3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'wow ABC (R+R) : Weldone boy (My Love)'; //$variable = "ABC (R+R)"; $variable = "ABC \(R\+R\)"; echo $pattern = "/\b$variable(?!\S)/"; echo "\n"; echo preg_match($pattern, $string)? 'matched' : 'not matched'; echo "\n\n"; /* DIRECT FUNCTION */ echo preg_match("/\bABC \(R\+R\)(?!\S)/", 'wow ABC (R+R) : Weldone boy (My Love)')? 'matched' : 'not matched';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 15
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 25
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
Branch analysis from position: 25
filename:       /in/meT5A
function name:  (null)
number of ops:  28
compiled vars:  !0 = $string, !1 = $variable, !2 = $pattern
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'wow+ABC+%28R%2BR%29+%3A+Weldone+boy+%28My+Love%29'
    5     1        ASSIGN                                                   !1, 'ABC+%5C%28R%5C%2BR%5C%29'
    6     2        ROPE_INIT                                     3  ~6      '%2F%5Cb'
          3        ROPE_ADD                                      1  ~6      ~6, !1
          4        ROPE_END                                      2  ~5      ~6, '%28%3F%21%5CS%29%2F'
          5        ASSIGN                                           ~8      !2, ~5
          6        ECHO                                                     ~8
    7     7        ECHO                                                     '%0A'
    8     8        INIT_FCALL                                               'preg_match'
          9        SEND_VAR                                                 !2
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $9      
         12      > JMPZ                                                     $9, ->15
         13    >   QM_ASSIGN                                        ~10     'matched'
         14      > JMP                                                      ->16
         15    >   QM_ASSIGN                                        ~10     'not+matched'
         16    >   ECHO                                                     ~10
   10    17        ECHO                                                     '%0A%0A'
   14    18        INIT_FCALL                                               'preg_match'
         19        SEND_VAL                                                 '%2F%5CbABC+%5C%28R%5C%2BR%5C%29%28%3F%21%5CS%29%2F'
         20        SEND_VAL                                                 'wow+ABC+%28R%2BR%29+%3A+Weldone+boy+%28My+Love%29'
         21        DO_ICALL                                         $11     
         22      > JMPZ                                                     $11, ->25
   15    23    >   QM_ASSIGN                                        ~12     'matched'
         24      > JMP                                                      ->26
         25    >   QM_ASSIGN                                        ~12     'not+matched'
         26    >   ECHO                                                     ~12
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
137.08 ms | 998 KiB | 14 Q