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<?php $zero = '0'; var_dump(empty($zero)); $zerozero = (int) '0.0'; var_dump(empty($zerozero));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/avWN2
function name:  (null)
number of ops:  12
compiled vars:  !0 = $zero, !1 = $zerozero
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '0'
    3     1        INIT_FCALL                                               'var_dump'
          2        ISSET_ISEMPTY_CV                                 ~3      !0
          3        SEND_VAL                                                 ~3
          4        DO_ICALL                                                 
    4     5        CAST                                          4  ~5      '0.0'
          6        ASSIGN                                                   !1, ~5
    5     7        INIT_FCALL                                               'var_dump'
          8        ISSET_ISEMPTY_CV                                 ~7      !1
          9        SEND_VAL                                                 ~7
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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