一个菜鸟的提问
最近听php课程,感觉很难
下面是遇到的问题的代码
$url = "http://php.weather.sina.com.cn/search.php?city=021&dpc=1"; //目标站
$fp = @fopen($url, "r") or die("超时");
$fcontents = file_get_contents($url);
echo $fcontents;
?>
目的是利用别人网站的天气预报,但是不知道为什么就是打不开连接,人家网站的连接时有用的,打开老显示
无法显示网页
您正在查找的页当前不可用。 网站可能遇到支持问题,或者您需要 调整您的浏览器设置。
还请各位同仁高手帮我看看,谢谢大家了~
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我这边都正常,可以打开,而且可以正常抓取网页代码,不知道LZ遇到的什么情况,能发图么?
------解决方案--------------------
------解决方案--------------------
------解决方案--------------------
看起来是你的网站出的问题. 检查php.ini, 有没有打开错误提示 display_error = On

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In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.

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PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

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