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PHP generally follows C syntax, with exceptions and enhancements for its main use in web development, which makes heavy use of string manipulation. PHP variables must be prefixed by " $ ". This allows PHP to perform string interpolation in double quoted strings, where backslash is supported as an escape character .
The revision after the edit appears below the changes so you can see the result of the edit. (hist) takes you to the page history, so you can see all edits made to that page. This can be useful if someone has updated a page you have worked on, and you want to see their changes. The difference in size between this revision and the previous revision.
This article lists the character entity references that are valid in HTML and XML documents. A character entity reference refers to the content of a named entity. An entity declaration is created in XML, SGML and HTML documents (before HTML5) by using the <!ENTITY name "value"> syntax in a document type definition (DTD).
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The W3C recommends several conventions to ensure an easy migration between HTML and XHTML (see HTML Compatibility Guidelines). The following steps can be applied to XHTML 1.0 documents only: Include both xml:lang and lang attributes on any elements assigning language. Use the empty-element syntax only for elements specified as empty in HTML.
See also: the {} template. The #if function selects one of two alternatives based on the truth value of a test string. {{#if: test string | value if true | value if false}} As explained above, a string is considered true if it contains at least one non-whitespace character. Any string containing only whitespace or no characters at all will be ...
A Lua pattern is a special string that can match several different strings. For people who know regular expressions, Lua patterns are similar, but more limited. See the following documentation for how to construct patterns: Introduction to Lua patterns; Scribunto ASCII pattern documentation; Scribunto unicode string pattern documentation
The code between the if and endif markup can be any HTML content that is included if the condition evaluates true or excluded otherwise. An expression can contain the name of a feature, literal values and comparison operators. Feature names include: IE – version of IE that is parsing the HTML document; WindowsEdition – edition of Windows ...