How can encoding and character set settings affect the display of special characters in PHP?

Encoding and character set settings can affect the display of special characters in PHP by causing them to be displayed incorrectly or as question marks. To solve this issue, you can set the appropriate encoding and character set in your PHP script using functions like `header()` or `mb_internal_encoding()`. 

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

// Set the internal encoding to UTF-8
mb_internal_encoding('UTF-8');

Keywords

Encoding Character set Special characters Display PHP

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