3v4l.org

run code in 500+ PHP versions simultaneously
<?php $trim = function($str) { return preg_replace("~(?|\({2,}" . ($p = "(\(((?:[^()]*|(?1))*)\))") . "\){2,}|^(((\([^()]+\))+))$|$p)~", '$2', $str); }; echo $trim('((((A))))'), "\n"; echo $trim('(((((B+C)*A)*(F))))'), "\n"; echo $trim('(A+B)(B+C)'), "\n"; echo $trim('(((((B+C)*A))))'), "\n"; echo str_repeat('-',15), PHP_EOL; echo $trim('((A+B)+C)'), "\n"; echo $trim('(((A+B))+C)'), "\n"; echo $trim('((((A+B)+C))'), "\n"; echo $trim('(A+(B+C))'), "\n"; echo $trim('(A+((B+C)))'), "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/SSgOY
function name:  (null)
number of ops:  54
compiled vars:  !0 = $trim
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   DECLARE_LAMBDA_FUNCTION                              ~1      [0]
          1        ASSIGN                                                       !0, ~1
    7     2        INIT_DYNAMIC_CALL                                            !0
          3        SEND_VAL_EX                                                  '%28%28%28%28A%29%29%29%29'
          4        DO_FCALL                                          0  $3      
          5        ECHO                                                         $3
          6        ECHO                                                         '%0A'
    8     7        INIT_DYNAMIC_CALL                                            !0
          8        SEND_VAL_EX                                                  '%28%28%28%28%28B%2BC%29%2AA%29%2A%28F%29%29%29%29'
          9        DO_FCALL                                          0  $4      
         10        ECHO                                                         $4
         11        ECHO                                                         '%0A'
    9    12        INIT_DYNAMIC_CALL                                            !0
         13        SEND_VAL_EX                                                  '%28A%2BB%29%28B%2BC%29'
         14        DO_FCALL                                          0  $5      
         15        ECHO                                                         $5
         16        ECHO                                                         '%0A'
   10    17        INIT_DYNAMIC_CALL                                            !0
         18        SEND_VAL_EX                                                  '%28%28%28%28%28B%2BC%29%2AA%29%29%29%29'
         19        DO_FCALL                                          0  $6      
         20        ECHO                                                         $6
         21        ECHO                                                         '%0A'
   11    22        INIT_FCALL                                                   'str_repeat'
         23        SEND_VAL                                                     '-'
         24        SEND_VAL                                                     15
         25        DO_ICALL                                             $7      
         26        ECHO                                                         $7
         27        ECHO                                                         '%0A'
   12    28        INIT_DYNAMIC_CALL                                            !0
         29        SEND_VAL_EX                                                  '%28%28A%2BB%29%2BC%29'
         30        DO_FCALL                                          0  $8      
         31        ECHO                                                         $8
         32        ECHO                                                         '%0A'
   13    33        INIT_DYNAMIC_CALL                                            !0
         34        SEND_VAL_EX                                                  '%28%28%28A%2BB%29%29%2BC%29'
         35        DO_FCALL                                          0  $9      
         36        ECHO                                                         $9
         37        ECHO                                                         '%0A'
   14    38        INIT_DYNAMIC_CALL                                            !0
         39        SEND_VAL_EX                                                  '%28%28%28%28A%2BB%29%2BC%29%29'
         40        DO_FCALL                                          0  $10     
         41        ECHO                                                         $10
         42        ECHO                                                         '%0A'
   15    43        INIT_DYNAMIC_CALL                                            !0
         44        SEND_VAL_EX                                                  '%28A%2B%28B%2BC%29%29'
         45        DO_FCALL                                          0  $11     
         46        ECHO                                                         $11
         47        ECHO                                                         '%0A'
   16    48        INIT_DYNAMIC_CALL                                            !0
         49        SEND_VAL_EX                                                  '%28A%2B%28%28B%2BC%29%29%29'
         50        DO_FCALL                                          0  $12     
         51        ECHO                                                         $12
         52        ECHO                                                         '%0A'
         53      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/SSgOY
function name:  {closure:/in/SSgOY:3}
number of ops:  11
compiled vars:  !0 = $str, !1 = $p
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    4     1        ASSIGN                                               ~2      !1, '%28%5C%28%28%28%3F%3A%5B%5E%28%29%5D%2A%7C%28%3F1%29%29%2A%29%5C%29%29'
          2        CONCAT                                               ~3      '%7E%28%3F%7C%5C%28%7B2%2C%7D', ~2
          3        ROPE_INIT                                         3  ~5      '%5C%29%7B2%2C%7D%7C%5E%28%28%28%5C%28%5B%5E%28%29%5D%2B%5C%29%29%2B%29%29%24%7C'
          4        ROPE_ADD                                          1  ~5      ~5, !1
          5        ROPE_END                                          2  ~4      ~5, '%29%7E'
          6        CONCAT                                               ~7      ~3, ~4
          7        FRAMELESS_ICALL_3                preg_replace        ~8      ~7, '%242'
          8        OP_DATA                                                      !0
          9      > RETURN                                                       ~8
    5    10*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
252.81 ms | 2282 KiB | 15 Q