3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types = 1); $handle = fopen(__FILE__, 'r'); var_dump(flock($handle, LOCK_EX|LOCK_SH)); // only LOCK_SH is honored - php should throw here var_dump(file_get_contents(__FILE__));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4eurQ
function name:  (null)
number of ops:  19
compiled vars:  !0 = $handle
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'fopen'
          1        SEND_VAL                                                     '%2Fin%2F4eurQ'
          2        SEND_VAL                                                     'r'
          3        DO_ICALL                                             $1      
          4        ASSIGN                                                       !0, $1
    4     5        INIT_FCALL                                                   'var_dump'
          6        INIT_FCALL                                                   'flock'
          7        SEND_VAR                                                     !0
          8        SEND_VAL                                                     3
          9        DO_ICALL                                             $3      
         10        SEND_VAR                                                     $3
         11        DO_ICALL                                                     
    5    12        INIT_FCALL                                                   'var_dump'
         13        INIT_FCALL                                                   'file_get_contents'
         14        SEND_VAL                                                     '%2Fin%2F4eurQ'
         15        DO_ICALL                                             $5      
         16        SEND_VAR                                                     $5
         17        DO_ICALL                                                     
         18      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
151.48 ms | 908 KiB | 12 Q