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<?php var_dump(str_replace( [ ',', '.', ],[ '.', ',', ], '1.2,3' )); var_dump(strtr('1.2,3', [ ',' => '.', '.' => ',', ]));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tk6FO
function name:  (null)
number of ops:  16
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'str_replace'
    5     2        SEND_VAL                                                 <array>
    8     3        SEND_VAL                                                 <array>
   11     4        SEND_VAL                                                 '1.2%2C3'
          5        DO_ICALL                                         $0      
          6        SEND_VAR                                                 $0
          7        DO_ICALL                                                 
   13     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'strtr'
         10        SEND_VAL                                                 '1.2%2C3'
   15    11        SEND_VAL                                                 <array>
         12        DO_ICALL                                         $2      
         13        SEND_VAR                                                 $2
         14        DO_ICALL                                                 
   17    15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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