How can one efficiently concatenate a string variable with an array variable in PHP?

To efficiently concatenate a string variable with an array variable in PHP, you can use the implode() function to convert the array into a string, and then concatenate it with the string variable. This way, you can easily combine the two variables into a single string without any issues.

$string = "Hello ";
$array = ["World", "!"];
$combinedString = $string . implode(" ", $array);
echo $combinedString;