3v4l.org

run code in 500+ PHP versions simultaneously
<?php function a($val) { $maxValue = (int) (\PHP_INT_MAX / 1000); $value = $val * 1000; echo 'Value: '.\gettype($val).' '.$val.PHP_EOL; echo 'Timer: '.\gettype($value).' '.$value.PHP_EOL; echo 'Casted: '.((int) $value).PHP_EOL; echo 'Overflow: '.\var_export($val > $maxValue, true).PHP_EOL; echo 'Overflow <0: '.\var_export(((int) $value) <= 0 && $val > 0, true).PHP_EOL; echo 'PHP Overflow: '.\var_export($value > \PHP_INT_MAX, true).PHP_EOL; echo 'Overflow combined: '.\var_export($value > \PHP_INT_MAX || (((int) $value) <= 0 && $val > 0), true).PHP_EOL; echo 'Supposed to fail: '.\var_export(\gettype($value) === 'double', true).PHP_EOL; echo PHP_EOL; } $maxValue = (int) (\PHP_INT_MAX / 1000); echo 'Max value: '.$maxValue.PHP_EOL; echo 'Max PHP value: '.\PHP_INT_MAX.PHP_EOL.PHP_EOL; a($maxValue); a($maxValue - 1); a($maxValue + 1); a($maxValue + 10); a($maxValue + 10000000); a(\PHP_INT_MAX); a(\PHP_INT_MAX + 1); a(\PHP_INT_MAX + 10); a(\PHP_INT_MAX + 100); a(\PHP_INT_MAX + 10000000); a(\PHP_INT_MAX * 1000);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TIkG3
function name:  (null)
number of ops:  44
compiled vars:  !0 = $maxValue
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   19     0  E >   CAST                                              4  ~1      9.22337e+15
          1        ASSIGN                                                       !0, ~1
   20     2        CONCAT                                               ~3      'Max+value%3A+', !0
          3        CONCAT                                               ~4      ~3, '%0A'
          4        ECHO                                                         ~4
   21     5        ECHO                                                         'Max+PHP+value%3A+9223372036854775807%0A%0A'
   23     6        INIT_FCALL                                                   'a'
          7        SEND_VAR                                                     !0
          8        DO_FCALL                                          0          
   24     9        INIT_FCALL                                                   'a'
         10        SUB                                                  ~6      !0, 1
         11        SEND_VAL                                                     ~6
         12        DO_FCALL                                          0          
   25    13        INIT_FCALL                                                   'a'
         14        ADD                                                  ~8      !0, 1
         15        SEND_VAL                                                     ~8
         16        DO_FCALL                                          0          
   26    17        INIT_FCALL                                                   'a'
         18        ADD                                                  ~10     !0, 10
         19        SEND_VAL                                                     ~10
         20        DO_FCALL                                          0          
   27    21        INIT_FCALL                                                   'a'
         22        ADD                                                  ~12     !0, 10000000
         23        SEND_VAL                                                     ~12
         24        DO_FCALL                                          0          
   28    25        INIT_FCALL                                                   'a'
         26        SEND_VAL                                                     9223372036854775807
         27        DO_FCALL                                          0          
   29    28        INIT_FCALL                                                   'a'
         29        SEND_VAL                                                     9.22337e+18
         30        DO_FCALL                                          0          
   30    31        INIT_FCALL                                                   'a'
         32        SEND_VAL                                                     9.22337e+18
         33        DO_FCALL                                          0          
   31    34        INIT_FCALL                                                   'a'
         35        SEND_VAL                                                     9.22337e+18
         36        DO_FCALL                                          0          
   32    37        INIT_FCALL                                                   'a'
         38        SEND_VAL                                                     9.22337e+18
         39        DO_FCALL                                          0          
   33    40        INIT_FCALL                                                   'a'
         41        SEND_VAL                                                     9.22337e+21
         42        DO_FCALL                                          0          
         43      > RETURN                                                       1

