMP                                                      ->12
   12    11    >   ECHO                                                     !1
   13    12    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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152.46 ms | 1393 KiB | 13 Q