Shulou(Shulou.com)05/31 Report--

This article introduces the relevant knowledge of "how php converts data into json format". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

In php, you can use the json_encode () function to convert the data to json format, which JSON encodes PHP variables and returns data in JSON format with the syntax "json_encode ($value [, $options])"; if the conversion fails, it returns FALSE.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In php, you can use the json_encode () function to convert the data to json format.

The json_encode () function JSON encodes the PHP variable and returns data in JSON format; if the conversion fails, it returns FALSE.

This function accepts a required parameter and an optional parameter:

Json_encode ($value [, $options = 0])

Parameters.

Value: the value to be encoded. This function is valid only for UTF-8-encoded data.

Options: a binary mask consisting of the following constants: JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK,JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT

Description:

Returns a string type that contains a representation of the value value in JSON form.

The encoding is affected by the passed-in options parameters, and the encoding of floating-point values depends on serialize_precision.

Example 1: convert an array to json format

Example 2: convert PHP objects to JSON format data

Example 3: usage of the options parameter in the json_encode () function

That's all for "how php converts data into json format". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.