What are some common pitfalls when concatenating strings in PHP, and how can they be avoided?

One common pitfall when concatenating strings in PHP is forgetting to properly escape special characters, such as quotes or backslashes, which can lead to syntax errors or unexpected behavior. To avoid this issue, you can use the `addslashes()` function to escape special characters before concatenating the strings. 

$string1 = "Hello, ";
$string2 = "world!";
$escapedString2 = addslashes($string2);

$finalString = $string1 . $escapedString2;

echo $finalString;

Keywords

string concatenation PHP concatenation operator type conversion empty string

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