php-json 1.2.1

php-json is an extremely fast PHP C extension for JSON (JavaScript Object Notation) serialisation. php-json project library uses a forked version of json-c.
It can be used in conjunction with XMLHTTPRequest to exchange JavaScript-encoded data with a browser.
Usage:
A simple ./configure; make; make install should do the trick. Make sure to add an extension=json.so line to your php.ini/php.d. Note: you need to compile php-json with gcc 3.x and up.
Then, just use json_encode to encode your PHP values into JSON, and json_decode to decode JSON into a PHP value.
For example:
$output = json_encode($val);
echo $output."n";
Would produce:
{ "abc": 12, "foo": "bar", "bool0": false, "bool1": true, "arr": [ 1, 2, 3, null, 5 ], "float": 1.2345 }
While:
$input = { "abc": 12, "foo": "bar", "bool0": false, "bool1": true, "arr": [ 1, 2, 3, null, 5 ], "float": 1.2345 };
$val = json_decode($input);
echo $val->abc."n";
Would produce:
12
As of version 1.0.5, json_decode takes an optional parameter, assoc (boolean), that returns an associative array instead of an object.
A PHP object correlates to a JavaScript object (associative array, i.e., key => value pairs), so the above would be referenced in JavaScript like so:
var obj = ...; /* retrieve JSON and eval() it, returning an object */
var result = obj["abc"] * obj["float"];
alert("result is " + result);
This should display an alert box with the value of result, i.e., 14.814.
Enhancements:
- A complete rewrite using JSON_checker as the base for the parser.
- Implements the JSON specification.
- Significant performance improvements on encoding.
- Re-licensed under the PHP license.