3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gen_one_to_three() { for ($i = 1; $i <= 3; $i++) { // Note that $i is preserved between yields. yield $i; } } $generator = gen_one_to_three(); foreach ($generator as $key => $value) { echo $key ." - $value\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 12
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 12
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/6D65a
function name:  (null)
number of ops:  14
compiled vars:  !0 = $generator, !1 = $value, !2 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'gen_one_to_three'
          1        DO_FCALL                                      0  $3      
          2        ASSIGN                                                   !0, $3
   10     3      > FE_RESET_R                                       $5      !0, ->12
          4    > > FE_FETCH_R                                       ~6      $5, !1, ->12
          5    >   ASSIGN                                                   !2, ~6
   11     6        ROPE_INIT                                     3  ~9      '+-+'
          7        ROPE_ADD                                      1  ~9      ~9, !1
          8        ROPE_END                                      2  ~8      ~9, '%0A'
          9        CONCAT                                           ~11     !2, ~8
         10        ECHO                                                     ~11
   10    11      > JMP                                                      ->4
         12    >   FE_FREE                                                  $5
   12    13      > RETURN                                                   1

Function gen_one_to_three:
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/6D65a
function name:  gen_one_to_three
number of ops:  8
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   GENERATOR_CREATE                                         
    3     1        ASSIGN                                                   !0, 1
          2      > JMP                                                      ->5
    5     3    >   YIELD                                                    !0
    3     4        PRE_INC                                                  !0
          5    >   IS_SMALLER_OR_EQUAL                                      !0, 3
          6      > JMPNZ                                                    ~4, ->3
    7     7    > > GENERATOR_RETURN                                         

End of function gen_one_to_three

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.25 ms | 1399 KiB | 14 Q