Further split out Class.Basic

- Email/File/Hash class update
- add random key, running time
- get system calls
- Debug classes for logging, running time, etc

www/lib/CoreLibs/Get/System.php

@@ -0,0 +1,85 @@
+<?php declare(strict_types=1);
+
+/*
+ * system related functions to get self name, host name, error strings
+ */
+
+namespace CoreLibs\Get;
+
+class System
+{
+		/**
+	 * helper function for PHP file upload error messgaes to messge string
+	 * @param  int    $error_code integer _FILE upload error code
+	 * @return string                     message string, translated
+	 */
+	public static function fileUploadErrorMessage(int $error_code): string
+	{
+		switch ($error_code) {
+			case UPLOAD_ERR_INI_SIZE:
+				$message = 'The uploaded file exceeds the upload_max_filesize directive in php.ini';
+				break;
+			case UPLOAD_ERR_FORM_SIZE:
+				$message = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form';
+				break;
+			case UPLOAD_ERR_PARTIAL:
+				$message = 'The uploaded file was only partially uploaded';
+				break;
+			case UPLOAD_ERR_NO_FILE:
+				$message = 'No file was uploaded';
+				break;
+			case UPLOAD_ERR_NO_TMP_DIR:
+				$message = 'Missing a temporary folder';
+				break;
+			case UPLOAD_ERR_CANT_WRITE:
+				$message = 'Failed to write file to disk';
+				break;
+			case UPLOAD_ERR_EXTENSION:
+				$message = 'File upload stopped by extension';
+				break;
+			default:
+				$message = 'Unknown upload error';
+				break;
+		}
+		return $message;
+	}
+
+	/**
+	 * get the host name without the port as given by the SELF var
+	 * @return array host name/port name
+	 */
+	public static function getHostName(): array
+	{
+		$port = '';
+		if ($_SERVER['HTTP_HOST'] && preg_match("/:/", $_SERVER['HTTP_HOST'])) {
+			list($host_name, $port) = explode(":", $_SERVER['HTTP_HOST']);
+		} elseif ($_SERVER['HTTP_HOST']) {
+			$host_name = $_SERVER['HTTP_HOST'];
+		} else {
+			$host_name = 'NA';
+		}
+		return [$host_name, ($port ? $port : 80)];
+	}
+
+	/**
+	 * get the page name of the curronte page
+	 * @param  int    $strip_ext 1: strip page file name extension
+	 *                           0: keep filename as is
+	 *                           2: keep filename as is, but add dirname too
+	 * @return string            filename
+	 */
+	public static function getPageName(int $strip_ext = 0): string
+	{
+		// get the file info
+		$page_temp = pathinfo($_SERVER['PHP_SELF']);
+		if ($strip_ext == 1) {
+			return $page_temp['filename'];
+		} elseif ($strip_ext == 2) {
+			return $_SERVER['PHP_SELF'];
+		} else {
+			return $page_temp['basename'];
+		}
+	}
+}
+
+// __END__