3v4l.org

run code in 300+ PHP versions simultaneously
<?php class T { function __toString(){ throw new Exception; } } $t = new T; try { echo strpos('test', $t); } catch (Exception $e) { echo "caught"; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Found catch point at position: 10
Branch analysis from position: 10
2 jumps found. (Code = 107) Position 1 = 11, Position 2 = -2
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DhuBu
function name:  (null)
number of ops:  13
compiled vars:  !0 = $t, !1 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_CLASS                                            't'
    7     1        NEW                                              $2      'T'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    9     4        INIT_FCALL                                               'strpos'
          5        SEND_VAL                                                 'test'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $5      
          8        ECHO                                                     $5
          9      > JMP                                                      ->12
   10    10  E > > CATCH                                       last         'Exception'
   11    11    >   ECHO                                                     'caught'
   12    12    > > RETURN                                                   1

Class T:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 108) Position 1 = -2
filename:       /in/DhuBu
function name:  __toString
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $0      'Exception'
          1        DO_FCALL                                      0          
          2      > THROW                                         0          $0
    4     3*       VERIFY_RETURN_TYPE                                       
          4*     > RETURN                                                   null

End of function __tostring

End of class T.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.72 ms | 1395 KiB | 15 Q