3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); ini_set('display_errors', 1); $a = array(); empty($a['asd']);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ts7BK
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'error_reporting'
          1        SEND_VAL                                                 32767
          2        DO_ICALL                                                 
    4     3        INIT_FCALL                                               'ini_set'
          4        SEND_VAL                                                 'display_errors'
          5        SEND_VAL                                                 1
          6        DO_ICALL                                                 
    5     7        ASSIGN                                                   !0, <array>
    7     8        ISSET_ISEMPTY_DIM_OBJ                         1  ~4      !0, 'asd'
          9        FREE                                                     ~4
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
150.57 ms | 1394 KiB | 17 Q