源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php $str = "Jane & 'Tarzan'"; echo htmlspecialchars($str, ENT_COMPAT); // Will only convert double quotes echo " "; echo htmlspecialchars($str, ENT_QUOTES); // Converts double and single quotes echo " "; echo htmlspecialchars($str, ENT_NOQUOTES); // Does not convert any quotes ?></FONT> </body> </html> </HTML>
运行结果：
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000>Jane & 'Tarzan' Jane & 'Tarzan' Jane & 'Tarzan'</FONT> </body> </html> </HTML>