• sql_regcase - This function converts each alphabetical character into its equivalent lower and upper case representation surrounded by brackets. For those characters that are not alphabetical, no change is taken place. <?php $text = "MySQL's website is http://www.mysql.com"; print sql_regcase($text); // Outputs [Mm][Yy][Ss][Qq][Ll]'[Ss] [Ww][Ee][Bb][Ss][Ii][Tt] // [Ee] [Ii][Ss] [Hh][Tt][Tt][Pp]://[Ww][Ww][Ww].[Mm][Yy][Ss] // [Qq][Ll].[Cc][Oo][Mm] ?>
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