在php 5.5中删除了JSON_BIGINT_AS_STRING? [英] JSON_BIGINT_AS_STRING removed in php 5.5?

问题描述

在我看来，常量JSON_BIGINT_AS_STRING已从 json_decode() 中删除PHP 5.5.

It seems to me that the constant JSON_BIGINT_AS_STRING is removed from json_decode() in PHP 5.5.

我使用PHP"5.5.3-1ubuntu2"(Ubuntu 13.10)，并从PHP 5.4(Ubuntu 13.04)更新以来收到此错误:

I use PHP "5.5.3-1ubuntu2" (Ubuntu 13.10) and got this error since the update from PHP 5.4 (Ubuntu 13.04):

警告:json_decode():JSON_BIGINT_AS_STRING选项未在...中实现

Warning: json_decode(): option JSON_BIGINT_AS_STRING not implemented in ...

是否有证据表明已将其删除?

Is there any evidence that this is removed?

我不需要该函数，所以我添加了此常量:

I don't need that function so I added this constant:

define('USE_JSON_BIGINT_AS_STRING',(!version_compare(PHP_VERSION,'5.5', '>=') and defined('JSON_BIGINT_AS_STRING')));

在我使用json_decode()的任何地方，我都使用这个:

and wherever I use json_decode(), I use this:

if(USE_JSON_BIGINT_AS_STRING) $j= json_decode($json ,true, 512, JSON_BIGINT_AS_STRING );
else $j=  json_decode($json,true );

推荐答案

正如此处已提到的，此错误似乎来自pecl-json-c的错误版本，由于以下原因，Ubuntu将其打包为php5-json的别名:许可问题.

As mentioned here already, this error seems to come from a buggy version of pecl-json-c, which Ubuntu packages as an alias for php5-json because of licensing issues.

由于 firebase/php-jwt 项目，我发现的解决方法是检查由pecl-json-c设置的JSON_C_VERSION常量，而不是USE_JSON_BIGINT_AS_STRING. (由于定义了USE_JSON_BIGINT_AS_STRING，但未实现).

A work around that I found, thanks to the firebase/php-jwt project, is to check for the JSON_C_VERSION constant that is set by pecl-json-c, instead of USE_JSON_BIGINT_AS_STRING. (Since USE_JSON_BIGINT_AS_STRING is defined, but not implemented).

这是来自 JWT项目的代码:

<?php
if (version_compare(PHP_VERSION, '5.4.0', '>=') && !(defined('JSON_C_VERSION') && PHP_INT_SIZE > 4)) {
    /** In PHP >=5.4.0, json_decode() accepts an options parameter, that allows you
     * to specify that large ints (like Steam Transaction IDs) should be treated as
     * strings, rather than the PHP default behaviour of converting them to floats.
     */
    $obj = json_decode($input, false, 512, JSON_BIGINT_AS_STRING);
} else {
    /** Not all servers will support that, however, so for older versions we must
     * manually detect large ints in the JSON string and quote them (thus converting
     *them to strings) before decoding, hence the preg_replace() call.
     */
    $max_int_length = strlen((string) PHP_INT_MAX) - 1;
    $json_without_bigints = preg_replace('/:\s*(-?\d{'.$max_int_length.',})/', ': "$1"', $input);
    $obj = json_decode($json_without_bigints);
}

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