Which function is used for encoding json in php?
View Discussion Show Improve Article Save Article View Discussion Improve Article Save Article JSON stands for JavaScript Object Notation. Like XML, it is a text-based format for the exchange of data which is easier to read and write and it is lighter than other formats. JSON is based on two basic structures namely Objects and Arrays. Parsing JSON data in PHP: There are built-in functions in PHP for both encoding and decoding JSON data. These functions are json_encode() and json_decode(). These functions works only with UTF-8 encoded string. Decoding JSON data in PHP: It is very easy to decode JSON data in PHP. You just have to use json_decode() function to convert JSON objects to the appropriate PHP data type. Example: By default the json_decode() function returns an object. You can optionally specify a second parameter that accepts a boolean value. When it is set as “true”, JSON objects are decoded into associative arrays. PHP
Output: Encoding JSON data in PHP: Encoding JSON data is as easy as encoding JSON data in PHP. We use the json_encode()function, the data being encoded can be any PHP data type except a resource like a filehandle. Example 1: The following code demonstrates encoding PHP associative array. PHP
Output: {"Ram":96,"Prashant":76,"Varun":65,"Mark":34} Example 2: The following code demonstrates encoding PHP indexed array. PHP
Output: ["Ram","Prashant","Varun","Mark"] (PHP 5 >= 5.2.0, PHP 7, PHP 8, PECL json >= 1.2.0) json_encode — Returns the JSON representation of a value Descriptionjson_encode(mixed If a value to be serialized is an object, then by default only publicly visible properties will be included. Alternatively, a class may implement JsonSerializable to control how its values are serialized to JSON. The encoding is affected by the supplied Parametersvalue The All string data must be UTF-8 encoded.
flags Bitmask consisting of depth Set the maximum depth. Must be greater than zero. Return Values Returns a JSON encoded string on success or Changelog
ExamplesExample #1 A json_encode() example
json_encode($arr); The above example will output: {"a":1,"b":2,"c":3,"d":4,"e":5} Example #2 A json_encode() example showing some flags in use
"Normal: ", json_encode($a), "\n"; The above example will output: Normal: [" Example #3 JSON_NUMERIC_CHECK option example
The above example will output something similar to: Strings representing numbers automatically turned into numbers array(4) { [0]=> string(7) "+123123" [1]=> string(7) "-123123" [2]=> string(5) "1.2e3" [3]=> string(7) "0.00001" } string(28) "[123123,-123123,1200,1.0e-5]" Strings containing improperly formatted numbers array(2) { [0]=> string(13) "+a33123456789" [1]=> string(4) "a123" } string(24) "["+a33123456789","a123"]" Example #4 Sequential versus non-sequential array example
PHP_EOL."Non-sequential array".PHP_EOL; The above example will output: Sequential array array(4) { [0]=> string(3) "foo" [1]=> string(3) "bar" [2]=> string(3) "baz" [3]=> string(5) "blong" } string(27) "["foo","bar","baz","blong"]" Non-sequential array array(4) { [1]=> string(3) "foo" [2]=> string(3) "bar" [3]=> string(3) "baz" [4]=> string(5) "blong" } string(43) "{"1":"foo","2":"bar","3":"baz","4":"blong"}" Sequential array with one key unset array(3) { [0]=> string(3) "foo" [2]=> string(3) "baz" [3]=> string(5) "blong" } string(33) "{"0":"foo","2":"baz","3":"blong"}" Example #5
The above example will output: string(4) "12.0" string(2) "12" Notes
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How encode JSON in PHP?To convert an array to json in PHP, use the json_encode() function. The json_encode() function is used to encode a value to JSON format. The json_encode() function converts PHP-supported data type into JSON formatted string to be returned due to JSON encode operation.
Which functions are used to encode and decode JSON in PHP?Parsing JSON data in PHP: There are built-in functions in PHP for both encoding and decoding JSON data. These functions are json_encode() and json_decode(). These functions works only with UTF-8 encoded string.
How do you encode a data in JSON?JSON data structures are very similar to PHP arrays. PHP has built-in functions to encode and decode JSON data. These functions are json_encode() and json_decode() , respectively. Both functions only works with UTF-8 encoded string data.
Can you JSON encode an object in PHP?json_encode() is a native PHP function that allows you to convert PHP data into the JSON format. The function takes in a PHP object ($value) and returns a JSON string (or False if the operation fails).
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