Why Am I Getting a 'Character Encoding Not Declared' Error in My HTML Document?-PHP Tutorial-php.cn

Why Am I Getting a 'Character Encoding Not Declared' Error in My HTML Document?

Barbara Streisand

Release： 2024-11-08 21:03:01

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Why Am I Getting a

Character Encoding Error in HTML Document

You may encounter the error message "The character encoding of the HTML document was not declared" when certain non-ASCII characters are present in your document. This issue arises because the browser needs to know the character encoding used in the document to render text correctly.

In your case, the error message suggests that the character encoding has not been declared in your "insert.html" file. Let's examine the provided code:

insert.html:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    <title>insert page</title>
</head>
<!-- ... -->
</html>

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As you can see, you have already specified the character encoding as "UTF-8" using the following line within the section:

<meta http-equiv="content-type" content="text/html; charset=utf-8" />

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However, if the browser encounters any characters outside the US-ASCII range before this line, it may not be able to interpret them correctly. To resolve this issue, ensure that this line is placed immediately after the tag, with no other lines preceding it.

Additionally, add the following line below the charset declaration:

<meta http-equiv="encoding" content="utf-8" />

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These changes will explicitly declare that the character encoding used in your document is UTF-8. By specifying this information, you enable browsers to render text correctly, even if it contains characters that are not within the ASCII range.

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