3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(dns_get_record('')); var_dump(dns_get_record(null)); var_dum(dns_get_record('php'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/57qtB
function name:  (null)
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'dns_get_record'
          2        SEND_VAL                                                 ''
          3        DO_ICALL                                         $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
    3     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'dns_get_record'
          8        SEND_VAL                                                 null
          9        DO_ICALL                                         $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
    4    12        INIT_FCALL_BY_NAME                                       'var_dum'
         13        INIT_FCALL                                               'dns_get_record'
         14        SEND_VAL                                                 'php'
         15        DO_ICALL                                         $4      
         16        SEND_VAR_NO_REF_EX                                       $4
         17        DO_FCALL                                      0          
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
171.23 ms | 1394 KiB | 17 Q