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<?php $x = 'cat'; $closure = function () use (&$x) { return $x == 'dog'; }; var_dump($closure()); $x = 'dog'; var_dump($closure());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Tp8rQ
function name:  (null)
number of ops:  16
compiled vars:  !0 = $x, !1 = $closure
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    1     0  E >   ASSIGN                                                   !0, 'cat'
    2     1        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FTp8rQ%3A2%240'
          2        BIND_LEXICAL                                             ~3, !0
          3        ASSIGN                                                   !1, ~3
    3     4        INIT_FCALL                                               'var_dump'
          5        INIT_DYNAMIC_CALL                                        !1
          6        DO_FCALL                                      0  $5      
          7        SEND_VAR                                                 $5
          8        DO_ICALL                                                 
    4     9        ASSIGN                                                   !0, 'dog'
    5    10        INIT_FCALL                                               'var_dump'
         11        INIT_DYNAMIC_CALL                                        !1
         12        DO_FCALL                                      0  $8      
         13        SEND_VAR                                                 $8
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FTp8rQ%3A2%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Tp8rQ
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   BIND_STATIC                                              !0
          1        IS_EQUAL                                         ~1      !0, 'dog'
          2      > RETURN                                                   ~1
          3*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FTp8rQ%3A2%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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