3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name = 'foo'; echo preg_replace( '/[\s\(\)"\\\\]/', '\\$1', $name );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jh2MX
function name:  (null)
number of ops:  8
compiled vars:  !0 = $name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'foo'
    4     1        INIT_FCALL                                               'preg_replace'
    5     2        SEND_VAL                                                 '%2F%5B%5Cs%5C%28%5C%29%22%5C%5C%5D%2F'
    6     3        SEND_VAL                                                 '%5C%241'
    7     4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        ECHO                                                     $2
    8     7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
150.12 ms | 1393 KiB | 15 Q