Tuesday, October 20, 2015

Gender Checker

I was often unsure if a name is male or female, but I have found this http://www.namesgenerator.org/check-name-gender-tool which works pretty well:

According to meaningofname.org gender for Sisi is Girl
According to namespedia.com gender for Sisi is 76% feminine, 24% masculine.

Monday, October 19, 2015

HITACHi Air Conditioner green light turn off

Since last year I have a HITACHI Air Conditioner and the technician told me to clean the filters every two weeks, but he didn't mention anything about the green led. So after a while, this green light turned on, I noticed it has something to do with the filters so I have cleaned them hoping it has some sensor and will turn off automatically. But it didn't. Later I found you have to press the AUTO SWING from the remote while the unit is off. And after 200 hours of functioning it will turn on again to remind you about cleaning the filters.

Pasting source code in friendly format

Here are three tools you can use to paste source codes:

http://codeformatter.blogspot.de
http://hilite.me/
http://markup.su/highlighter/

Tuesday, October 06, 2015

Mass kill processes in MySQL "show processlist"

So your server load is high you did "SHOW PROCESSLIST;" and you noticed many slow queries and you want to kill them.
If the list is too long to do it manually, you may want to try this way:

<?php

include("mySqlClass.inc.php");

$serv="localhost";
$user="root";
$pass="YOUR_PASS";
$database="SOME_DB";


$link = new mySqlClass();
$link->Connect($serv,$user,$pass,$database);
$result=$link->SqlQuery("SHOW FULL PROCESSLIST");
while ($result->NextRow()) {
    $process_id=$result->field["Id"];
    if ($result->field["Time"]>200) $link->SqlQuery("KILL $process_id");
}   

?>


and the mySqlClass.inc.php:


<?php

class mySqlClass {

  public $query_count;
  public $query_time;

  private $database;
  public $link;
  private $db_connected;

  function __construct()
  {
    $this->query_count = 0;
    $this->query_time = 0;
  }

  public function Connect($host, $user, $password, $database)
  {
    $this->database = $database;

    $this->link = @mysql_connect($host, $user, $password, true);

    if ($this->link)
    {
      if (@mysql_select_db($database, $this->link))
      {
        $this->db_connected = true;
        return true;
      }
    }

    $this->_error(mysql_errno(), mysql_error());
    return false;
  }

  public function SqlQuery($sql)
  {
    $time_start = explode(' ', microtime());

    if (!$this->db_connected) $this->_error(0, 'Error: MySQL DB Not Connected');

    $result_resource = @mysql_query($sql, $this->link);

    if (!$result_resource) $this->_error(@mysql_errno($this->link), @mysql_error($this->link));

    $obj = new SqlQueryResult($result_resource);

    if ($obj->RowCount() > 0)
    {
      // Return the first row of data results
      $result_array = @mysql_fetch_array($result_resource, MYSQL_ASSOC);

      if ($result_array)
      {
        while (list($key, $value) = each($result_array))
        {
          $obj->field[$key] = $value;
        }
      }
    }

    $time_end = explode (' ', microtime());
    $query_time = $time_end[1]+$time_end[0]-$time_start[1]-$time_start[0];
    $this->query_time += $time_end[1] + $time_end[0] - $time_start[1] - $time_start[0];
    $this->query_count++;

    return($obj);
  }

  public function QueryCount()
  {
    return $this->query_count;
  }

  public function QueryTime()
  {
    return $this->query_time;
  }

  private function _error($error_number, $error_text)
  {
    if ($error_number != 1141)
    {
      echo "Error #$error_number: $error_text";
      die();
    }
  }
}


class SqlQueryResult {

  public $field;

  private $result_resource;
  private $num_rows;
  private $current_row;

  function  __construct($result_resource)
  {
    $this->result_resource = $result_resource;
    $this->current_row = 0;
    $this->num_rows = @mysql_num_rows($this->result_resource);
    $this->field = array();
  }

  public function NextRow()
  {
    if ($this->current_row === 0)
    {
      // Row already fetched from SqlQuery() function
      // Do nothing
    }
    else if ($this->num_rows > 0 AND $result_array = @mysql_fetch_array($this->result_resource, MYSQL_ASSOC))
    {
      // This is the next iteration and there is a counted row returned
      // Grab data array
      if ($result_array)
      {
        while (list($key, $value) = each($result_array))
        {
          $this->field[$key] = $value;
        }
      }
    }
    else
    {
      // No more rows, end of data iteration
      // End result
      return false;
    }

    $this->current_row++;

    return true;
  }

  public function RowCount()
  {
    return $this->num_rows;
  }
}