3v4l.org

run code in 300+ PHP versions simultaneously
<?php $SAFE_SCRIPTS = '"/path/to/a.php","/path/to/b.php"'; $file = '/path/to/a.php/../something'; if(strpos($SAFE_SCRIPTS,"\"$file\"")===false) echo 'NOT SAFE!!'; else echo 'safe :-)';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DLSo6
function name:  (null)
number of ops:  15
compiled vars:  !0 = $SAFE_SCRIPTS, !1 = $file
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%22%2Fpath%2Fto%2Fa.php%22%2C%22%2Fpath%2Fto%2Fb.php%22'
    4     1        ASSIGN                                                   !1, '%2Fpath%2Fto%2Fa.php%2F..%2Fsomething'
    6     2        INIT_FCALL                                               'strpos'
          3        SEND_VAR                                                 !0
          4        ROPE_INIT                                     3  ~5      '%22'
          5        ROPE_ADD                                      1  ~5      ~5, !1
          6        ROPE_END                                      2  ~4      ~5, '%22'
          7        SEND_VAL                                                 ~4
          8        DO_ICALL                                         $7      
          9        TYPE_CHECK                                    4          $7
         10      > JMPZ                                                     ~8, ->13
         11    >   ECHO                                                     'NOT+SAFE%21%21'
         12      > JMP                                                      ->14
    7    13    >   ECHO                                                     'safe+%3A-%29'
         14    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.05 ms | 1394 KiB | 15 Q