3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test=array("abcd/abcd_.mp3", "abcd", "asdasd/abcd.mp3", "abcd.", "blahahbasdabcd"); foreach ($test as $t) echo "$t => " . preg_replace("/abcd([^_.])/m", "XXXXX" . "\${1}", $t) . "\n";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 14
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 14
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
filename:       /in/5qJqN
function name:  (null)
number of ops:  16
compiled vars:  !0 = $test, !1 = $t
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1      > FE_RESET_R                                       $3      !0, ->14
          2    > > FE_FETCH_R                                               $3, !1, ->14
    4     3    >   NOP                                                      
          4        FAST_CONCAT                                      ~4      !1, '+%3D%3E+'
          5        INIT_FCALL                                               'preg_replace'
          6        SEND_VAL                                                 '%2Fabcd%28%5B%5E_.%5D%29%2Fm'
          7        SEND_VAL                                                 'XXXXX%24%7B1%7D'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                         $5      
         10        CONCAT                                           ~6      ~4, $5
         11        CONCAT                                           ~7      ~6, '%0A'
         12        ECHO                                                     ~7
    3    13      > JMP                                                      ->2
         14    >   FE_FREE                                                  $3
    4    15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
166.95 ms | 1386 KiB | 15 Q