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<?php echo preg_replace('/[^0-9]/', '', '123abc45', -1 );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hU1Gu
function name:  (null)
number of ops:  8
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'preg_replace'
          1        SEND_VAL                                                     '%2F%5B%5E0-9%5D%2F'
          2        SEND_VAL                                                     ''
          3        SEND_VAL                                                     '123abc45'
          4        SEND_VAL                                                     -1
          5        DO_ICALL                                             $0      
          6        ECHO                                                         $0
          7      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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