* @return string
*/
function ucfirst ( $string ) {
- if ( !empty( $string ) && $string[0] == 'i' ) {
+ if ( strlen( $string ) && $string[0] == 'i' ) {
return 'İ' . substr( $string, 1 );
} else {
return parent::ucfirst( $string );
* @return mixed|string
*/
function lcfirst ( $string ) {
- if ( !empty( $string ) && $string[0] == 'I' ) {
+ if ( strlen( $string ) && $string[0] == 'I' ) {
return 'ı' . substr( $string, 1 );
} else {
return parent::lcfirst( $string );
* @return string
*/
function uc( $string, $first = false ) {
- $string = preg_replace( '/i/', 'İ', $string );
+ if ( strlen( $string ) ) {
+ if ( $first ) {
+ if ( $string[0] === 'i' ) {
+ $string = 'İ' . substr( $string, 1 );
+ }
+ } else {
+ $string = str_replace( 'i', 'İ', $string );
+ }
+ }
return parent::uc( $string, $first );
}
* @return string
*/
function lc( $string, $first = false ) {
- $string = preg_replace( '/I/', 'ı', $string );
+ if ( strlen( $string ) ) {
+ if ( $first ) {
+ if ( $string[0] == 'I' ) {
+ $string = 'ı' . substr( $string, 1 );
+ }
+ } else {
+ $string = str_replace( 'I', 'ı', $string );
+ }
+ }
return parent::lc( $string, $first );
}