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<?php function _empty($value) { return $value ? 'non_empty' : 'empty'; } function _empty_fix($value) { $value = is_numeric($value) ? floatval($value) : $value; return $value ? 'non_empty' : 'empty'; } echo "normal :\n"; echo "\n0 : ", _empty(0); echo "\n0.0 : ", _empty(0.0); echo "\n'0.0' : ", _empty('0.0'); echo "\n\nfix :\n"; echo "\n0 : ", _empty_fix(0); echo "\n0.0 : ", _empty_fix(0.0); echo "\n'0.0' : ", _empty_fix('0.0');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tnf6t
function name:  (null)
number of ops:  33
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   ECHO                                                     'normal+%3A%0A'
   12     1        ECHO                                                     '%0A0+%3A+'
          2        INIT_FCALL                                               '_empty'
          3        SEND_VAL                                                 0
          4        DO_FCALL                                      0  $0      
          5        ECHO                                                     $0
   13     6        ECHO                                                     '%0A0.0+%3A+'
          7        INIT_FCALL                                               '_empty'
          8        SEND_VAL                                                 0
          9        DO_FCALL                                      0  $1      
         10        ECHO                                                     $1
   14    11        ECHO                                                     '%0A%270.0%27+%3A+'
         12        INIT_FCALL                                               '_empty'
         13        SEND_VAL                                                 '0.0'
         14        DO_FCALL                                      0  $2      
         15        ECHO                                                     $2
   16    16        ECHO                                                     '%0A%0Afix+%3A%0A'
   17    17        ECHO                                                     '%0A0+%3A+'
         18        INIT_FCALL                                               '_empty_fix'
         19        SEND_VAL                                                 0
         20        DO_FCALL                                      0  $3      
         21        ECHO                                                     $3
   18    22        ECHO                                                     '%0A0.0+%3A+'
         23        INIT_FCALL                                               '_empty_fix'
         24        SEND_VAL                                                 0
         25        DO_FCALL                                      0  $4      
         26        ECHO                                                     $4
   19    27        ECHO                                                     '%0A%270.0%27+%3A+'
         28        INIT_FCALL                                               '_empty_fix'
         29        SEND_VAL                                                 '0.0'
         30        DO_FCALL                                      0  $5      
         31        ECHO                                                     $5
         32      > RETURN                                                   1

Function _empty:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tnf6t
function name:  _empty
number of ops:  7
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1      > JMPZ                                                     !0, ->4
          2    >   QM_ASSIGN                                        ~1      'non_empty'
          3      > JMP                                                      ->5
          4    >   QM_ASSIGN                                        ~1      'empty'
          5    > > RETURN                                                   ~1
    4     6*     > RETURN                                                   null

End of function _empty

Function _empty_fix:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 8
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
Branch analysis from position: 13
filename:       /in/tnf6t
function name:  _empty_fix
number of ops:  16
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
    7     1        INIT_FCALL                                               'is_numeric'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $1      
          4      > JMPZ                                                     $1, ->8
          5    >   CAST                                          5  ~2      !0
          6        QM_ASSIGN                                        ~3      ~2
          7      > JMP                                                      ->9
          8    >   QM_ASSIGN                                        ~3      !0
          9    >   ASSIGN                                                   !0, ~3
    8    10      > JMPZ                                                     !0, ->13
         11    >   QM_ASSIGN                                        ~5      'non_empty'
         12      > JMP                                                      ->14
         13    >   QM_ASSIGN                                        ~5      'empty'
         14    > > RETURN                                                   ~5
    9    15*     > RETURN                                                   null

End of function _empty_fix

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