How to convert json data into array type in php

In PHP, you can use the json_decode() function to convert json data into an array type. You only need to set the second parameter of the function to "true". The syntax is "json_decode($json, true)".

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

In php, You can use the json_decode() function to convert json data into an array type.

The json_decode() function can convert a JSON-encoded string into the appropriate PHP data type.

By default, the json_decode() function will return an object;

<?php
$json = &#39;{"Peter":65,"Harry":80,"John":78,"Clark":90}&#39;;
var_dump(json_decode($json));
?>

However, when the second parameter is specified as a Boolean value true, this way The JSON value will be decoded into an associative array.

<?php
$json = &#39;{"Peter":65,"Harry":80,"John":78,"Clark":90}&#39;;
var_dump(json_decode($json, true));
?>

Description:

json_decode — Decode the string in JSON format

Syntax:

json_decode(
    string $json,
    bool $assoc = false,
    int $depth = 512,
    int $options = 0
): mixed

Accepts a JSON encoded string and converts it into a PHP variable

Parameters: The json_decode() function accepts the four parameters mentioned above, as follows Said:

• $json: It contains the JSON string that needs to be decoded. It only works with UTF-8 encoded strings.

• $jassoc: It is a Boolean variable. If true, the returned object will be converted to an associative array.

• $jdepth: It represents the user-specified recursion depth.

• $joptions: It includes bit masks of JSON_OBJECT_AS_ARRAY, JSON_BIGINT_AS_STRING, JSON_THROW_ON_ERROR.

Return value: This function returns the encoded JSON value in the appropriate PHP type. If the json cannot be decoded or the encoded data is deeper than the recursion limit, NULL is returned.

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