3v4l.org

run code in 500+ PHP versions simultaneously
<?php $echo = "Hello world!"; echoIt($echo); function echoIt($echo = '') { echo $echo; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ju7Wa
function name:  (null)
number of ops:  5
compiled vars:  !0 = $echo
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'Hello+world%21'
    4     1        INIT_FCALL_BY_NAME                                           'echoIt'
          2        SEND_VAR_EX                                                  !0
          3        DO_FCALL                                          0          
    9     4      > RETURN                                                       1

Function echoit:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ju7Wa
function name:  echoIt
number of ops:  3
compiled vars:  !0 = $echo
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    6     0  E >   RECV_INIT                                            !0      ''
    8     1        ECHO                                                         !0
    9     2      > RETURN                                                       null

End of function echoit

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
158.74 ms | 1973 KiB | 13 Q