3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gen_one_to_three() { for ($i = 1; $i <= 3; $i++) { yield $i; echo $a; } } $generator = gen_one_to_three(); foreach ($generator as $value) { var_dump($value); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 9
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/E5W2J
function name:  (null)
number of ops:  11
compiled vars:  !0 = $generator, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                               'gen_one_to_three'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   12     3      > FE_RESET_R                                       $4      !0, ->9
          4    > > FE_FETCH_R                                               $4, !1, ->9
   14     5    >   INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                                 
   12     8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $4
   15    10      > RETURN                                                   1

Function gen_one_to_three:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 3
Branch analysis from position: 8
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 8, Position 2 = 3
Branch analysis from position: 8
Branch analysis from position: 3
filename:       /in/E5W2J
function name:  gen_one_to_three
number of ops:  9
compiled vars:  !0 = $i, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   GENERATOR_CREATE                                         
    5     1        ASSIGN                                                   !0, 1
          2      > JMP                                                      ->6
    6     3    >   YIELD                                                    !0
    7     4        ECHO                                                     !1
    5     5        PRE_INC                                                  !0
          6    >   IS_SMALLER_OR_EQUAL                                      !0, 3
          7      > JMPNZ                                                    ~5, ->3
    9     8    > > GENERATOR_RETURN                                         

End of function gen_one_to_three

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
147.52 ms | 1399 KiB | 16 Q