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<?php $value = 'a, modern php framework.= is a must 1234'; $output = preg_replace('/[^a-zA-z\d]/', '_', $value); $put = preg_replace('/_?/', '_', $output); echo $put;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KrZqv
function name:  (null)
number of ops:  15
compiled vars:  !0 = $value, !1 = $output, !2 = $put
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, 'a%2C+modern+php+framework.%3D+is+a+must+1234'
    5     1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%2F%5B%5Ea-zA-z%5Cd%5D%2F'
          3        SEND_VAL                                                 '_'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $4      
          6        ASSIGN                                                   !1, $4
    6     7        INIT_FCALL                                               'preg_replace'
          8        SEND_VAL                                                 '%2F_%3F%2F'
          9        SEND_VAL                                                 '_'
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                         $6      
         12        ASSIGN                                                   !2, $6
    8    13        ECHO                                                     !2
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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