Merge pull request #133 in ZP/z-push from...

Merge pull request #133 in ZP/z-push from feature/ZP-781-nicer-format-for-memory-usage-and to develop

* commit '673e1981':
  ZP-781 Use comma as decimal and dot as thousand separators, add 's' as unit for time usage.
  ZP-781 Nicer format for memory usage.

src/lib/core/zlog.php

@@ -140,13 +140,16 @@ class ZLog {
     static public function WriteEnd() {
         if (LOGLEVEL_DEBUG <= LOGLEVEL || (LOGLEVEL_DEBUG <= LOGUSERLEVEL && self::$userLog)) {
             if (version_compare(phpversion(), '5.4.0') < 0) {
-                $time_used = number_format(time() - $_SERVER["REQUEST_TIME"], 4);
+                $time_used = number_format(time() - $_SERVER["REQUEST_TIME"], 2, ',', '.');
             }
             else {
-                $time_used = number_format(microtime(true) - $_SERVER["REQUEST_TIME_FLOAT"], 4);
+                $time_used = number_format(microtime(true) - $_SERVER["REQUEST_TIME_FLOAT"], 2, ',', '.');
             }
+            $peakUsage = memory_get_peak_usage(false);
+            $truePeakUsage = memory_get_peak_usage(true);
 
-            ZLog::Write(LOGLEVEL_DEBUG, sprintf("Memory usage information: %s/%s - Execution time: %s - HTTP responde code: %s", memory_get_peak_usage(false), memory_get_peak_usage(true), $time_used, http_response_code()));
+            ZLog::Write(LOGLEVEL_DEBUG, sprintf("Memory usage information: %s/%s (%s B/%s B) - Execution time: %ss - HTTP responde code: %s",
+                    Utils::FormatBytes($peakUsage), Utils::FormatBytes($truePeakUsage), $peakUsage, $truePeakUsage, $time_used, http_response_code()));
             ZLog::Write(LOGLEVEL_DEBUG, "-------- End");
         }
     }

src/lib/utils/utils.php

@@ -950,6 +950,24 @@ class Utils {
 
         return $res;
     }
+
+    /**
+     * Format bytes to a more human readable value.
+     * @param int $bytes
+     * @param int $precision
+     *
+     * @access public
+     * @return void|string
+     */
+    public static function FormatBytes($bytes, $precision = 2) {
+        if ($bytes <= 0) return '0 B';
+
+        $units = array('B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB');
+        $base = log ($bytes, 1024);
+        $fBase = floor($base);
+        $pow = pow(1024, $base - $fBase);
+        return sprintf ("%.{$precision}f %s", $pow, $units[$fBase]);
+    }
 }