"检查了我的PHP ini文件，并设置显示错误，也是错误报告E_ALL。重新启动了我的Apache Web服务器。
甚至把这些行放在我的脚本的顶部，它甚至不能捕捉简单的解析错误。所有的脚本都显示了这些错误的空白页面，但是想在浏览器输出中看到错误。
error_reporting(E_ALL);
ini_set('display_errors', 1);
应该如何显示PHP详细错误信息呢？"
回答 1
它们的区别，我看到的有如下几点：
1.curl是libcurl这个库支持的，wget是一个纯粹的命令行命令。
2.curl支持更多的协议。curl supports FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, POP3, IMAP, SMTP and RTSP at the time of this writing. Wget supports HTTP, HTTPS and FTP.
3.curl 默认支持HTTP1.1（也支持1.0），而wget仅仅支持HTTP1.0规范。引用wget的man page中的一段话吧，Please be aware that Wget needs to know the size of the POST data in advance. It's not quite clear how to work around this limitation inherent in HTTP/1.0. Although HTTP/1.1 introduces chunked transfer that doesn't require knowing the request length in advance, a client can't use chunked unless it knows it's talking to an HTTP/1.1 server. And it can't know that until it receives a response, which in turn requires the request to have been completed -- a chicken-and-egg problem.
4.curl在指定要下载的链接时能够支持URL的序列或集合，而wget则不能这样;
5.wget支持递归下载，而curl则没有这个功能。（这是wget的一个主要好处，wget也是有优势的，呵呵）
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