What is the method to convert json to array in php

The method for php to convert json to array is to use the json_decode function, such as [json_decode($json, true)]. This function can convert a JSON encoded string to the appropriate PHP data type.

#In PHP, you can use the json_decode() function to convert a JSON-encoded string into the appropriate PHP data type. By default, the json_decode() function will return an object; however, you can specify the second parameter to be a Boolean value true, so that the JSON value will be decoded into an associative array.

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Grammar format:

json_decode( $json, $assoc = FALSE, $depth = 512, $options = 0 )

Parameter introduction:

● json: it Contains the JSON string that needs to be decoded. It only works with UTF-8 encoded strings.

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

●depth: It represents the user-specified recursion depth.

● Options: It includes the bit mask 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.

For example:

<?php

// 在PHP变量中存储JSON数据

$json = &#39;{"Peter":65,"Harry":80,"John":78,"Clark":90}&#39;;

var_dump(json_decode($json, true));

?>

The result is as shown:

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