Change date to MySql format

[code green]

I know this is simple but I have been using mssql for so long
I have forgotten how to do it in MySql.

I am reading a date from a CSV file of the format

dd/mm/yyyy

How do I convert this to ISO 8601 standard

yyyy-mm-dd

The value is an array element of which I am looping through removing
spaces and currency symbols and hopefully correcting the date

foreach($row as &$element)
{
    $element = trim($element);
    if(strpos($element,'£'))
        $element = ltrim(($element),'£');
    if(strpos($element,'date'))
          /*******How do I convert to MySql **************/
}

[hoopy]

There are quite a few ways to do it, explode it into an array and rebuild it I guess or what about something like this:

$date = "12/05/2009";
$date = preg_replace("/([0-9]{2})\/([0-9]{2})\/([0-9]{4})/", '$3-$2-$1', $date);
echo $date;

Would output:

2009-05-12

So just use that when you insert into the MySQL Date field?

[code green]

Thanks for the reply Hoopy.
But woke up this morning and remembered.
This is my code

foreach($row as $key=>&$element)
{
    if(stripos($key,'date')!==false)
        $element = date('Y-m-d',strtotime($element));

Or 'Y-m-d' could be replaced with 'c' for PHP 5 but this adds an empty time value

This works for an assoc array where any date element has 'date' as part of the key name