3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a="a-zA-Z0-9.-_~!$&'()*+,;=:@"; echo $a; echo PHO_EOL; echo preg_quote($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/66ElX
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'a-zA-Z0-9.-_%7E%21%24%26%27%28%29%2A%2B%2C%3B%3D%3A%40'
    4     1        ECHO                                                     !0
    5     2        FETCH_CONSTANT                                   ~2      'PHO_EOL'
          3        ECHO                                                     ~2
    6     4        INIT_FCALL                                               'preg_quote'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $3      
          7        ECHO                                                     $3
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.33 ms | 1394 KiB | 15 Q