How can the MIME type of a variable's content be determined in PHP?

To determine the MIME type of a variable's content in PHP, you can use the `finfo` extension which provides functions to determine the MIME type of a file. You can create a `finfo` object and use the `file` method to get the MIME type of the variable's content. 

// Create a finfo object
$finfo = new finfo(FILEINFO_MIME_TYPE);

// Get the MIME type of the variable's content
$mime_type = $finfo->file($variable);

Keywords

PHP MIME type variable content determination

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