源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php $str = "Hello World!u00a0u00a0u00a0u00a0"; echo "Without rtrim: " . $str; echo " "; echo "With rtrim: " . rtrim($str); ?></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>Without rtrim: Hello World!u00a0u00a0u00a0u00a0 With rtrim: Hello World!u00a0u00a0u00a0u00a0</FONT> </body> </html> </HTML>