3v4l.org

run code in 300+ PHP versions simultaneously
<?php $val = gmp_init('1'); var_dump(json_encode($val)); var_dump(json_last_error()); var_dump(PHP_VERSION_ID >= 50500 ? json_last_error_msg() : NULL);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 17, Position 2 = 21
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 22
Branch analysis from position: 22
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HftgM
function name:  (null)
number of ops:  25
compiled vars:  !0 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL_BY_NAME                                       'gmp_init'
          1        SEND_VAL_EX                                              '1'
          2        DO_FCALL                                      0  $1      
          3        ASSIGN                                                   !0, $1
    3     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'json_encode'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $3      
          8        SEND_VAR                                                 $3
          9        DO_ICALL                                                 
    4    10        INIT_FCALL                                               'var_dump'
         11        INIT_FCALL                                               'json_last_error'
         12        DO_ICALL                                         $5      
         13        SEND_VAR                                                 $5
         14        DO_ICALL                                                 
    5    15        INIT_FCALL                                               'var_dump'
         16      > JMPZ                                                     <true>, ->21
         17    >   INIT_FCALL                                               'json_last_error_msg'
         18        DO_ICALL                                         $7      
         19        QM_ASSIGN                                        ~8      $7
         20      > JMP                                                      ->22
         21    >   QM_ASSIGN                                        ~8      null
         22    >   SEND_VAL                                                 ~8
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
166.01 ms | 1399 KiB | 24 Q