php - headMeta -appendName 或appendHttpEquiv

Question

headMeta() 的appendName() 和appendHttpEquiv() 方法有什么区别？例如，keywords 是与 Name 或 http-equiv 一起使用吗？

$view->headMeta()->appendHttpEquiv('keywords', 'keys');
or 
$view->headMeta()->appendName('keywords', 'keys');

Answer 1

区别在于

$view->headMeta()->appendHttpEquiv('keywords', 'keys');

创建

<meta http-equiv="keywords" content="keys" >

同时

$view->headMeta()->appendName('keywords', 'keys');

创建

<meta name="keywords" content="keys" >

According to the W3C specs

http-equiv may be used in place of the name attribute. HTTP servers use this attribute to gather information for HTTP response message headers.

XHTML2.0 specs对此有更多描述:

HTTP-EQUIV binds the element to an HTTP header field. An HTTP server may use this information to process the document. In particular, it may include a header field in the responses to requests for this document: the header name is taken from the HTTP-EQUIV attribute value, and the header value is taken from the value of the CONTENT attribute. HTTP header names are not case sensitive.

NAME specifies the name of the name/value pair. If not present, HTTP-EQUIV gives the name.

由于您不太可能在 header 中发送关键字，因此使用名称是正确的方法。