3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Everything you enter here will be executed by our servers. Try it! function doStuff() { $last = 0; $current = 1; yield 1; while ($current<300) { $current = $last + $current; $last = $current - $last; yield $current; } } foreach(doStuff() as $e){ var_dump($e); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 8
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 8
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
filename:       /in/YocAV
function name:  (null)
number of ops:  10
compiled vars:  !0 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   INIT_FCALL                                               'dostuff'
          1        DO_FCALL                                      0  $1      
          2      > FE_RESET_R                                       $2      $1, ->8
          3    > > FE_FETCH_R                                               $2, !0, ->8
   15     4    >   INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                                 
   14     7      > JMP                                                      ->3
          8    >   FE_FREE                                                  $2
   16     9      > RETURN                                                   1

Function dostuff:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 5
Branch analysis from position: 12
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 5
Branch analysis from position: 12
Branch analysis from position: 5
filename:       /in/YocAV
function name:  doStuff
number of ops:  13
compiled vars:  !0 = $last, !1 = $current
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    4     1        ASSIGN                                                   !0, 0
    5     2        ASSIGN                                                   !1, 1
    6     3        YIELD                                                    1
    7     4      > JMP                                                      ->10
    8     5    >   ADD                                              ~5      !0, !1
          6        ASSIGN                                                   !1, ~5
    9     7        SUB                                              ~7      !1, !0
          8        ASSIGN                                                   !0, ~7
   10     9        YIELD                                                    !1
    7    10    >   IS_SMALLER                                               !1, 300
         11      > JMPNZ                                                    ~10, ->5
   12    12    > > GENERATOR_RETURN                                         

End of function dostuff

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.99 ms | 1399 KiB | 16 Q