3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "<ul><li><span>&#x5B;V_TIMESTAMP_44Q10X5J] </span></li></ul>"; var_dump(preg_match('@[[:alnum:]]@u', $s));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tVlK9A
function name:  (null)
number of ops:  9
compiled vars:  !0 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, '%3Cul%3E%3Cli%3E%3Cspan%3E%26%23x5B%3BV_TIMESTAMP_44Q10X5J%5D+%3C%2Fspan%3E%3C%2Fli%3E%3C%2Ful%3E'
    6     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'preg_match'
          3        SEND_VAL                                                 '%40%5B%5B%3Aalnum%3A%5D%5D%40u'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.69 ms | 963 KiB | 15 Q