如何格式化从jQuery datepicker返回的日期输入值，以匹配mysql DATE字段？

Question

I have a form with a jQuery datepicker. I have set the date format to the European way: dd-mm-yy in order to make it look nice for the user. However this date value eventually needs to be formatted back in PHP to yy-mm-dd so that in can be stored in my mysql DATE field . Here is my code:

Jquery:

   $("document").ready(function(){

    $(function() {
    $( ".datepicker" ).datepicker({
        monthNames: ['januari', 'februari', 'maart', 'april', 'mei', 'juni',
                     'juli', 'augustus', 'september', 'oktober', 'november', 'december'],
        dayNamesMin: ['Zo', 'Ma', 'Di', 'Wo', 'Do', 'Vr', 'Za'],
        dateFormat:'dd-mm-yy',
        });
});

Answer 1

You have three options (in some vague order of preference):

1. Use MySQL's STR_TO_DATE() function to convert the string:

    INSERT INTO ... VALUES (STR_TO_DATE(:date, '%d/%m/%Y')) 

2. Convert the string received from jQuery into a PHP DateTime object:

    $dt = DateTime::createFromFormat('d/m/Y', $_POST['date']); 

   and then either:

   • obtain a suitable formatted string:

      $date = $dt->format('Ym-d'); 

   • obtain the UNIX timestamp:

      $timestamp = $dt->getTimestamp(); 

     which is then passed directly to MySQL's FROM_UNIXTIME() function:

      INSERT INTO ... VALUES (FROM_UNIXTIME(:timestamp)) 

3. Manually manipulate the string into a valid literal:

    $parts = explode('-', $_POST['date']); $date = "$parts[2]-$parts[1]-$parts[0]"; 

Answer 2

Use jQuery UI's altFormat option to have datepicker send the date to the server in an alternate format. This requires an ID of an alternate field in the form, which can be hidden.

$( ".datepicker" ).datepicker({
    dateFormat: 'dd-mm-yy',
    altField: '#actualDate',
    altFormat: 'yy-mm-dd'
});

This frees you to show one date format to the user while sending the equivalent date in a date format compatible with MySQL.

Answer 3

// dd-mm-yy to yy-mm-dd
$date = explode('-',$_POST['date']);
$mysqlDate = $date[2].'-'.$date[1].'-'.$date[0];