Question

I have json_encoded array that i would like to add to using php

[{"id":"a","value":"2"},{"id":"b","value":"2"}]

I want to add the following to the array above:

array("id" => c, "value" => "3") 

I tried json_decode then trying to push the array into that but im confused on how to do that

Answer 1

Make sure you use json_decode in array mode rather than object mode:

// Default: JSON is decoded as object
$json_object = json_decode($json_string);

// Pass true in the second argument to get an array instead
$json_array = json_decode($json_string, true);

// Push a new entry onto the end
$json_array[] = array("id" => c, "value" => "3");

// Re-encode JSON string, if needed
$json_final_string = json_encode($json_array);