3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match_all('#aaa#', 'bbbbb', $matches); var_dump($matches); var_dump(!!$matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jcEU2
function name:  (null)
number of ops:  14
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_match_all'
          1        SEND_VAL                                                 '%23aaa%23'
          2        SEND_VAL                                                 'bbbbb'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
          5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8        INIT_FCALL                                               'var_dump'
          9        BOOL_NOT                                         ~3      !0
         10        BOOL_NOT                                         ~4      ~3
         11        SEND_VAL                                                 ~4
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.08 ms | 1394 KiB | 17 Q