PHP数据流应用的一个简单实例

代码如下:

<br><?php <br>$count = 5; <br>start: <br>if($count < 5) echo "You can try {$count} time, "; <br>echo "Put Password: "; <br>$handle = fopen ("php://stdin","r"); <br>$line = fgets($handle); <br>if(trim($line) != '123456'){ <br>$count--; <br>if(!$count) goto error; <br>goto start; <br>} <br>goto success; <br>error: <br>echo "Please try after 1 hour!"; <br>goto out; <br>success: <br>echo "Logined!"; <br>out: <br>?> <br><br><strong>执行结果：</strong> <br><img src="https://img.gxlcms.com//Uploads-s/new/2019-09-10-201910/20120914234123.gif"><p></p>