How can the user utilize var_dump to debug and identify the content of variables in PHP code effectively?

To debug and identify the content of variables in PHP code effectively, the user can utilize the var_dump function. var_dump displays structured information about one or more expressions that includes its type and value. This can help identify the content of variables, arrays, objects, and more during the debugging process.

$variable = "Hello, World!";
var_dump($variable);