What is the recommended method in PHP to check the length of a password input?

When checking the length of a password input in PHP, the recommended method is to use the `strlen()` function to get the length of the input string and then compare it to a predefined minimum and maximum length. This ensures that the password meets the required length criteria before proceeding with any further validation or processing. 

$password = $_POST['password'];

$min_length = 8;
$max_length = 20;

if(strlen($password) < $min_length || strlen($password) > $max_length){
    echo "Password must be between $min_length and $max_length characters long.";
    // Additional validation or error handling can be added here
} else {
    // Password length is valid, proceed with further validation or processing
}

Keywords

PHP password input length validation

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