3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_substr('осем', 0, null, '8bit');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JQEls
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'mb_substr'
          1        SEND_VAL                                                 '%D0%BE%D1%81%D0%B5%D0%BC'
          2        SEND_VAL                                                 0
          3        SEND_VAL                                                 null
          4        SEND_VAL                                                 '8bit'
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.32 ms | 1393 KiB | 15 Q