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<?php $a = 'string'; function b(&$a){ $a = 'bbbb'; } b($a); var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AX238
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'string'
    7     1        INIT_FCALL                                               'b'
          2        SEND_REF                                                 !0
          3        DO_FCALL                                      0          
    8     4        INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Function b:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AX238
function name:  b
number of ops:  3
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        ASSIGN                                                   !0, 'bbbb'
    6     2      > RETURN                                                   null

End of function b

Generated using Vulcan Logic Dumper, using php 8.0.0


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