htmlentities Convert all applicable characters to HTML entities &reftitle.description; stringhtmlentities stringstring intquote_style stringcharset booldouble_encode This function is identical to htmlspecialchars in all ways, except with htmlentities, all characters which have HTML character entity equivalents are translated into these entities. If you're wanting to decode instead (the reverse) you can use html_entity_decode. &reftitle.parameters; string The input string. quote_style Like htmlspecialchars, the optional second quote_style parameter lets you define what will be done with 'single' and "double" quotes. It takes on one of three constants with the default being ENT_COMPAT: Constant Name Description ENT_COMPAT Will convert double-quotes and leave single-quotes alone. ENT_QUOTES Will convert both double and single quotes. ENT_NOQUOTES Will leave both double and single quotes unconverted. charset Like htmlspecialchars, it takes an optional third argument charset which defines character set used in conversion. Presently, the ISO-8859-1 character set is used as the default. &reference.strings.charsets; double_encode When double_encode is turned off PHP will not encode existing html entities. The default is to convert everything. &reftitle.returnvalues; Returns the encoded string. &reftitle.changelog; &Version; &Description; 5.2.3 The double_encode parameter was added. 4.1.0 The charset parameter was added. 4.0.3 The quote_style parameter was added. &reftitle.examples; bold"; // Outputs: A 'quote' is <b>bold</b> echo htmlentities($str); // Outputs: A 'quote' is <b>bold</b> echo htmlentities($str, ENT_QUOTES); ?> ]]> &reftitle.seealso; html_entity_decode get_html_translation_table htmlspecialchars nl2br urlencode