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<?php function filter($val) { var_dump(filter_var($val, FILTER_VALIDATE_INT)); } filter(0); filter(''); filter('0'); filter('01'); filter('10'); filter(array()); filter(array(1)); filter(0.2); filter('0.2');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/j4b49
function name:  (null)
number of ops:  28
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'filter'
          1        SEND_VAL                                                 0
          2        DO_FCALL                                      0          
    8     3        INIT_FCALL                                               'filter'
          4        SEND_VAL                                                 ''
          5        DO_FCALL                                      0          
    9     6        INIT_FCALL                                               'filter'
          7        SEND_VAL                                                 '0'
          8        DO_FCALL                                      0          
   10     9        INIT_FCALL                                               'filter'
         10        SEND_VAL                                                 '01'
         11        DO_FCALL                                      0          
   11    12        INIT_FCALL                                               'filter'
         13        SEND_VAL                                                 '10'
         14        DO_FCALL                                      0          
   12    15        INIT_FCALL                                               'filter'
         16        SEND_VAL                                                 <array>
         17        DO_FCALL                                      0          
   13    18        INIT_FCALL                                               'filter'
         19        SEND_VAL                                                 <array>
         20        DO_FCALL                                      0          
   14    21        INIT_FCALL                                               'filter'
         22        SEND_VAL                                                 0.2
         23        DO_FCALL                                      0          
   15    24        INIT_FCALL                                               'filter'
         25        SEND_VAL                                                 '0.2'
         26        DO_FCALL                                      0          
         27      > RETURN                                                   1

Function filter:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/j4b49
function name:  filter
number of ops:  9
compiled vars:  !0 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'filter_var'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 257
          5        DO_ICALL                                         $1      
          6        SEND_VAR                                                 $1
          7        DO_ICALL                                                 
    5     8      > RETURN                                                   null

End of function filter

Generated using Vulcan Logic Dumper, using php 8.0.0


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