用php清理JSON [英] Sanitize JSON with php
问题描述
我总是使用filter_var($ var,FILTER,FLAG);当我从$ _GET,$ _ POST等获取数据时,但是现在此数据是JSON字符串,但是我没有找到任何过滤器来净化JSON.有人知道如何实现此过滤器吗?
I always use filter_var($var, FILTER, FLAG); when I get data from $_GET, $_POST and so on, but now this data is a JSON string but I didn't find any filter to sanitize JSON. Anyone know how to implement this filter?
PHP filter_var(): http://php.net/manual/zh-CN /function.filter-var.php
PHP filter_var(): http://php.net/manual/en/function.filter-var.php
PHP FILTER CONST: http://php.net/manual/zh/filter.filters.sanitize.php
PHP FILTER CONST: http://php.net/manual/en/filter.filters.sanitize.php
推荐答案
首先将JSON解析为PHP数组,然后像处理常规请求内容一样对数组中的每个值进行过滤,您可以将JSON键映射到逻辑示意图过滤器和标志/选项,例如
Parse the JSON first into a PHP array and then filter each value in the array as you do with regular request content, you could map the JSON keys to schematic filters and flags/options e.g.
$filters = array(
'email'=>FILTER_VALIDATE_EMAIL,
'url'=>FILTER_VALIDATE_URL,
'name'=>FILTER_SANITIZE_STRING,
'address'=>FILTER_SANITIZE_STRING
);
$options = array(
'email'=>array(
'flags'=>FILTER_NULL_ON_FAILURE
),
'url'=>array(
'flags'=>FILTER_NULL_ON_FAILURE
),
//... and so on
);
$inputs = json_decode($your_json_data);
$filtered = array();
foreach($inputs as $key=>$value) {
$filtered[$key] = filter_var($value, $filters[$key], $options[$key]);
}
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