The above runs a command ls -t to show files in a directory, order by modification time -t, it then just grabs the first one in the list head -1 i.e. the latest back up file. The output is then piped to mysql where the SQL is ran.

// convert Characters
returnString = returnString.replace(/ö/g, 'o');
returnString = returnString.replace(/ç/g, 'c');
returnString = returnString.replace(/ş/g, 's');
returnString = returnString.replace(/ı/g, 'i');
returnString = returnString.replace(/ğ/g, 'g');
returnString = returnString.replace(/ü/g, 'u');

// if there are other invalid chars, convert them into blank spaces
returnString = returnString.replace(/[^a-z0-9\s-]/g, "");
// convert multiple spaces and hyphens into one space
returnString = returnString.replace(/[\s-]+/g, " ");
// trims current string
returnString = returnString.replace(/^\s+|\s+$/g,"");
// cuts string (if too long)
if(returnString.length > maxLength)
    returnString = returnString.substring(0,maxLength);
// add hyphens
returnString = returnString.replace(/\s/g, "-");

/**
  * Remove all characters that do not fit regex antipattern.
  *
  * @param string $string
  * @param string $antiPattern
  **/
function stripInvalidStringChars($string, $antiPattern) {
    return preg_replace('/ {2,}/',' ',preg_replace($antiPattern, '', $string));
}

$array = array(123,32,321,3442,342);
$r = array_filter($array, create_function('$val', 'return (int)$val;'));
if(count($array) != count($r)) {
  echo 'not valid';
}else {
  echo 'valid';
}

I have tested the snippet on MySQL 5 only.

SELECT SQL_COUNT ROWS *, tableName.id, tableName.someCol
FROM tableName
LIMIT 0,25;

SELECT SELECT FOUND_ROWS();

For example, say the above table tableName has a total of 100 rows, running the above queries one after another would first return a result set of 25 rows, then the second query would return 100, the total number of rows.

It may be interesting also to see if there is a performance difference between a 3 or a 2 query approach, as the MySQL manual only shows running the SQL_COUNT_ROWS * statement on it’s own, unlike with columns as I have done here.

My hunch is that 2 queries would be faster but maybe not for tables with millions of rows?

http://dev.mysql.com/doc/refman/5.0/en/information-functions.html#function_found-rows

• the boolean FALSE itself
• the integer 0 (zero)
• the float 0.0 (zero)
• the empty string, and the string “0″
• an array with zero elements
• an object with zero member variables (PHP 4 only)
• the special type NULL (including unset variables)
• SimpleXML objects created from empty tags

Every other value is considered TRUE (including any resource).

More information here