プロの翻訳者、企業、ウェブページから自由に利用できる翻訳レポジトリまで。
the third argument defines character set used in conversion.
note that this function does not translate anything beyond what is listed above. for full entity translation, see htmlentities(). support for the optional second argument was added in php 3.0.17 and php 4.0.3.