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Showing posts with the label strtolower

Manipulating String Cases

Case sensitivity is an issue that the programmer (and the end user) must deal with. Everything from commands to passwords are affected by case sensitivity. In PHP there are four functions that provide the tools to deal with the case sensitivity issue by allowing the string case to be manipulated. • strtolower -                  This string case manipulation function converts all characters that are uppercase characters to lowercase characters. <?php $text = "MySQL http://WWW.MYSQL.COM"; print strtolower($text); // Returns "mysql http://www.mysql.com"; ?> • strtoupper -  This string case manipulation function converts all characters that are lowercase characters to uppercase characters. <?php $text = "MySQL http://WWW.MYSQL.COM"; print strtoupper($text); // Returns "MYSQL HTTP://WWW.MYSQL.COM"; ?> • ucfirst -                   This string case manipulation function converts only the first character of the