How can you properly concatenate strings in PHP to avoid syntax errors?

When concatenating strings in PHP, it's important to use the correct concatenation operator, which is the period (.) rather than the plus sign (+) used in some other programming languages. This will help avoid syntax errors and ensure that the strings are combined correctly. Additionally, make sure to properly escape any special characters within the strings to prevent unexpected behavior.

// Correct way to concatenate strings in PHP
$string1 = "Hello";
$string2 = "World";
$combinedString = $string1 . " " . $string2;
echo $combinedString;