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<?php var_dump(mb_ereg_replace('(%)', '\\\1', 'a%c'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OjhAe
function name:  (null)
number of ops:  9
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   INIT_FCALL                                               'var_dump'
         1        INIT_FCALL                                               'mb_ereg_replace'
         2        SEND_VAL                                                 '%28%25%29'
         3        SEND_VAL                                                 '%5C%5C1'
         4        SEND_VAL                                                 'a%25c'
         5        DO_ICALL                                         $0      
         6        SEND_VAR                                                 $0
         7        DO_ICALL                                                 
         8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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