json_last_error_msg

Function • Return type changed in PHP 8.0

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

PHP 5.3-5.4

Added

PHP 5.6

PHP 7

Improved

PHP 8.1

PHP 8.2-8.3

PHP 8.4

PHP 8.5

Improved

`json_last_error_msg` Function synopsis

json_last_error_msg(): string

Parameters

json_last_error_msg does not take any parameters.

Return value

Typestring

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

Changes to the `json_last_error_msg` Function

PHP 8.6

JSON: json_decode error/exception message now indicates the location of the error

PHP 8.0

Return type added: string

- json_last_error_msg()
+ json_last_error_msg(): string

PHP 5.5

Function added

`json_last_error_msg` Function Availability

PHP Version	Availability
PHP 8.6Upcoming Release	Yes
PHP 8.5Supported (Latest)	Yes
PHP 8.4Supported	Yes
PHP 8.3Security-Fixes Only	Yes
PHP 8.2Security-Fixes Only	Yes
PHP 8.1Unsupported	Yes
PHP 8.0Unsupported	Yes
PHP 7.4Unsupported	Yes
PHP 7.3Unsupported	Yes
PHP 7.2Unsupported	Yes
PHP 7.1Unsupported	Yes
PHP 7.0Unsupported	Yes
PHP 5.6Unsupported	Yes
PHP 5.5Unsupported	Yes
PHP 5.4Unsupported	No
PHP 5.3Unsupported	No