3v4l.org

run code in 500+ PHP versions simultaneously
<?php function validateRange(int $number): bool { return $number > 0; } // All outputs are `true`. var_dump(validateRange(' 6 ')); var_dump(validateRange('6.')); var_dump(validateRange('06')); var_dump(validateRange('1e2'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1EnTK
function name:  (null)
number of ops:  25
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   INIT_FCALL                                                   'var_dump'
          1        INIT_FCALL                                                   'validaterange'
          2        SEND_VAL                                                     '+6+'
          3        DO_FCALL                                          0  $0      
          4        SEND_VAR                                                     $0
          5        DO_ICALL                                                     
    9     6        INIT_FCALL                                                   'var_dump'
          7        INIT_FCALL                                                   'validaterange'
          8        SEND_VAL                                                     '6.'
          9        DO_FCALL                                          0  $2      
         10        SEND_VAR                                                     $2
         11        DO_ICALL                                                     
   10    12        INIT_FCALL                                                   'var_dump'
         13        INIT_FCALL                                                   'validaterange'
         14        SEND_VAL                                                     '06'
         15        DO_FCALL                                          0  $4      
         16        SEND_VAR                                                     $4
         17        DO_ICALL                                                     
   11    18        INIT_FCALL                                                   'var_dump'
         19        INIT_FCALL                                                   'validaterange'
         20        SEND_VAL                                                     '1e2'
         21        DO_FCALL                                          0  $6      
         22        SEND_VAR                                                     $6
         23        DO_ICALL                                                     
         24      > RETURN                                                       1

Function validaterange:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1EnTK
function name:  validateRange
number of ops:  6
compiled vars:  !0 = $number
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    4     1        IS_SMALLER                                           ~1      0, !0
          2        VERIFY_RETURN_TYPE                                           ~1
          3      > RETURN                                                       ~1
    5     4*       VERIFY_RETURN_TYPE                                           
          5*     > RETURN                                                       null

End of function validaterange

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
167.06 ms | 1590 KiB | 18 Q