3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $arr = array("test"); function bar( $str ){ $val = $this->arr[0]; var_dump($val); if ( is_callable( self::$val ) ){ self::{$this->arr[0]}( $str ); } } static function test($var) { echo "Testing: $var\n"; } } (new Foo)->bar("bla");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/u0orS
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   20     0  E >   NEW                                              $0      'Foo'
          1        DO_FCALL                                      0          
          2        INIT_METHOD_CALL                                         $0, 'bar'
          3        SEND_VAL_EX                                              'bla'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Class Foo:
Function bar:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 12, Position 2 = 17
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/u0orS
function name:  bar
number of ops:  18
compiled vars:  !0 = $str, !1 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
    7     1        FETCH_OBJ_R                                      ~2      'arr'
          2        FETCH_DIM_R                                      ~3      ~2, 0
          3        ASSIGN                                                   !1, ~3
    8     4        INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                                 
    9     7        INIT_FCALL                                               'is_callable'
          8        FETCH_STATIC_PROP_R          unknown             ~6      'val'
          9        SEND_VAL                                                 ~6
         10        DO_ICALL                                         $7      
         11      > JMPZ                                                     $7, ->17
   10    12    >   FETCH_OBJ_R                                      ~8      'arr'
         13        FETCH_DIM_R                                      ~9      ~8, 0
         14        INIT_STATIC_METHOD_CALL                                  ~9
         15        SEND_VAR_EX                                              !0
         16        DO_FCALL                                      0          
   12    17    > > RETURN                                                   null

End of function bar

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/u0orS
function name:  test
number of ops:  6
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   RECV                                             !0      
   15     1        ROPE_INIT                                     3  ~2      'Testing%3A+'
          2        ROPE_ADD                                      1  ~2      ~2, !0
          3        ROPE_END                                      2  ~1      ~2, '%0A'
          4        ECHO                                                     ~1
   16     5      > RETURN                                                   null

End of function test

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
159.76 ms | 1396 KiB | 17 Q