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<?php echo preg_replace('@(?=\pL)@u', '*', 'م'); // prints: '*م' ✓ echo preg_replace('@(?=\pL)@u', '*', 'ض'); // prints: '*ض' ✓ echo preg_replace('@(?=\pL)@u', '*', 'غ'); // prints: '*�*�' ✗ echo preg_replace('@(?=\pL)@u', '*', 'ص'); // prints: '*�*�' ✗
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P4G9f
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   FRAMELESS_ICALL_3                preg_replace        ~0      '%40%28%3F%3D%5CpL%29%40u', '%2A'
          1        OP_DATA                                                      '%D9%85'
          2        ECHO                                                         ~0
    3     3        FRAMELESS_ICALL_3                preg_replace        ~1      '%40%28%3F%3D%5CpL%29%40u', '%2A'
          4        OP_DATA                                                      '%D8%B6'
          5        ECHO                                                         ~1
    4     6        FRAMELESS_ICALL_3                preg_replace        ~2      '%40%28%3F%3D%5CpL%29%40u', '%2A'
          7        OP_DATA                                                      '%D8%BA'
          8        ECHO                                                         ~2
    5     9        FRAMELESS_ICALL_3                preg_replace        ~3      '%40%28%3F%3D%5CpL%29%40u', '%2A'
         10        OP_DATA                                                      '%D8%B5'
         11        ECHO                                                         ~3
         12      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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