Name and the value must be enclosed in double quotes, single quotes are not allowed.The strings used are valid JavaScript, but not valid JSON.But this fails in the case when we want to receive JSON string as post data. It is known that all of the post data can be received in a PHP script using the POST global variable. ?> Exit: 7551119 Common mistakes when using the json_decode() function: jsondecode () function: This function takes a JSON string and converts it into a PHP variable that may be an array or an object. PHP 7.3: Added JSONTHROWNONERROR option PHP 7.2: Added JSONINVALIDUTF8IGNORE, and JSONINVALIDUTF8SUBSTITUTE options PHP 7.1: Added JSONUNESCAPEDLINETERMINATORS option PHP 5.6: Added JSONPRESERVEZEROFRACTION option PHP 5.5: Added depth parameter PHP 5.5: Added JSONPARTIALOUTPUTONERROR option PHP 5.5: Changed return value on. Return Values:This function returns an encoded JSON value in the appropriate PHP type. If json cannot be decoded, or if the encoded data is deeper than the recursion limit, it returns NULL.Below are examples to illustrate the use of the json_decode() function in PHP: options: includes a bit mask JSON_OBJECT_AS_ARRAY, JSON_BIGINT_AS_STRING, JSON_THROW_ON_ERROR. jsonencode() & jsondecode() : This function are used for encoding and decoding in JSON format.PHP 7.2: Added JSONINVALIDUTF8IGNORE, and JSONINVALIDUTF8SUBSTITUTE options. PHP Changelog: PHP 7.3: Added JSONTHROWNONERROR option. If the JSON object cannot be decoded it returns NULL. We can use PHP’s jsondecode() function for the same, which takes in a JSON encoded string and returns the corresponding PHP variable. use the data stored in a PHP array and convert that data into JSON string. depth:indicates the recursion depth specified by the user. Return Value: Returns the value encoded in JSON in appropriate PHP type. In the very likely case of your JavaScript front-end sending JSON-based data back to your PHP server, you would need a way to decode the JSON data in a way that can be processed by PHP. Languages such as PHP, Python, C, C++, and Java provide very good support.Assoc:is a boolean variable. If true, the returned objects will be converted to associative arrays.json:contains the JSON string to decode. Works only with UTF-8 encoded strings.This parameter is optional and has false as the default value. Assoarr: this parameter is used to specify the Boolean values that can return an associated array if the value is set to true, else returns an object if it is set to false. Syntax: json_decode ($json, $assoc = FALSE, $depth = 512, $options = 0) Options :This function takes four parameters as above and described below: jsondecode(jsonstring, assoarr, recurdepth, opt) Parameters: Jsonstring: this parameter is compulsory to specify the JSON encoded string for converting it into PHP objects.
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