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<?php var_dump(preg_match('/\b' . preg_quote('ki') . '\b/i', 'ki'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YL8E2
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'preg_match'
          2        INIT_FCALL                                               'preg_quote'
          3        SEND_VAL                                                 'ki'
          4        DO_ICALL                                         $0      
          5        CONCAT                                           ~1      '%2F%5Cb', $0
          6        CONCAT                                           ~2      ~1, '%5Cb%2Fi'
          7        SEND_VAL                                                 ~2
          8        SEND_VAL                                                 'ki'
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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