Question

I have a JSON string I want to change it.

The JSON string looks like

string '[{"id":"AT.02708872.T"},{"id":"DE.60232348.A"}]' (length=114)

I want to convert this JSON to

string '[{"id":"AT02708872"},{"id":"DE60232348"}]' (length=114)

So I want to remove the dots and the last letter. I am using Symfony2 (PHP)

Anyone has any idea how can I do it.

Thanks

Answer 1

Decode, modify, re-encode.

<?php

$json = '[{"id":"AT.02708872.T"},{"id":"DE.60232348.A"}]';

// Decode the JSON data into an array of objects. 
// Symfony probably will have some JSON handling methods so you could look at
// those to keep the code more Symfony friendly.
$array = json_decode($json);


// Loop through the array of objects so you can modify the ID of 
// each object. Note the '&'. This is calling $object by reference so
// any changes within the loop will persist in the original array $array
foreach ($array as &$object)
{
    // Here we are stripping the periods (.) from the ID and then removing the last
    // character with substr()
    $object->id = substr(str_replace('.', '', $object->id), 0, -1);
}

// We can now encode $array back into JSON format
$json = json_encode($array);

var_dump($json);

There is probably native JSON handling within Symfony2 so you may want to check that out.