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<?php function ping_pong() { for ($i = 1; $i <= 10; $i++) { echo 'func - pre yield: ' . $x . PHP_EOL; $val = (yield $i); echo 'func - post yield: ' . $x . PHP_EOL; } } $generator = ping_pong(); foreach ($generator as $value) { echo 'func - pre send: ' . $value . PHP_EOL; echo 'pong: ' . $generator->send($value) . PHP_EOL; echo 'func - post send: ' . $value . PHP_EOL; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 18
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 18
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
filename:       /in/tEhE0
function name:  (null)
number of ops:  20
compiled vars:  !0 = $generator, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                               'ping_pong'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   14     3      > FE_RESET_R                                       $4      !0, ->18
          4    > > FE_FETCH_R                                               $4, !1, ->18
   16     5    >   CONCAT                                           ~5      'func+-+pre+send%3A+', !1
          6        CONCAT                                           ~6      ~5, '%0A'
          7        ECHO                                                     ~6
   17     8        INIT_METHOD_CALL                                         !0, 'send'
          9        SEND_VAR_EX                                              !1
         10        DO_FCALL                                      0  $7      
         11        CONCAT                                           ~8      'pong%3A+', $7
         12        CONCAT                                           ~9      ~8, '%0A'
         13        ECHO                                                     ~9
   18    14        CONCAT                                           ~10     'func+-+post+send%3A+', !1
         15        CONCAT                                           ~11     ~10, '%0A'
         16        ECHO                                                     ~11
   14    17      > JMP                                                      ->4
         18    >   FE_FREE                                                  $4
   19    19      > RETURN                                                   1

Function ping_pong:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 3
Branch analysis from position: 14
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 3
Branch analysis from position: 14
Branch analysis from position: 3
filename:       /in/tEhE0
function name:  ping_pong
number of ops:  15
compiled vars:  !0 = $i, !1 = $x, !2 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   GENERATOR_CREATE                                         
    5     1        ASSIGN                                                   !0, 1
          2      > JMP                                                      ->12
    7     3    >   CONCAT                                           ~4      'func+-+pre+yield%3A+', !1
          4        CONCAT                                           ~5      ~4, '%0A'
          5        ECHO                                                     ~5
    8     6        YIELD                                            $6      !0
          7        ASSIGN                                                   !2, $6
    9     8        CONCAT                                           ~8      'func+-+post+yield%3A+', !1
          9        CONCAT                                           ~9      ~8, '%0A'
         10        ECHO                                                     ~9
    5    11        PRE_INC                                                  !0
         12    >   IS_SMALLER_OR_EQUAL                                      !0, 10
         13      > JMPNZ                                                    ~11, ->3
   11    14    > > GENERATOR_RETURN                                         

End of function ping_pong

Generated using Vulcan Logic Dumper, using php 8.0.0


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