3v4l.org

run code in 300+ PHP versions simultaneously
<?php //define("true",false); -- notice: Constant already defined ... define("TRUE", "love"); define("NAME","Zelia"); echo defined("TRUE"),TRUE; echo "\nUDEF TRUE: ",constant("TRUE"); echo "\n",defined("true"),true;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YCgMJ
function name:  (null)
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'define'
          1        SEND_VAL                                                 'TRUE'
          2        SEND_VAL                                                 'love'
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'define'
          5        SEND_VAL                                                 'NAME'
          6        SEND_VAL                                                 'Zelia'
          7        DO_ICALL                                                 
    5     8        ECHO                                                     <true>
          9        ECHO                                                     <true>
    6    10        ECHO                                                     '%0AUDEF+TRUE%3A+'
         11        INIT_FCALL                                               'constant'
         12        SEND_VAL                                                 'TRUE'
         13        DO_ICALL                                         $2      
         14        ECHO                                                     $2
    7    15        ECHO                                                     '%0A'
         16        ECHO                                                     <true>
         17        ECHO                                                     <true>
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
163.67 ms | 1386 KiB | 17 Q