Function a:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 33, Position 2 = 35
Branch analysis from position: 33
2 jumps found. (Code = 47) Position 1 = 52, Position 2 = 58
Branch analysis from position: 52
2 jumps found. (Code = 46) Position 1 = 55, Position 2 = 57
Branch analysis from position: 55
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 57
Branch analysis from position: 58
Branch analysis from position: 35
filename:       /in/TIkG3
function name:  a
number of ops:  75
compiled vars:  !0 = $val, !1 = $maxValue, !2 = $value
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    4     1        CAST                                              4  ~3      9.22337e+15
          2        ASSIGN                                                       !1, ~3
    5     3        MUL                                                  ~5      !0, 1000
          4        ASSIGN                                                       !2, ~5
    7     5        GET_TYPE                                             ~7      !0
          6        CONCAT                                               ~8      'Value%3A+', ~7
          7        CONCAT                                               ~9      ~8, '+'
          8        CONCAT                                               ~10     ~9, !0
          9        CONCAT                                               ~11     ~10, '%0A'
         10        ECHO                                                         ~11
    8    11        GET_TYPE                                             ~12     !2
         12        CONCAT                                               ~13     'Timer%3A+', ~12
         13        CONCAT                                               ~14     ~13, '+'
         14        CONCAT                                               ~15     ~14, !2
         15        CONCAT                                               ~16     ~15, '%0A'
         16        ECHO                                                         ~16
    9    17        CAST                                              4  ~17     !2
         18        CONCAT                                               ~18     'Casted%3A+', ~17
         19        CONCAT                                               ~19     ~18, '%0A'
         20        ECHO                                                         ~19
   10    21        INIT_FCALL                                                   'var_export'
         22        IS_SMALLER                                           ~20     !1, !0
         23        SEND_VAL                                                     ~20
         24        SEND_VAL                                                     <true>
         25        DO_ICALL                                             $21     
         26        CONCAT                                               ~22     'Overflow%3A+', $21
         27        CONCAT                                               ~23     ~22, '%0A'
         28        ECHO                                                         ~23
   11    29        INIT_FCALL                                                   'var_export'
         30        CAST                                              4  ~24     !2
         31        IS_SMALLER_OR_EQUAL                                  ~25     ~24, 0
         32      > JMPZ_EX                                              ~25     ~25, ->35
         33    >   IS_SMALLER                                           ~26     0, !0
         34        BOOL                                                 ~25     ~26
         35    >   SEND_VAL                                                     ~25
         36        SEND_VAL                                                     <true>
         37        DO_ICALL                                             $27     
         38        CONCAT                                               ~28     'Overflow+%3C0%3A+', $27
         39        CONCAT                                               ~29     ~28, '%0A'
         40        ECHO                                                         ~29
   12    41        INIT_FCALL                                                   'var_export'
         42        IS_SMALLER                                           ~30     9223372036854775807, !2
         43        SEND_VAL                                                     ~30
         44        SEND_VAL                                                     <true>
         45        DO_ICALL                                             $31     
         46        CONCAT                                               ~32     'PHP+Overflow%3A+', $31
         47        CONCAT                                               ~33     ~32, '%0A'
         48        ECHO                                                         ~33
   13    49        INIT_FCALL                                                   'var_export'
         50        IS_SMALLER                                           ~34     9223372036854775807, !2
         51      > JMPNZ_EX                                             ~34     ~34, ->58
         52    >   CAST                                              4  ~35     !2
         53        IS_SMALLER_OR_EQUAL                                  ~36     ~35, 0
         54      > JMPZ_EX                                              ~36     ~36, ->57
         55    >   IS_SMALLER                                           ~37     0, !0
         56        BOOL                                                 ~36     ~37
         57    >   BOOL                                                 ~34     ~36
         58    >   SEND_VAL                                                     ~34
         59        SEND_VAL                                                     <true>
         60        DO_ICALL                                             $38     
         61        CONCAT                                               ~39     'Overflow+combined%3A+', $38
         62        CONCAT                                               ~40     ~39, '%0A'
         63        ECHO                                                         ~40
   14    64        INIT_FCALL                                                   'var_export'
         65        GET_TYPE                                             ~41     !2
         66        IS_IDENTICAL                                         ~42     ~41, 'double'
         67        SEND_VAL                                                     ~42
         68        SEND_VAL                                                     <true>
         69        DO_ICALL                                             $43     
         70        CONCAT                                               ~44     'Supposed+to+fail%3A+', $43
         71        CONCAT                                               ~45     ~44, '%0A'
         72        ECHO                                                         ~45
   16    73        ECHO                                                         '%0A'
   17    74      > RETURN                                                       null

End of function a

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
165.72 ms | 2645 KiB | 25 Q