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<?php $string = 423.13; echo preg_replace_callback("/^(\d)([^\.]+)/", function($m){ return $m[1] . str_repeat(0, strlen($m[2])); }, $string);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aetdk
function name:  (null)
number of ops:  9
compiled vars:  !0 = $string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 423.13
    3     1        INIT_FCALL                                               'preg_replace_callback'
          2        SEND_VAL                                                 '%2F%5E%28%5Cd%29%28%5B%5E%5C.%5D%2B%29%2F'
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2Faetdk%3A3%240'
    5     4        SEND_VAL                                                 ~2
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $3      
          7        ECHO                                                     $3
          8      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2Faetdk%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aetdk
function name:  {closure}
number of ops:  11
compiled vars:  !0 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        FETCH_DIM_R                                      ~1      !0, 1
          2        INIT_FCALL                                               'str_repeat'
          3        SEND_VAL                                                 0
          4        FETCH_DIM_R                                      ~2      !0, 2
          5        STRLEN                                           ~3      ~2
          6        SEND_VAL                                                 ~3
          7        DO_ICALL                                         $4      
          8        CONCAT                                           ~5      ~1, $4
          9      > RETURN                                                   ~5
    5    10*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2Faetdk%3A3%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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