如何使用CodeIgniter在URL中传递MySQL Datetime值？

Question

I would like to pass a MySQL Datetime value like below in a site URL which is build using Codeigniter. So the datetime value is eg

2012-05-04 07:41:45

And I want it to be passed in a site URL using some king of encoding or string conversion. As I have already tried using php urlencode() function but it is not working.

The reason to pass this in URL is because I am querying some records from database related to that Datetime. So I must pass it as an Argument to Controller and for that I must pass it under URL.

Any suggestion?

Thanks in advance.

Answer 1

Easy:

function receiving_function($time)
{
     $date = date("Y-m-d h:i:s", $time);  // Format this however you want the data
}


function sending_data()
{
    $date = strtotime("2012-05-04 07:41:45");
    redirect ('/yourcontroller/receiving_function/'.$date).
}

Answer 2

If your datetime is inside timestamp boundaries, you could convert it to a Unix Timestamp:

function mysql2timestamp($datetime){
   $val = explode(" ",$datetime);
   $date = explode("-",$val[0]);
   $time = explode(":",$val[1]);
   return mktime($time[0],$time[1],$time[2],$date[1],$date[2],$date[0]);
}

Answer 3

just use strtotime

echo strtotime('2012-05-04 07:41:45');

Outputs:

1336088505

You could also base64_encode it to preserve the exact string, but I doubt that's really worth it ;-)

Answer 4

To preserve the exact string, I sometimes convert any non-standard url query values to hexadecimal from ASCII. On the next page, convert from hexadecimal to ASCII.

Refer to http://www.pgregg.com/projects/php/code/hexstr.phps

In some situations, I find it useful when passing search query keywords as well.

Answer 5

"There's an app for that!"

Codeigniter provides a handy encryption class - no main improvements over base64 but the benefit is that you get to choose the cipher you want.

Instead of passing into the URI, could you not collect from $_GET?

$this->load->library('encrypt');

$datetime = "2012-05-04 07:41:45";

$encrypted_string = $this->encrypt->encode($datetime);

$hello_again = $this->encrypt->decode($encrypted_string);