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<?php $a = '011'; var_dump($a); var_dump(is_numeric($a)); var_dump(is_int($a)); var_dump(ctype_digit($a)); echo PHP_EOL; $a = 011; var_dump($a); var_dump(is_numeric($a)); var_dump(is_int($a)); var_dump(ctype_digit($a)); echo PHP_EOL; $a = '11'; var_dump($a); var_dump(is_numeric($a)); var_dump(is_int($a)); var_dump(ctype_digit($a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sPACK
function name:  (null)
number of ops:  63
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '011'
    3     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'is_numeric'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $3      
          8        SEND_VAR                                                 $3
          9        DO_ICALL                                                 
    5    10        INIT_FCALL                                               'var_dump'
         11        TYPE_CHECK                                   16  ~5      !0
         12        SEND_VAL                                                 ~5
         13        DO_ICALL                                                 
    6    14        INIT_FCALL                                               'var_dump'
         15        INIT_FCALL                                               'ctype_digit'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                         $7      
         18        SEND_VAR                                                 $7
         19        DO_ICALL                                                 
    8    20        ECHO                                                     '%0A'
   10    21        ASSIGN                                                   !0, 9
   11    22        INIT_FCALL                                               'var_dump'
         23        SEND_VAR                                                 !0
         24        DO_ICALL                                                 
   12    25        INIT_FCALL                                               'var_dump'
         26        INIT_FCALL                                               'is_numeric'
         27        SEND_VAR                                                 !0
         28        DO_ICALL                                         $11     
         29        SEND_VAR                                                 $11
         30        DO_ICALL                                                 
   13    31        INIT_FCALL                                               'var_dump'
         32        TYPE_CHECK                                   16  ~13     !0
         33        SEND_VAL                                                 ~13
         34        DO_ICALL                                                 
   14    35        INIT_FCALL                                               'var_dump'
         36        INIT_FCALL                                               'ctype_digit'
         37        SEND_VAR                                                 !0
         38        DO_ICALL                                         $15     
         39        SEND_VAR                                                 $15
         40        DO_ICALL                                                 
   16    41        ECHO                                                     '%0A'
   18    42        ASSIGN                                                   !0, '11'
   19    43        INIT_FCALL                                               'var_dump'
         44        SEND_VAR                                                 !0
         45        DO_ICALL                                                 
   20    46        INIT_FCALL                                               'var_dump'
         47        INIT_FCALL                                               'is_numeric'
         48        SEND_VAR                                                 !0
         49        DO_ICALL                                         $19     
         50        SEND_VAR                                                 $19
         51        DO_ICALL                                                 
   21    52        INIT_FCALL                                               'var_dump'
         53        TYPE_CHECK                                   16  ~21     !0
         54        SEND_VAL                                                 ~21
         55        DO_ICALL                                                 
   22    56        INIT_FCALL                                               'var_dump'
         57        INIT_FCALL                                               'ctype_digit'
         58        SEND_VAR                                                 !0
         59        DO_ICALL                                         $23     
         60        SEND_VAR                                                 $23
         61        DO_ICALL                                                 
         62      > RETURN                                                   1

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