3v4l.org

run code in 300+ PHP versions simultaneously
<?php #$pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)(/[^/]+)+/$#"; #$pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)/(.*/)?+[/]{0,1}$#"; $pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)(/.*+)+$#"; $pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)(/.*+)+$#"; $pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)(/[^/]+)++/$#"; #"#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)(/.*+)?+$#" #$pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)(/.*+)?+[/]{0,1}$#"; $subject = '/en/user/login/foo/bar/'; var_dump(preg_match($pattern, $subject, $matches), $matches); $subject = '/en/user/login'; var_dump(preg_match($pattern, $subject, $matches), $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bbR1T
function name:  (null)
number of ops:  24
compiled vars:  !0 = $pattern, !1 = $subject, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, '%23%5E%2F%28%5Ba-z%5D%7B2%7D%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%28%2F.%2A%2B%29%2B%24%23'
    6     1        ASSIGN                                                   !0, '%23%5E%2F%28%5Ba-z%5D%7B2%7D%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%28%2F.%2A%2B%29%2B%24%23'
    7     2        ASSIGN                                                   !0, '%23%5E%2F%28%5Ba-z%5D%7B2%7D%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%28%2F%5B%5E%2F%5D%2B%29%2B%2B%2F%24%23'
   11     3        ASSIGN                                                   !1, '%2Fen%2Fuser%2Flogin%2Ffoo%2Fbar%2F'
   13     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'preg_match'
          6        SEND_VAR                                                 !0
          7        SEND_VAR                                                 !1
          8        SEND_REF                                                 !2
          9        DO_ICALL                                         $7      
         10        SEND_VAR                                                 $7
         11        SEND_VAR                                                 !2
         12        DO_ICALL                                                 
   15    13        ASSIGN                                                   !1, '%2Fen%2Fuser%2Flogin'
   16    14        INIT_FCALL                                               'var_dump'
         15        INIT_FCALL                                               'preg_match'
         16        SEND_VAR                                                 !0
         17        SEND_VAR                                                 !1
         18        SEND_REF                                                 !2
         19        DO_ICALL                                         $10     
         20        SEND_VAR                                                 $10
         21        SEND_VAR                                                 !2
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.91 ms | 1387 KiB | 17 Q