3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function __construct() { var_dump(debug_backtrace(true)); } } class B { public function __construct() { new A(); } } new B;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VP8F0
function name:  (null)
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   NEW                                              $0      'B'
          1        DO_FCALL                                      0          
          2        FREE                                                     $0
          3      > RETURN                                                   1

Class A:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VP8F0
function name:  __construct
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'debug_backtrace'
          2        SEND_VAL                                                 <true>
          3        DO_ICALL                                         $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
    7     6      > RETURN                                                   null

End of function __construct

End of class A.

Class B:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VP8F0
function name:  __construct
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   NEW                                              $0      'A'
          1        DO_FCALL                                      0          
          2        FREE                                                     $0
   14     3      > RETURN                                                   null

End of function __construct

End of class B.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
164.13 ms | 1395 KiB | 17 Q