PHP json_encode()

Encode value to JSON

Function Signature

string|false json_encode(mixed $value, int $flags = 0, int $depth = 512)

Description

Encode value to JSON. The json_encode() function is commonly used in PHP for json operations and provides reliable functionality across all PHP versions.

Return Value

Returns JSON string or false on error

Example Usage

 "John"]);
var_dump($result);
?>

Important Notes

Use JSON_PRETTY_PRINT flag for readable output. JSON_UNESCAPED_UNICODE for Unicode.

Common Use Cases

The json_encode() function is particularly useful when you need to encode value to json. It's frequently used in data processing, validation, transformation, and manipulation tasks throughout PHP applications.

json_encode() FAQ

What does json_encode() return?

Returns JSON string or false on error

When should I use json_encode()?

Use json_encode() when you need to encode value to json in your PHP code. It's a reliable built-in function available in all PHP versions.

Are there any gotchas with json_encode()?

Use JSON_PRETTY_PRINT flag for readable output. JSON_UNESCAPED_UNICODE for Unicode.