3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function test($test = true) { if (isset($test) && !$test) { return 'Yes!'; } return 'No!'; } } $a = new A(); echo $a->test();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KOLmL
function name:  (null)
number of ops:  7
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   NEW                                              $1      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   15     3        INIT_METHOD_CALL                                         !0, 'test'
          4        DO_FCALL                                      0  $4      
          5        ECHO                                                     $4
          6      > RETURN                                                   1

Class A:
Function test:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
filename:       /in/KOLmL
function name:  test
number of ops:  9
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV_INIT                                        !0      <true>
    6     1        ISSET_ISEMPTY_CV                                 ~1      !0
          2      > JMPZ_EX                                          ~1      ~1, ->5
          3    >   BOOL_NOT                                         ~2      !0
          4        BOOL                                             ~1      ~2
          5    > > JMPZ                                                     ~1, ->7
    7     6    > > RETURN                                                   'Yes%21'
   10     7    > > RETURN                                                   'No%21'
   11     8*     > RETURN                                                   null

End of function test

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.89 ms | 1393 KiB | 13 Q