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<?php $str = '0'; if(!$str) { echo 'EMPTY', ','; } else { echo 'NOT EMPTY', ','; } if(empty($str)) { echo 'EMPTY', ','; } else { echo 'NOT EMPTY', ','; } if(!strlen($str)) { echo 'EMPTY', ','; } else { echo 'NOT EMPTY', ','; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 13
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 21
Branch analysis from position: 18
1 jumps found. (Code = 42) Position 1 = 23
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 21
Branch analysis from position: 18
Branch analysis from position: 21
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 13
Branch analysis from position: 10
Branch analysis from position: 13
filename:       /in/2YHZ7
function name:  (null)
number of ops:  24
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '0'
    3     1        BOOL_NOT                                         ~2      !0
          2      > JMPZ                                                     ~2, ->6
    4     3    >   ECHO                                                     'EMPTY'
          4        ECHO                                                     '%2C'
          5      > JMP                                                      ->8
    6     6    >   ECHO                                                     'NOT+EMPTY'
          7        ECHO                                                     '%2C'
    9     8    >   ISSET_ISEMPTY_CV                                         !0
          9      > JMPZ                                                     ~3, ->13
   10    10    >   ECHO                                                     'EMPTY'
         11        ECHO                                                     '%2C'
         12      > JMP                                                      ->15
   12    13    >   ECHO                                                     'NOT+EMPTY'
         14        ECHO                                                     '%2C'
   14    15    >   STRLEN                                           ~4      !0
         16        BOOL_NOT                                         ~5      ~4
         17      > JMPZ                                                     ~5, ->21
   15    18    >   ECHO                                                     'EMPTY'
         19        ECHO                                                     '%2C'
         20      > JMP                                                      ->23
   17    21    >   ECHO                                                     'NOT+EMPTY'
         22        ECHO                                                     '%2C'
   18    23    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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