json_decode无法正常工作，也没有回音

I am having a lot of issues getting a response from json using php. The code below echos nothing and I have no idea why. I need to be able to access all points of that json file individually through functions.

file.json

{
    "file":{
        "name": "File Name",
        "description": "This is a file!",
        "license": "glp-2.0",
        "version": "1.1.1",
        "author": [{
            "name": "Author Name",
            "email": "name@domain.com"
        }],
        "require": [{
            "php": ">= 5.2.4",
            "myslq": ">= 5.0",
        }]
    }
}

localhost/data.php

define('PATH', 'http://domain.com/json/');

function test(){
    $json = file_get_contents( PATH."file.json" );
    $data = json_decode($json,true);
    echo $data['file']['name'];
}

test();

define('PATH', 'http://domain.com/json/');

function test(){
    $json = file_get_contents( PATH."file.json" );
    $data = json_decode(preg_replace('/,\s*([\]}])/m', '$1', utf8_encode($json)),true);
    echo $data['file']['name'];
}

test();

preg_replace('/,\s*([]}])/m', '$1', utf8_encode($json)) In bold above fixed my issue.

It's a good idea to use a debugger or to do some debug print outs. Try:

$json = file_get_contents( PATH."file.json" );
var_dump($json);
$data = json_decode($json,true);
var_dump($data)

Now you can see if file_get_contents or json_decode doesn't work.

A much better option is to use a debugger while developing software in order to find failures easily. Get more information on: http://xdebug.org/.