[Solved] How can I replace dot with comma but only for numbers in a string ? (PHP) [duplicate]

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Try this one

  $str = "this is. an example. 15.68€";
  function cleaner($matches)
   {
     return str_replace("." , "," , $matches["nrs"]);
   }

 $str = preg_replace_callback ("/(?P<nrs>[0-9]+.[0-9]+)/" , "cleaner" , $str);
 echo $str;

I have used preg_replace_callback. The behavior of this function is almost identical to preg_replace(), except for the fact that instead of replacement parameter, one should specify a callback. Check for more about it here. You can also test the live preview of my solution.

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solved How can I replace dot with comma but only for numbers in a string ? (PHP) [duplicate]