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<?php var_dump(preg_match('{\bFirePHP/\d++\.\d++\b}', 'FirePHP/12345678901234567890123456789012345678901234567891234567890123456789123456789012345678901234567890123456789012345678912345678901234567891234567890123456789012345678901234567890123456789123456789012345678912345678901234567890123456789012345678901234567891234567890123456789.12345678901234567890123456789012345678901234567891234567890123456789123456789012345678901234567890123456789012345678912345678901234567891234567890123456789012345678901234567890123456789123456789012345678912345678901234567890123456789012345678901234567891234567890123456789a'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1sJUn
function name:  (null)
number of ops:  8
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%7B%5CbFirePHP%2F%5Cd%2B%2B%5C.%5Cd%2B%2B%5Cb%7D'
          3        SEND_VAL                                                 'FirePHP%2F12345678901234567890123456789012345678901234567891234567890123456789123456789012345678901234567890123456789012345678912345678901234567891234567890123456789012345678901234567890123456789123456789012345678912345678901234567890123456789012345678901234567891234567890123456789.12345678901234567890123456789012345678901234567891234567890123456789123456789012345678901234567890123456789012345678912345678901234567891234567890123456789012345678901234567890123456789123456789012345678912345678901234567890123456789012345678901234567891234567890123456789a'
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.29 ms | 1385 KiB | 17 Q