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<?php var_dump( (string) true, filter_var(true, FILTER_VALIDATE_INT), (string) false, filter_var(false, FILTER_VALIDATE_INT), (string) 1.1, filter_var(1.1, FILTER_VALIDATE_INT), (string) 0.0, filter_var(0.0, FILTER_VALIDATE_INT), (string) '0.0nb', filter_var('0.0', FILTER_VALIDATE_INT), (string) '-0.0', filter_var('-0.0', FILTER_VALIDATE_INT) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kh4VP
function name:  (null)
number of ops:  45
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
    4     1        CAST                                          6  ~0      <true>
          2        SEND_VAL                                                 ~0
          3        INIT_FCALL                                               'filter_var'
          4        SEND_VAL                                                 <true>
          5        SEND_VAL                                                 257
          6        DO_ICALL                                         $1      
          7        SEND_VAR                                                 $1
    5     8        CAST                                          6  ~2      <false>
          9        SEND_VAL                                                 ~2
         10        INIT_FCALL                                               'filter_var'
         11        SEND_VAL                                                 <false>
         12        SEND_VAL                                                 257
         13        DO_ICALL                                         $3      
         14        SEND_VAR                                                 $3
    6    15        CAST                                          6  ~4      1.1
         16        SEND_VAL                                                 ~4
         17        INIT_FCALL                                               'filter_var'
         18        SEND_VAL                                                 1.1
         19        SEND_VAL                                                 257
         20        DO_ICALL                                         $5      
         21        SEND_VAR                                                 $5
    7    22        CAST                                          6  ~6      0
         23        SEND_VAL                                                 ~6
         24        INIT_FCALL                                               'filter_var'
         25        SEND_VAL                                                 0
         26        SEND_VAL                                                 257
         27        DO_ICALL                                         $7      
         28        SEND_VAR                                                 $7
    8    29        CAST                                          6  ~8      '0.0nb'
         30        SEND_VAL                                                 ~8
         31        INIT_FCALL                                               'filter_var'
         32        SEND_VAL                                                 '0.0'
         33        SEND_VAL                                                 257
         34        DO_ICALL                                         $9      
         35        SEND_VAR                                                 $9
    9    36        CAST                                          6  ~10     '-0.0'
         37        SEND_VAL                                                 ~10
         38        INIT_FCALL                                               'filter_var'
         39        SEND_VAL                                                 '-0.0'
         40        SEND_VAL                                                 257
         41        DO_ICALL                                         $11     
         42        SEND_VAR                                                 $11
         43        DO_ICALL                                                 
   10    44      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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