json_last_error_msg()

json_last_error_msg() — Returns the error string of the last json_validate(), json_encode() or json_decode() call.

Built-in function of PHP 8.5. The manual lists it as available in PHP 5 >= 5.5.0, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.

What it does

Returns the error string of the last json_validate(), json_encode() or json_decode() call, which did not specify JSON_THROW_ON_ERROR.

Signature

json_last_error_msg(): string

Parameters

This function takes no parameters.

Return value

Returns the error message on success, or "No error" if no error has occurred.

Example

The PHP manual ships no example for json_last_error_msg(); the signature and the parameter table above are the contract.

See also

json_last_error()

All PHP 8.5 built-in functions

Reference card built from the PHP manual page json_last_error_msg() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.