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<?php $t = microtime(true); var_dump(!preg_match('/^[^\:]++(\:[^\:]++)*$/', '12345678901234567890:12345678901234567890')); echo (microtime(true) - $t);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8lPFJ
function name:  (null)
number of ops:  18
compiled vars:  !0 = $t
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'microtime'
          1        SEND_VAL                                                 <true>
          2        DO_ICALL                                         $1      
          3        ASSIGN                                                   !0, $1
    7     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'preg_match'
          6        SEND_VAL                                                 '%2F%5E%5B%5E%5C%3A%5D%2B%2B%28%5C%3A%5B%5E%5C%3A%5D%2B%2B%29%2A%24%2F'
          7        SEND_VAL                                                 '12345678901234567890%3A12345678901234567890'
          8        DO_ICALL                                         $3      
          9        BOOL_NOT                                         ~4      $3
         10        SEND_VAL                                                 ~4
         11        DO_ICALL                                                 
   10    12        INIT_FCALL                                               'microtime'
         13        SEND_VAL                                                 <true>
         14        DO_ICALL                                         $6      
         15        SUB                                              ~7      $6, !0
         16        ECHO                                                     ~7
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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