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<?php function test() { echo $var, PHP_EOL; // Notice: Undefined variable: var global $var; echo $var, PHP_EOL; // blue unset($var); echo $var, PHP_EOL; // Notice: Undefined variable: var global $var; echo $var, PHP_EOL; // blue $var = 'red'; echo $var, PHP_EOL; // red unset($var); echo $var, PHP_EOL; // Notice: Undefined variable: var global $var; echo $var, PHP_EOL; // red } $var = 'blue'; echo $var, PHP_EOL; // blue test(); echo $var, PHP_EOL; // red
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BGHlu
function name:  (null)
number of ops:  8
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   22     0  E >   ASSIGN                                                   !0, 'blue'
   23     1        ECHO                                                     !0
          2        ECHO                                                     '%0A'
   24     3        INIT_FCALL                                               'test'
          4        DO_FCALL                                      0          
   25     5        ECHO                                                     !0
          6        ECHO                                                     '%0A'
          7      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BGHlu
function name:  test
number of ops:  21
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   ECHO                                                     !0
          1        ECHO                                                     '%0A'
    7     2        BIND_GLOBAL                                              !0, 'var'
    8     3        ECHO                                                     !0
          4        ECHO                                                     '%0A'
    9     5        UNSET_CV                                                 !0
   10     6        ECHO                                                     !0
          7        ECHO                                                     '%0A'
   11     8        BIND_GLOBAL                                              !0, 'var'
   12     9        ECHO                                                     !0
         10        ECHO                                                     '%0A'
   14    11        ASSIGN                                                   !0, 'red'
   15    12        ECHO                                                     !0
         13        ECHO                                                     '%0A'
   16    14        UNSET_CV                                                 !0
   17    15        ECHO                                                     !0
         16        ECHO                                                     '%0A'
   18    17        BIND_GLOBAL                                              !0, 'var'
   19    18        ECHO                                                     !0
         19        ECHO                                                     '%0A'
   20    20      > RETURN                                                   null

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


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