[SOLVED] Convert JSON integers and floats to strings

Convert JSON integers and floats to strings

I want to pre-parse a JSON and convert integer and float value to string in the JSON. Also there are some string values in JSON.

For example:

{
    "first_name": "sample",
    "last_name": "lastname",
    "integer" : 100,
    "float" : 1555.20
}

I just use preg_replace() like this from here:

echo preg_replace('/\: *([0-9]+\.?[0-9e+\-]*)/', '"\\1"', $jsonString);

But its not working if I have a string value in my array, it only works if there are only integer and float values in array.

Can anyone help explain why this happens?

Solution

Here is solution:

$str = '{"first_name":"sample",
          "last_name": "lastname",
          "integer" : 100,
          "float" : 1555.20,
          "createddate":"2015-06-25 09:57:28"}';

$result = preg_replace("/(\"\w+\":\s*?)(\d+\.?[^,\}]*\b)/imu",'$1"$2"',$str);

var_dump($result);

// output:
string(121) "{"first_name":"sample",
"last_name": "lastname",
"integer" : 100,
"float" : 1555.20,
"createddate":"2015-06-25 09:57:28"}"