MB_CASE_FOLD

ConstantAdded in PHP 7.3

MB_CASE_FOLD is one of the accepted parameters for mb_convert_case parameter #2.

MB_CASE_FOLD — Performs a full case fold conversion which removes case distinctions present in the string. This is used for caseless matching. This may change the length of the string. Available since PHP 7.3.

PHP 5
PHP 7.0-7.2
PHP 7.3
Added
PHP 7.4
PHP 8.0-8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6
MB_CASE_FOLD = 3;

Changes to the MB_CASE_FOLD Constant

PHP 7.3

  • Constant added

MB_CASE_FOLD Constant Availability

PHP VersionAvailability
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 No
PHP 7.1Unsupported No
PHP 7.0Unsupported No
PHP 5.6Unsupported No
PHP 5.5Unsupported No
PHP 5.4Unsupported No
PHP 5.3Unsupported No