3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strtolower(preg_replace('/([a-z])([A-Z])/', '$1_$2', $className)); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/S16Qb
function name:  (null)
number of ops:  10
compiled vars:  !0 = $className
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'strtolower'
          1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%2F%28%5Ba-z%5D%29%28%5BA-Z%5D%29%2F'
          3        SEND_VAL                                                 '%241_%242'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $1      
          6        SEND_VAR                                                 $1
          7        DO_ICALL                                         $2      
          8        ECHO                                                     $2
    3     9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
160.47 ms | 1394 KiB | 17 Q