3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() { static $x = 1; $x += 10; yield $x; $x += 100; yield $x; $x += 1000; yield $x; } $x = foo(); $x->rewind(); $x->rewind(); $x->rewind(); $x->rewind();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4OAUh
function name:  (null)
number of ops:  12
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   INIT_FCALL                                               'foo'
          1        DO_FCALL                                      0  $1      
          2        ASSIGN                                                   !0, $1
   13     3        INIT_METHOD_CALL                                         !0, 'rewind'
          4        DO_FCALL                                      0          
   14     5        INIT_METHOD_CALL                                         !0, 'rewind'
          6        DO_FCALL                                      0          
   15     7        INIT_METHOD_CALL                                         !0, 'rewind'
          8        DO_FCALL                                      0          
   16     9        INIT_METHOD_CALL                                         !0, 'rewind'
         10        DO_FCALL                                      0          
         11      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/4OAUh
function name:  foo
number of ops:  9
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    4     1        BIND_STATIC                                              !0
    5     2        ASSIGN_OP                                     1          !0, 10
    6     3        YIELD                                                    !0
    7     4        ASSIGN_OP                                     1          !0, 100
    8     5        YIELD                                                    !0
    9     6        ASSIGN_OP                                     1          !0, 1000
   10     7        YIELD                                                    !0
   11     8      > GENERATOR_RETURN                                         

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.97 ms | 1397 KiB | 14 Q