3v4l.org

run code in 300+ PHP versions simultaneously
<?php $generator = (function() { yield 1; yield 2; })(); $generator->rewind(); echo $generator->current(); foreach($generator as $x) { echo "\nx: $x"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 10, Position 2 = 15
Branch analysis from position: 10
2 jumps found. (Code = 78) Position 1 = 11, Position 2 = 15
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
filename:       /in/l0Tuk
function name:  (null)
number of ops:  17
compiled vars:  !0 = $generator, !1 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2Fl0Tuk%3A3%240'
    5     1        INIT_DYNAMIC_CALL                                        ~2
          2        DO_FCALL                                      0  $3      
    3     3        ASSIGN                                                   !0, $3
    6     4        INIT_METHOD_CALL                                         !0, 'rewind'
          5        DO_FCALL                                      0          
    7     6        INIT_METHOD_CALL                                         !0, 'current'
          7        DO_FCALL                                      0  $6      
          8        ECHO                                                     $6
    8     9      > FE_RESET_R                                       $7      !0, ->15
         10    > > FE_FETCH_R                                               $7, !1, ->15
    9    11    >   NOP                                                      
         12        FAST_CONCAT                                      ~8      '%0Ax%3A+', !1
         13        ECHO                                                     ~8
    8    14      > JMP                                                      ->10
         15    >   FE_FREE                                                  $7
   10    16      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2Fl0Tuk%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/l0Tuk
function name:  {closure}
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    4     1        YIELD                                                    1
          2        YIELD                                                    2
    5     3      > GENERATOR_RETURN                                         

End of function %00%7Bclosure%7D%2Fin%2Fl0Tuk%3A3%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
234.26 ms | 1394 KiB | 13 Q