PHP mb_convert_case mbstring function

Definition and Usage

mb_convert_case  - the string case conversion

grammar

mb_convert_case( string $str , int $mode [, string $encoding = mb_internal_encoding() ] )

mb_convert_case ()  to a string case conversion, conversion mode specified by the mode.

parameter

parameter Necessary description
str Yes String is converted to
mode Yes Conversion mode. It can be MB_CASE_UPPER, one of MB_CASE_LOWER and MB_CASE_TITLE.
encoding no encoding parameter is the character code. If omitted, the internal character encoding.

return value

Mode specified by mode conversion string version of the case.

And the like  strtolower () , the strtoupper ()  is compared to the standard case conversion function, performed according to the underlying case conversion of Unicode character attributes. Thus the behavior of this function is not affected by the locale (the locale) provided, capable of converting an arbitrary character having a "letter" attribute, such as an umlaut A (Ä).

Examples

$str = "mary had a Little lamb and she loved it so";
$str = mb_convert_case($str, MB_CASE_UPPER, "UTF-8");
echo $str; // 输出 MARY HAD A LITTLE LAMB AND SHE LOVED IT SO
$str = mb_convert_case($str, MB_CASE_TITLE, "UTF-8");
echo $str; // 输出 Mary Had A Little Lamb And She Loved It So

Related Pages

mb_strtolower ()  - lowercase character string

mb_strtoupper ()  - uppercase character string

strtolower ()  - convert string lowercase

the strtoupper ()  - convert a string to upper case

ucfirst ()  - converts the first letter of a string to uppercase

ucwords ()  - converts the first letter of each word in a string to uppercase


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Origin blog.51cto.com/13578973/2458219