3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo is_array(new SplFixedArray()) ? 'true': 'false';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/64rCY
function name:  (null)
number of ops:  9
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $0      'SplFixedArray'
          1        DO_FCALL                                      0          
          2        TYPE_CHECK                                  128          $0
          3      > JMPZ                                                     ~2, ->6
          4    >   QM_ASSIGN                                        ~3      'true'
          5      > JMP                                                      ->7
          6    >   QM_ASSIGN                                        ~3      'false'
          7    >   ECHO                                                     ~3
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
163.85 ms | 1393 KiB | 13 Q