What potential pitfalls can arise when checking string lengths in PHP?

One potential pitfall when checking string lengths in PHP is not accounting for multibyte characters, which can lead to incorrect length calculations. To solve this issue, you can use the mb_strlen() function in PHP, which handles multibyte characters properly. 

// Check string length using mb_strlen() to handle multibyte characters
$string = "Hello, こんにちは";
$length = mb_strlen($string);

if ($length > 10) {
    echo "String is longer than 10 characters";
} else {
    echo "String is 10 characters or shorter";
}

Keywords

strlen mb_strlen multibyte encoding character_limit

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