3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/^[\p{L}\-\. ]{2,100}$/u'; $subject = 'Łódź'; preg_match($pattern,$subject,$match); var_dump($match);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2nnhS
function name:  (null)
number of ops:  11
compiled vars:  !0 = $pattern, !1 = $subject, !2 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%2F%5E%5B%5Cp%7BL%7D%5C-%5C.+%5D%7B2%2C100%7D%24%2Fu'
    3     1        ASSIGN                                                   !1, '%C5%81%C3%B3d%C5%BA'
    4     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
    5     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
142.62 ms | 1394 KiB | 17 Q