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php case change

This is available for PHP 3, PHP 4, & PHP 5.

strtoupper — Make a string uppercase

string strtoupper ( string )

Returns string with all alphabetic characters converted to uppercase.

Note that ‘alphabetic’ is determined by the current locale. For instance, in the default “C” locale characters such as umlaut-a (รค) will not be converted.

Example 1. strtoupper() example