Basic Class update

Start moving all basic class methods into dedicated classes.
Most of them are static and can be direct called.
No need to group them into one big class that is hard to maintain and
check.

Work is ongoing

www/lib/CoreLibs/Convert/Html.php

@@ -0,0 +1,60 @@
+<?php declare(strict_types=1);
+
+/*
+ * html convert functions
+ */
+
+namespace CoreLibs\Convert;
+
+class Html
+{
+	/**
+	 * full wrapper for html entities
+	 * @param  mixed $string string to html encode
+	 * @return mixed         if string, encoded, else as is (eg null)
+	 */
+	public static function htmlent($string)
+	{
+		if (is_string($string)) {
+			return htmlentities($string, ENT_COMPAT|ENT_HTML401, 'UTF-8', false);
+		} else {
+			return $string;
+		}
+	}
+
+	/**
+	 * strips out all line breaks or replaced with given string
+	 * @param  string $string  string
+	 * @param  string $replace replace character, default ' '
+	 * @return string          cleaned string without any line breaks
+	 */
+	public static function removeLB(string $string, string $replace = ' '): string
+	{
+		return str_replace(array("\r", "\n"), $replace, $string);
+	}
+
+	/**
+	 * returns 'checked' or 'selected' if okay
+	 * $needle is a var, $haystack an array or a string
+	 * **** THE RETURN: VALUE WILL CHANGE TO A DEFAULT NULL IF NOT FOUND ****
+	 * @param  array|string $haystack (search in) haystack can be an array or a string
+	 * @param  string       $needle   needle (search for)
+	 * @param  int          $type     type: 0: returns selected, 1, returns checked
+	 * @return ?string                returns checked or selected, else returns null
+	 */
+	public static function checked($haystack, $needle, int $type = 0): ?string
+	{
+		if (is_array($haystack)) {
+			if (in_array((string)$needle, $haystack)) {
+				return $type ? 'checked' : 'selected';
+			}
+		} else {
+			if ($haystack == $needle) {
+				return $type ? 'checked' : 'selected';
+			}
+		}
+		return null;
+	}
+}
+
+// __END__