In earlier versions of PHP, escape special characters in Json and escape json_PHP

In earlier versions, PHP escapes special characters in Json and escapes json. In the old version of PHP, special characters in Json are escaped, json is used as an API for an App, data is retrieved from MySQL on the server side, and JSON is generated. There is a field in the data called the function of escaping special characters in Json in PHP of the old conte version, and escaping json

Create an API for an App, extract data from MySQL on the server, and generate JSON. There is a field in the data called content, which stores the content of the article and contains a large number of HTML tags. This field needs to be escaped when converted to json, because a large number of special characters will damage the json structure.

For example, the following content:

The code is as follows:
'Lorem ipsum "dolor" sit amet, consectetur \ adipiscing elit .'

It must be converted:

The code is as follows:
Lorem ipsum \ "dolor \" sit amet, \ nconsectetur \ adipiscing elit.

If the PHP version is later than 5.2, json_encode comes with an escape character. If it is an old version of PHP, you can use the following function.

# list from www.json.org: (\b backspace, \f formfeed)public function escapeJsonString($value) {  $escapers = array("\\", "/", "\"", "\n", "\r", "\t", "\x08", "\x0c");  $replacements = array("\\\\", "\\/", "\\\"", "\\n", "\\r", "\\t", "\\f", "\\b");  $result = str_replace($escapers, $replacements, $value);  return $result;}

It is often used. record it and hope to help you.

The producer performs an API for an App, extracts data from MySQL on the server, and generates JSON. There is a field in the data called conte...