3v4l.org

run code in 300+ PHP versions simultaneously
<?php $source = [ <<<'EOD' \n EOD , <<<'EOD' \\n EOD , <<<'EOD' \\\n EOD ]; var_dump(preg_replace('~\\\\.(*SKIP)(?<=n)~', "\n", $source));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QoG8m
function name:  (null)
number of ops:  10
compiled vars:  !0 = $source
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   14     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'preg_replace'
          3        SEND_VAL                                                 '%7E%5C%5C.%28%2ASKIP%29%28%3F%3C%3Dn%29%7E'
          4        SEND_VAL                                                 '%0A'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $2      
          7        SEND_VAR                                                 $2
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
139.01 ms | 997 KiB | 15 Q