In this article, you will learn how to encode a value to JSON format. The PHP method JSON_ENCODE() convert the given value to JSON format. The given value turns into a JSON object. JSON_ENCODE() function can encode both indexed as well as associative arrays.
What is the syntax of the JSON_ENCODE() function in php?
json_encode(value, options, depth)| Parameter | Description |
|---|---|
| value | Required. Specifies the value to be encoded |
| options | Optional. Specifies a bitmask (JSON_FORCE_OBJECT, JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_INVALID_UTF8_IGNORE, JSON_INVALID_UTF8_SUBSTITUTE, JSON_NUMERIC_CHECK, JSON_PARTIAL_OUTPUT_ON_ERROR, JSON_PRESERVE_ZERO_FRACTION, JSON_PRETTY_PRINT, JSON_UNESCAPED_LINE_TERMINATORS, JSON_UNESCAPED_SLASHES, JSON_UNESCAPED_UNICODE, JSON_THROW_ON_ERROR) |
| depth | Optional. Specifies the maximum depth |
examples of the JSON_ENCODE() function
Example 1. In this example, we encode an associative array into a JSON object.
<?php
$age = array("Peter"=>35, "Ben"=>37, "Joe"=>43);
echo json_encode($age);
?>Example 2. In this example, we encode an indexed array into a JSON object.
<?php
$cars = array("Volvo", "BMW", "Toyota");
echo json_encode($cars);
?>
