![]() ![]() return value is null when invalid encoding detected. In the above function, you will get true in return if it is a valid JSON. If it is true then objects returned will be converted into associative arrays. ![]() It converts a JSON encoded string into a PHP variable. PHP | json_decode() Function The json_decode() function is an inbuilt function in PHP which is used to decode a JSON string. PHP frameworks such as Symfony and Laravel have built-in methods that work with JSON. The json_decode takes a JSON encoded string and converts it into a PHP variable. JSON (JavaScript Object Notation) is a lightweight data-interchange format. #PHP JSON DECODE ERROR SERIES#Which means 20 characters of padding needs to be removed (a series of “\\0” bytes at the end of your string). There are 124 visible characters in your string but var_dump reports 144. Most likely you need to strip off the padding from your decrypted data. How many characters are in a JSON string? Here is the string I’m sending: It is sent via post. I am using ajax to send data with JSON and it keeps returning null. Why does JSON keep returning null in Ajax? There must be an error in the JSON when you try to decode it. Functions like json_decode() and json_encode() do not display errors, you must use json_last_error and since PHP 5.5 there is also json_last_error_msg(). Json_decode() must be emitting an error which you are not checking.
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