源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php echo(cosh(3) . " "); echo(cosh(-3) . " "); echo(cosh(0) . " "); echo(cosh(M_PI) . " "); echo(cosh(2*M_PI)); ?></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>10.067661995778 10.067661995778 1 11.591953275522 267.74676148375</FONT> </body> </html> </HTML>