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<?php function nums() { for ($i = 0; $i < 5; ++$i) { echo "aa".$i; //get a value from the caller $cmd = (yield $i); var_dump('cmd', $cmd); if($cmd == 'stop') { //exit the function } } } $gen = nums(); foreach($gen as $v) { if($v == 3) { $send = $gen->send('stop'); var_dump("send ",$send); } //if (isset($send)) var_dump($send); echo "--{$v}\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 20
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 20
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 15
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 15
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
filename:       /in/UkkXE
function name:  (null)
number of ops:  22
compiled vars:  !0 = $gen, !1 = $v, !2 = $send
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   INIT_FCALL                                               'nums'
          1        DO_FCALL                                      0  $3      
          2        ASSIGN                                                   !0, $3
   20     3      > FE_RESET_R                                       $5      !0, ->20
          4    > > FE_FETCH_R                                               $5, !1, ->20
   22     5    >   IS_EQUAL                                                 !1, 3
          6      > JMPZ                                                     ~6, ->15
   23     7    >   INIT_METHOD_CALL                                         !0, 'send'
          8        SEND_VAL_EX                                              'stop'
          9        DO_FCALL                                      0  $7      
         10        ASSIGN                                                   !2, $7
   24    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAL                                                 'send+'
         13        SEND_VAR                                                 !2
         14        DO_ICALL                                                 
   29    15    >   ROPE_INIT                                     3  ~11     '--'
         16        ROPE_ADD                                      1  ~11     ~11, !1
         17        ROPE_END                                      2  ~10     ~11, '%0A'
         18        ECHO                                                     ~10
   20    19      > JMP                                                      ->4
         20    >   FE_FREE                                                  $5
   30    21      > RETURN                                                   1

Function nums:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
2 jumps found. (Code = 44) Position 1 = 16, Position 2 = 3
Branch analysis from position: 16
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 13
Branch analysis from position: 13
2 jumps found. (Code = 44) Position 1 = 16, Position 2 = 3
Branch analysis from position: 16
Branch analysis from position: 3
Branch analysis from position: 13
filename:       /in/UkkXE
function name:  nums
number of ops:  17
compiled vars:  !0 = $i, !1 = $cmd
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    4     1        ASSIGN                                                   !0, 0
          2      > JMP                                                      ->14
    5     3    >   CONCAT                                           ~3      'aa', !0
          4        ECHO                                                     ~3
    8     5        YIELD                                            $4      !0
          6        ASSIGN                                                   !1, $4
   12     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAL                                                 'cmd'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
   13    11        IS_EQUAL                                                 !1, 'stop'
         12      > JMPZ                                                     ~7, ->13
    4    13    >   PRE_INC                                                  !0
         14    >   IS_SMALLER                                               !0, 5
         15      > JMPNZ                                                    ~9, ->3
   17    16    > > GENERATOR_RETURN                                         

End of function nums

Generated using Vulcan Logic Dumper, using php 8.0.0


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155.15 ms | 1403 KiB | 16 Q