/** * http测试 * 注:PHP版本5.2以上才支持CURL_IPRESOLVE_V4 * @param $url 网站域名 * @param $type 网站访问协议 * @param $ipresolve 解析方式 */ public function web_http($url,$type,$ipresolve) { //设置Header头 $header[] = "Accept: application/json"; $header[] = "Accept-Encoding: gzip"; $httptype = function_exists('curl_init'); if (!$httptype) { $html = file_get_contents($url); } else { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); //输出头信息 curl_setopt($ch, CURLOPT_HEADER, 1); //递归访问location跳转的链接,直到返回200OK curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); //不对HTML中的BODY部分进行输出 curl_setopt($ch, CURLOPT_NOBODY, 1); //将结果以文件流的方式返回,不是直接输出 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //以IPv4/IPv6的方式访问 if($ipresolve=='ipv6') { curl_setopt($ch,CURLOPT_IPRESOLVE,CURL_IPRESOLVE_V6); }else{ curl_setopt($ch,CURLOPT_IPRESOLVE,CURL_IPRESOLVE_V4); } //添加HTTP header头采用压缩和GET方式请求 curl_setopt( $ch, CURLOPT_HTTPHEADER, $header ); curl_setopt($ch,CURLOPT_ENCODING , "gzip"); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET'); //清除DNS缓存 curl_setopt($ch,CURLOPT_DNS_CACHE_TIMEOUT,0); //设置连接超时时间 curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,15); //设置访问超时 curl_setopt($ch,CURLOPT_TIMEOUT,50); //设置User-agent curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11'); if($type=="https") { //不对认证证书来源的检查 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //从证书中检查SSL加密算法是否存在 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, true); } //执行Curl操作 $html = curl_exec($ch); //获取一个cURL连接资源句柄的信息(获取最后一次传输的相关信息) $info = curl_getinfo($ch); curl_close($ch); } return $info; }
以上为一个基本curl访问的方法,由于这里需要通过使用IPv6的方式,所以加了相应的选项,相信大家能看的明白,平时经常用到的选项上面都有出现,大家根据需要取舍。
状态码提示405/Method Not Allowed表示不支持请求的方法,这个错误并不常见。
导致这个错误是要是由于curl默认是采用post方式进行提交访问的,post方式在此类域名下是没有权限的,比如在测试www.amazon.cn的时候就出现了这类问题,而修改为get的方式,并且增加了header头后,即可正常访问,个人推测,或许是亚马逊那边基本上都是采用get的方式,才会被认为是人为的点击,对post做了相应屏蔽。
对此增加了如下代码:
//设置Header头 $header[] = "Accept: application/json"; $header[] = "Accept-Encoding: gzip"; //添加HTTP header头采用压缩和GET方式请求 curl_setopt( $ch, CURLOPT_HTTPHEADER, $header ); curl_setopt($ch,CURLOPT_ENCODING , "gzip"); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
命令行的形式为:
curl -v www.amazon.cn

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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