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Defining a value in the parameter list makes that parameter optional. If it's not provided when the function is called, the it takes on the value assigned to it. Your specific example doesn't really make use of the feature effectively. Take something like this for example though: function findFiles($directory, $includeHidden = false){ $iter = new DirectoryIterator($directory); $list = []; foreach ($iter as $item){ if ($item->isFile()){ $isHidden = $item->getFilename()[0] === '.'; if ($includeHidden || !$isHidden){ $list[] = $item->getPathname(); } } } return $list; } That function requires at least one parameter when it's called, the directory to search. So you end up with the following options for calling it $files = findFiles('/home/kicken'); /* executes with $directory = '/home/kicken', $includeHidden = false */ $files = findFiles('/home/aoeex', true); /* executes with $directory = '/home/aoeex', $includeHidden = true */1 point
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The enclosure parameter (4th argument) should default to double quotes. You might try specifying it anyway to see what happens.1 point
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ucfirst()1 point
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<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="Lang" content="en"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"> <title>Example</title> <script type="text/javascript"> $().ready( function() { $("#firstname").change( function() { makeUsername() }) $("#surname").change( function() { makeUsername() }) }) function makeUsername() { var a = $("#surname").val().substring(0,8).toLowerCase() var b = $("#firstname").val().substring(0,1).toLowerCase() $("#username").val(a+b) } </script> </head> <body> <form> <label for="firstname"> <i class="fa fa-user"></i> </label> <input type="text" name="firstname" placeholder="Firstname" id="firstname" required><br> <label for="surname"> <i class="fa fa-user"></i> </label> <input type="text" name="surname" placeholder="Surname" id="surname" required><br> <label for="username"> <i class="fa fa-user"></i> </label> <input type="text" name="username" placeholder="Username" id="username" required readonly><br> </body> <label for="password"> <i class="fa fa-lock"></i> </label> <input type="password" name="password" placeholder="Password" id="password" required> </form> </body> </html> Now, is there anything else I can do for you? Cut up your food into bite-size pieces maybe?1 point
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