3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; var_dump("a${a}" instanceof StdClass);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CmQgv
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 5
    3     1        INIT_FCALL                                               'var_dump'
          2        NOP                                                      
          3        FAST_CONCAT                                      ~2      'a', !0
          4        INSTANCEOF                                       ~3      ~2, 'StdClass'
          5        SEND_VAL                                                 ~3
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
171.02 ms | 1394 KiB | 15 Q