使用ob_start
(PHP)我使用从StackOverflow复制的正则表达式缩小我的HTML我相信:
$regex = '%# Collapse whitespace everywhere but in blacklisted elements.
(?> # Match all whitespans other than single space.
[^\S ]\s* # Either one [\t\r\n\f\v] and zero or more ws,
| \s{2,} # or two or more consecutive-any-whitespace.
) # Note: The remaining regex consumes no text at all...
(?= # Ensure we are not in a blacklist tag.
[^<]*+ # Either zero or more non-"<" {normal*}
(?: # Begin {(special normal*)*} construct
< # or a < starting a non-blacklist tag.
(?!/?(?:textarea|pre|script)\b)
[^<]*+ # more non-"<" {normal*}
)*+ # Finish "unrolling-the-loop"
(?: # Begin alternation group.
< # Either a blacklist start tag.
(?>textarea|pre|script)\b
| \z # or end of file.
) # End alternation group.
) # If we made it here, we are not in a blacklist tag.
%Six';
$text = preg_replace($regex, ' ', $text);
这很好用,除了我想从HTML文件中的内联JS中删除一些空格。它不一定是最先进的,只是JS的一些基本缩小。我将如何为此编写正则表达式?
我尝试使用前瞻和后视,但是后视必须是固定长度,因此造成了一些麻烦。我也很难理解上面的正则表达式......
有人有一个基本的例子,我如何在脚本标签中匹配不必要的空格?