C# WebBrowser control - document does not contain html input control

Working solution is here: http://stackoverflow.com/a/22262976/991058 Another solutions is to invoke java sript functions from code behind that operates on html elements and return result to code behind.

How to log all queries in mysql ?

	-- enable db table logging
	SET GLOBAL log_output = 'TABLE';
	SET GLOBAL general_log = 'ON';
	-- table with logs
	select * from mysql.general_log
	-- disable logging
	SET GLOBAL general_log = 'ON';
	-- enable file logging
	SET GLOBAL log_output = "FILE"; -- which is set by default.
	SET GLOBAL general_log_file = "/path/to/your/logfile.log";
	SET GLOBAL general_log = 'ON';

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Thanks to: http://stackoverflow.com/a/678310/991058

How to serialize / deserialize object to json in C# ?

	// Install-Package Newtonsoft.Json
	using Newtonsoft.Json;
	public static void SerializeJson(this object obj, string filePath)
	{
	string json = JsonConvert.SerializeObject(obj, Formatting.Indented);
	using (StreamWriter sw = new StreamWriter(filePath))
	{
	sw.WriteLine(json);
	}
	}
	public static T DeserializeJson<T>(this T obj, string jsonFilePath)
	{
	string json = null;
	using (StreamReader sr = new StreamReader(jsonFilePath))
	{
	json = sr.ReadToEnd();
	}
	return JsonConvert.DeserializeObject<T>(json);
	}

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How to copy table in MySql ?

CREATE TABLE proxy_20150716 AS SELECT * FROM proxy

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How to invoke object method with arguments passed as argument in PHP ?

	class Test
	{
	public function f1(array $keywords)
	{
	foreach($keywords as $keyword)
	{
	echo "f1():" . $keyword . "<br/>";
	}
	}
	public function f2(array $keywords)
	{
	foreach($keywords as $keyword)
	{
	echo "f2():" . $keyword . "<br/>";
	}
	}
	public function start()
	{
	$this->run([$this, 'f1'], ['aaa', 'bbb']);
	$this->run([$this, 'f2'], ['aaa', 'bbb']);
	}
	public function run($func, $args)
	{
	$func($args);
	}
	}
	$test = new Test();
	$test->start();
	// output
	// f1():aaa
	// f1():bbb
	// f2():aaa
	// f2():bbb

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