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<?php $str = "Mozilla/4.5 [en] (X11; U; Linux 2.2.9 i586)"; preg_match('/;/', $str, $matches, PREG_OFFSET_CAPTURE, 0); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/q8iSf
function name:  (null)
number of ops:  12
compiled vars:  !0 = $str, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'Mozilla%2F4.5+%5Ben%5D+%28X11%3B+U%3B+Linux+2.2.9+i586%29'
    5     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%3B%2F'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        SEND_VAL                                                 256
          6        SEND_VAL                                                 0
          7        DO_ICALL                                                 
    7     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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