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@ 2015-11-19T09:26:23Z

<?php

$json = array(
                    "sn" => CAS0510000072,
                    "name" => 内网测试环境,
                    "engine" => array(
                        "pkt_uri" => "https://192.168.1.224:7088/engine/fred.tar.gz",
                        "md5" => "e6e21fc448db4a5a57087df0060b8292",
                        "title" => "fred"
                     ),
                    "area" => array(
                        "pkt_uri" => "https://192.168.1.224:7088/area/东南地区_beta.tar.gz",
                        "md5" => "4b6570bdae1fee83ef5ff2ab725eed4e",
                        "title" => "东南地区_beta"
                    ),
                    "account" => array(
                        "pkt_uri" => "https://192.168.1.224:7088/account.conf",
                        "md5" => "481284bd6c5a0481c1f1b32afd7c8aae",
                        "title" => "account"
                    ),
                    "work" => "start"
                );

$encoded = json_encode($json);
var_dump($encoded);

$unescaped = preg_replace_callback('/\\\u(\w{4})/', function ($matches) {
    return html_entity_decode('&#x' . $matches[1] . ';', ENT_COMPAT, 'UTF-8');
}, $encoded);
echo $unescaped;

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Undefined constant "CAS0510000072" in /in/hKiNg:4 Stack trace: #0 {main} thrown in /in/hKiNg on line 4
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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