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<?php $pattern="/\(((?>[^()]+)|(?R))*\)/"; $str = <<< LOL (def a (x) (+ 1 x)) (print (a 1)) LOL; preg_match_all($pattern,$str,$out); var_dump($out[0]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EKgtR
function name:  (null)
number of ops:  12
compiled vars:  !0 = $pattern, !1 = $str, !2 = $out
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2F%5C%28%28%28%3F%3E%5B%5E%28%29%5D%2B%29%7C%28%3FR%29%29%2A%5C%29%2F'
    6     1        ASSIGN                                                   !1, '%28def+a%0A++%28x%29+%28%2B+1+x%29%29%0A%28print+%28a+1%29%29'
   13     2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
   15     7        INIT_FCALL                                               'var_dump'
          8        FETCH_DIM_R                                      ~6      !2, 0
          9        SEND_VAL                                                 ~6
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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