add a few plugins

plugins/AdminerReadableTableSize.php

@@ -0,0 +1,50 @@
+<?php
+
+/** This plugin replaces bytes sizes in tables list with human-readable sizes.
+ * Original sizes are set to the title=""
+ *
+ * @link    https://www.adminer.org/plugins/#use
+ * @author  Anonymous
+ * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
+ * @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 (one or other)
+ */
+
+class AdminerReadableTableSize
+{
+	/** @access protected */
+	var $prepend;
+
+	function __construct()
+	{
+		$this->prepend = <<<EOT
+function AdminerReadableTableSizeConvert(a,b){if(0==a)return"0 Bytes";var c=1024,d=b||2,e=["Bytes","KB","MB","GB","TB","PB","EB","ZB","YB"],f=Math.floor(Math.log(a)/Math.log(c));return parseFloat((a/Math.pow(c,f)).toFixed(d))+" "+e[f]}
+function AdminerReadableTableSize(field) {
+	var rows = document.querySelectorAll('[id*="'+field+'"]');
+	for (var i = 0; i < rows.length; i++) {
+		var row = rows[i];
+		var bytes = row.innerText.replace(/,/g, '');
+		var sized = '-';
+		if (bytes > 0) {
+			sized = AdminerReadableTableSizeConvert(bytes, 2);
+		}
+		row.title = row.title+' [' + row.innerText + ' Bytes]';
+		row.innerText = sized;
+	}
+}
+document.addEventListener('DOMContentLoaded', function(event) {
+	setTimeout(function() {
+		AdminerReadableTableSize('Data_length');
+		AdminerReadableTableSize('Index_length');
+		AdminerReadableTableSize('Data_free');
+	}, 500);
+});
+
+EOT;
+	}
+
+	function head()
+	{
+		echo script($this->prepend);
+	}
+
+}