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<?php var_dump(is_int('700007')); var_dump(is_int('0700007')); var_dump(is_numeric('700007')); var_dump(is_numeric('0700007')); var_dump(filter_var('700007', FILTER_VALIDATE_INT)); var_dump(filter_var('0700007', FILTER_VALIDATE_INT));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8pXgY
function name:  (null)
number of ops:  35
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'var_dump'
          1        TYPE_CHECK                                   16  ~0      '700007'
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
    5     4        INIT_FCALL                                               'var_dump'
          5        TYPE_CHECK                                   16  ~2      '0700007'
          6        SEND_VAL                                                 ~2
          7        DO_ICALL                                                 
    6     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'is_numeric'
         10        SEND_VAL                                                 '700007'
         11        DO_ICALL                                         $4      
         12        SEND_VAR                                                 $4
         13        DO_ICALL                                                 
    7    14        INIT_FCALL                                               'var_dump'
         15        INIT_FCALL                                               'is_numeric'
         16        SEND_VAL                                                 '0700007'
         17        DO_ICALL                                         $6      
         18        SEND_VAR                                                 $6
         19        DO_ICALL                                                 
    8    20        INIT_FCALL                                               'var_dump'
         21        INIT_FCALL                                               'filter_var'
         22        SEND_VAL                                                 '700007'
         23        SEND_VAL                                                 257
         24        DO_ICALL                                         $8      
         25        SEND_VAR                                                 $8
         26        DO_ICALL                                                 
    9    27        INIT_FCALL                                               'var_dump'
         28        INIT_FCALL                                               'filter_var'
         29        SEND_VAL                                                 '0700007'
         30        SEND_VAL                                                 257
         31        DO_ICALL                                         $10     
         32        SEND_VAR                                                 $10
         33        DO_ICALL                                                 
         34      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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