源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php $str = "Who's Peter Griffin?"; echo $str . " This is not safe in a database query. "; echo addslashes($str) . " This is safe in a database query."; ?></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>Who's Peter Griffin? This is not safe in a database query. Who\'s Peter Griffin? This is safe in a database query.</FONT> </body> </html> </HTML>