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<?php echo 'boolean filter:' . PHP_EOL; $on = filter_var('on', FILTER_VALIDATE_BOOLEAN); $true = filter_var('true', FILTER_VALIDATE_BOOLEAN); $one = filter_var('1', FILTER_VALIDATE_BOOLEAN); var_dump($on, $true, $one); $false = filter_var('everythingElse', FILTER_VALIDATE_BOOLEAN); var_dump($false);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IPeQ8
function name:  (null)
number of ops:  30
compiled vars:  !0 = $on, !1 = $true, !2 = $one, !3 = $false
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ECHO                                                     'boolean+filter%3A%0A'
    4     1        INIT_FCALL                                               'filter_var'
          2        SEND_VAL                                                 'on'
          3        SEND_VAL                                                 258
          4        DO_ICALL                                         $4      
          5        ASSIGN                                                   !0, $4
    5     6        INIT_FCALL                                               'filter_var'
          7        SEND_VAL                                                 'true'
          8        SEND_VAL                                                 258
          9        DO_ICALL                                         $6      
         10        ASSIGN                                                   !1, $6
    6    11        INIT_FCALL                                               'filter_var'
         12        SEND_VAL                                                 '1'
         13        SEND_VAL                                                 258
         14        DO_ICALL                                         $8      
         15        ASSIGN                                                   !2, $8
    8    16        INIT_FCALL                                               'var_dump'
         17        SEND_VAR                                                 !0
         18        SEND_VAR                                                 !1
         19        SEND_VAR                                                 !2
         20        DO_ICALL                                                 
   10    21        INIT_FCALL                                               'filter_var'
         22        SEND_VAL                                                 'everythingElse'
         23        SEND_VAL                                                 258
         24        DO_ICALL                                         $11     
         25        ASSIGN                                                   !3, $11
   12    26        INIT_FCALL                                               'var_dump'
         27        SEND_VAR                                                 !3
         28        DO_ICALL                                                 
         29      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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