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<?php var_dump(preg_match("/(?P<foo>\\d{0,2})/si", 'foo bar 42 lol', $m), $m);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Usj4K
function name:  (null)
number of ops:  10
compiled vars:  !0 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%28%3FP%3Cfoo%3E%5Cd%7B0%2C2%7D%29%2Fsi'
          3        SEND_VAL                                                 'foo+bar+42+lol'
          4        SEND_REF                                                 !0
          5        DO_ICALL                                         $1      
          6        SEND_VAR                                                 $1
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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