3v4l.org

run code in 300+ PHP versions simultaneously
<?php function bla(&$test){ $test=2; return $test; } $x='qqq'; bla($x); echo $x;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/prZ5e
function name:  (null)
number of ops:  6
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, 'qqq'
   10     1        INIT_FCALL                                               'bla'
          2        SEND_REF                                                 !0
          3        DO_FCALL                                      0          
   11     4        ECHO                                                     !0
          5      > RETURN                                                   1

Function bla:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/prZ5e
function name:  bla
number of ops:  4
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        ASSIGN                                                   !0, 2
    5     2      > RETURN                                                   !0
    6     3*     > RETURN                                                   null

End of function bla

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.71 ms | 1396 KiB | 14 Q