3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function bar(int $a): int { return $a * 2; } } $foo = new Foo(); echo $foo->bar("2");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2NQ8o
function name:  (null)
number of ops:  8
compiled vars:  !0 = $foo
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   10     0  E >   NEW                                                  $1      'Foo'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
   11     3        INIT_METHOD_CALL                                             !0, 'bar'
          4        SEND_VAL_EX                                                  '2'
          5        DO_FCALL                                          0  $4      
          6        ECHO                                                         $4
          7      > RETURN                                                       1

Class Foo:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2NQ8o
function name:  bar
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV                                                 !0      
    6     1        MUL                                                  ~1      !0, 2
          2        VERIFY_RETURN_TYPE                                           ~1
          3      > RETURN                                                       ~1
    7     4*       VERIFY_RETURN_TYPE                                           
          5*     > RETURN                                                       null

End of function bar

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
155.5 ms | 1451 KiB | 13 Q