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When users register to my website I want to allow them to use spaces in their username, but only one space per word. My current code: $usor = $_POST['usernameone']; $allowed = "/[^a-z0-9 ]/i"; $username = preg_replace($allowed,"",$usor); $firstlettercheck = $username[0]; $lastlettercheck = substr("$username", -1); if ($firstlettercheck == " " or $lastlettercheck == " ") { echo "Usernames can not contain a space at start/end of username."; } What do I need to add to ensure there is only one space entered inebtween words of the username? h2ooooooo You can use a regex of (^\s+|\s{2,}|\s+$) to

This question already has an answer here: Need help with getline() 7 answers Hey, I'm trying to write a program that will accept new tasks from people, add it to a stack, be able to display the task, be able to save that stack to a text file, and then read the text file. The issue comes when I am trying to accept input from the user, whenever you enter a string with a space in it, the menu to choose what to do just loops. I need a way to fix this. Any help would be greatly appreciated. // basic file io operations #include <iostream> #include <fstream> #include <stack> #include <string> using

I just found I cannot remove the space between 2 buttons even if I set the layout_marginRight and layout_marginLeft as below. But it make sense if I set the space larger such as 10 dp. Any way to solve it? <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:orientation="horizontal" android:padding="0dp" android:layout_height="wrap_content" android:gravity="fill_horizontal" android:layout_margin="0dp"> <Button android:id="@+id/LocationTitleButton" android:layout_width="wrap_content" android