3v4l.org

run code in 300+ PHP versions simultaneously
<?php function x($step) { for($i=0; $i<=$step;$i++) { yield($i); } } foreach(x(100) as $a) { echo $a; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 7
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/iNmQo
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'x'
          1        SEND_VAL                                                 100
          2        DO_FCALL                                      0  $1      
          3      > FE_RESET_R                                       $2      $1, ->7
          4    > > FE_FETCH_R                                               $2, !0, ->7
   10     5    >   ECHO                                                     !0
    9     6      > JMP                                                      ->4
          7    >   FE_FREE                                                  $2
   11     8      > RETURN                                                   1

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

End of function x

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.7 ms | 1402 KiB | 14 Q