What to do if php text displays garbled characters

PHP is a popular open source scripting language that is widely used in website development, web applications, and server-side scripting. However, sometimes when we use PHP, we will encounter garbled text display, which not only affects the aesthetics of the website, but also affects the transmission and communication of information. This article will introduce to you the reasons and solutions for why PHP text displays garbled characters.

1. Reasons:

1. Character set does not match

When we read data from the database in PHP, if the character set in the database and the characters of PHP If the set does not match, the text will be garbled. For example, when we read data from a database that uses the UTF-8 character set and display them in a web page that uses the GB2312 character set, garbled characters are prone to appear.

2. Incorrect encoding format

In PHP, if we use the wrong encoding format, such as using ASCII encoding format to represent Chinese characters, it will cause garbled text. Because the ASCII encoding format can only represent English characters and symbols, it cannot represent Chinese characters.

3. The encoding setting of the output stream is incorrect

If the encoding setting of the output stream in PHP is incorrect, it can easily lead to garbled text. For example, if we output data stored in UTF-8 encoding format to a file using GB2312 encoding format, the text will be garbled.

2. Solution:

1. Set the correct character set

In PHP, in order to avoid garbled text, we need to ensure that the database, PHP and web pages all use the same character set character set. Therefore, in PHP we need to use the correct character set to connect to the database and use the correct character set when displaying data. We can use the following code to set the character set in PHP:

mysqli_set_charset($conn,"utf8");//Set the character set to UTF-8

2. Use the correct encoding format

In PHP, we need to use the correct encoding format to represent different characters. For example, when representing Chinese characters, we need to use UTF-8 encoding format instead of ASCII encoding format. In PHP, we can use the following code to set the encoding format:

header('Content-Type:text/html;charset=utf-8');//Set the page encoding format to UTF-8

3. Correctly set the encoding of the output stream

In PHP, we need to ensure that the encoding of the output stream matches the encoding format of the web page to avoid garbled text. We can use the following code in PHP to set the encoding of the output stream:

header("Content-Type:text/html;charset=utf-8");//Set the encoding of the output stream to UTF- 8

Summary:

PHP is a popular open source scripting language, but you may encounter text garbled problems during use. The main causes of these problems include mismatched character sets, incorrect encoding formats, and incorrect output stream encoding settings. To avoid these problems, we need to set the correct character set, use the correct encoding format, and correctly set the encoding of the output stream. Correctly handling the problem of garbled text can ensure the correct transmission of information and the aesthetics of the website.

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