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<?php // Everything you enter here will be executed by our servers. Try it! function doStuff() { $last = 0; $current = 1; yield 1; while (true) { $current = $last + $current; $last = $current - $last; yield $current; } } for($i=0;$i<10;$i++){ var_dump(doStuff()); }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 2
Branch analysis from position: 10
Branch analysis from position: 2
filename:       /in/pNv4r
function name:  (null)
number of ops:  11
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   ASSIGN                                                   !0, 0
          1      > JMP                                                      ->8
   15     2    >   INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'dostuff'
          4        DO_FCALL                                      0  $2      
          5        SEND_VAR                                                 $2
          6        DO_ICALL                                                 
   14     7        PRE_INC                                                  !0
          8    >   IS_SMALLER                                               !0, 10
          9      > JMPNZ                                                    ~5, ->2
   16    10    > > 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 = 11, Position 2 = 5
Branch analysis from position: 11
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 5
Branch analysis from position: 11
Branch analysis from position: 5
filename:       /in/pNv4r
function name:  doStuff
number of ops:  12
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    > > JMPNZ                                                    <true>, ->5
   12    11    > > GENERATOR_RETURN                                         

End of function dostuff

Generated using Vulcan Logic Dumper, using php 8.0.0


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