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<?php function generator() { for($i = 0 ; $i <= 20 ; $i++) { yield $i; } } $generator = generator(); $callback = function($value) { return !($value % 2); }; foreach(new CallbackFilterIterator($generator , $callback) as $value) { echo $value."\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 10, Position 2 = 14
Branch analysis from position: 10
2 jumps found. (Code = 78) Position 1 = 11, Position 2 = 14
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
filename:       /in/6t281
function name:  (null)
number of ops:  16
compiled vars:  !0 = $generator, !1 = $callback, !2 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                               'generator'
          1        DO_FCALL                                      0  $3      
          2        ASSIGN                                                   !0, $3
   13     3        DECLARE_LAMBDA_FUNCTION                          ~5      [0]
          4        ASSIGN                                                   !1, ~5
   18     5        NEW                                              $7      'CallbackFilterIterator'
          6        SEND_VAR_EX                                              !0
          7        SEND_VAR_EX                                              !1
          8        DO_FCALL                                      0          
          9      > FE_RESET_R                                       $9      $7, ->14
         10    > > FE_FETCH_R                                               $9, !2, ->14
   20    11    >   CONCAT                                           ~10     !2, '%0A'
         12        ECHO                                                     ~10
   18    13      > JMP                                                      ->10
         14    >   FE_FREE                                                  $9
   21    15      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6t281
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   RECV                                             !0      
   15     1        MOD                                              ~1      !0, 2
          2        BOOL_NOT                                         ~2      ~1
          3      > RETURN                                                   ~2
   16     4*     > RETURN                                                   null

End of Dynamic Function 0

Function generator:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 7, Position 2 = 3
Branch analysis from position: 7
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 7, Position 2 = 3
Branch analysis from position: 7
Branch analysis from position: 3
filename:       /in/6t281
function name:  generator
number of ops:  8
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    5     1        ASSIGN                                                   !0, 0
          2      > JMP                                                      ->5
    7     3    >   YIELD                                                    !0
    5     4        PRE_INC                                                  !0
          5    >   IS_SMALLER_OR_EQUAL                                      !0, 20
          6      > JMPNZ                                                    ~4, ->3
    9     7    > > GENERATOR_RETURN                                         

End of function generator

Generated using Vulcan Logic Dumper, using php 8.0.0


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232.88 ms | 951 KiB | 14 Q