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<?php $zero = '0'; var_dump(empty($zero)); $zerozero = '0.0'; var_dump(empty($zerozero)); $zerozeronull = NULL; var_dump(empty($zerozeronull));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mdeMg
function name:  (null)
number of ops:  16
compiled vars:  !0 = $zero, !1 = $zerozero, !2 = $zerozeronull
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                                 ~4      !0
          3        SEND_VAL                                                 ~4
          4        DO_ICALL                                                 
    4     5        ASSIGN                                                   !1, '0.0'
    5     6        INIT_FCALL                                               'var_dump'
          7        ISSET_ISEMPTY_CV                                 ~7      !1
          8        SEND_VAL                                                 ~7
          9        DO_ICALL                                                 
    6    10        ASSIGN                                                   !2, null
    7    11        INIT_FCALL                                               'var_dump'
         12        ISSET_ISEMPTY_CV                                 ~10     !2
         13        SEND_VAL                                                 ~10
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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