cdata | 易学教程

What is CDATA in HTML? [duplicate]

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问题 This question already has an answer here: When is a CDATA section necessary within a script tag? 15 answers What is the use of CDATA inside JavaScript tags and HTML? <script type=\"text/javascript\"> // <![CDATA[ // ]]> </script> 回答1: All text in an XML document will be parsed by the parser. But text inside a CDATA section will be ignored by the parser. CDATA - (Unparsed) Character Data The term CDATA is used about text data that should not be parsed by the XML parser. Characters like "<" and

Is there a way to escape a CDATA end token in xml?

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问题 I was wondering if there is any way to escape a CDATA end token ( ]]> ) within a CDATA section in an xml document. Or, more generally, if there is some escape sequence for using within a CDATA (but if it exists, I guess it\'d probably only make sense to escape begin or end tokens, anyway). Basically, can you have a begin or end token embedded in a CDATA and tell the parser not to interpret it but to treat it as just another character sequence. Probably, you should just refactor your xml

PHP: How to handle <![CDATA[ with SimpleXMLElement?

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I noticed that when using SimpleXMLElement on a document that contains those CDATA tags, the content is always NULL . How do I fix this? Also, sorry for spamming about XML here. I have been trying to get an XML based script to work for several hours now... <content><![CDATA[Hello, world!]]></content> I tried the first hit on Google if you search for "SimpleXMLElement cdata", but that didn't work. Josh Davis You're probably not accessing it correctly. You can output it directly or cast it as a string. (in this example, the casting is superfluous, as echo automatically does it anyway) $content =

PHP: How to handle <![CDATA[ with SimpleXMLElement?

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问题 I noticed that when using SimpleXMLElement on a document that contains those CDATA tags, the content is always NULL . How do I fix this? Also, sorry for spamming about XML here. I have been trying to get an XML based script to work for several hours now... <content><![CDATA[Hello, world!]]></content> I tried the first hit on Google if you search for \"SimpleXMLElement cdata\", but that didn\'t work. 回答1: You're probably not accessing it correctly. You can output it directly or cast it as a

What does <![CDATA[]]> in XML mean?

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问题 I often find this strange CDATA tag in XML files: <![CDATA[some stuff]]> I have observed that this CDATA tag always comes at the beginning, and then followed by some stuff. But sometimes it is used, sometimes it is not. I assume it is to mark that some stuff is the \"data\" that will be inserted after that. But what kind of data is some stuff ? Isn\'t anything I write in XML tags some sort of data? 回答1: CDATA stands for Character Data and it means that the data in between these strings

When is a CDATA section necessary within a script tag?

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问题 Are CDATA tags ever necessary in script tags and if so when? In other words, when and where is this: <script type=\"text/javascript\"> //<![CDATA[ ...code... //]]> </script> preferable to this: <script type=\"text/javascript\"> ...code... </script> 回答1: A CDATA section is required if you need your document to parse as XML (e.g. when an XHTML page is interpreted as XML) and you want to be able to write literal i<10 and a && b instead of i<10 and a && b , as XHTML will parse the JavaScript code