3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s= "https://wwww.gogu.ro"; echo preg_replace("[^[:alpha:]&^[:alnum:]]|[&]|[\^]","-",strtolower($s));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/esA5l
function name:  (null)
number of ops:  11
compiled vars:  !0 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'https%3A%2F%2Fwwww.gogu.ro'
    4     1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%5B%5E%5B%3Aalpha%3A%5D%26%5E%5B%3Aalnum%3A%5D%5D%7C%5B%26%5D%7C%5B%5C%5E%5D'
          3        SEND_VAL                                                 '-'
          4        INIT_FCALL                                               'strtolower'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $2      
          7        SEND_VAR                                                 $2
          8        DO_ICALL                                         $3      
          9        ECHO                                                     $3
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
159.29 ms | 1394 KiB | 17 Q