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how display and edit date format using PHP and MySQL

Posted on 2010-11-19
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Last Modified: 2012-05-10
I need to display(list) and edit(update) the birth date on a web page using PHP connected to a MySQL database.

All is working ok, that is ,  I connect to the database from a web page but it displays the date as yyyy-mm-dd instead of dd-mm-yyyy (see userinfo.php in the code box).

Also, I can  update the date but only if I type it as yyyy-mm-dd into the web form (see useredit.php in the code box).

What do I need to do?
useredit.php for html to edit(update)

<tr>
<td>Birth Date</td>
<td><input type="text" name="birth_date" maxlength="50" value="
<?
if($form->value("birth_date") == ""){
   echo $session->userinfo['birth_date'];
}else{
   echo $form->value("birth_date");
}
?>">
</td>
<td><? echo $form->error("birth_date"); ?></td>
</tr>

userinfo.php for html to display(list)

*/birth_date */
echo "<b>Birth Date</b> ".$reg_user_info['birth_date']."<br>";

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Question by:bianchef9
6 Comments
 
LVL 3

Expert Comment

by:PorterGraphics
ID: 34175302
You can use date_format() to format the date.

PHP - date_format()
0
 
LVL 8

Expert Comment

by:wolfgang_93
ID: 34175316
I presume that somewhere in your code you have a SQL command passed
to MySQL to fetch the values into the form, for example:

  select ...,birth_date,... from ....;

It would fetch any date field in the default MySQL date format of yyyy-mm-dd.

To change the default date display, you can apply the date-format SQL function
to the birth_date field. For example:

  select ...,date-format(xx,'%m-%d-%Y'),... from ...
0
 
LVL 84

Expert Comment

by:Dave Baldwin
ID: 34175339
'yyyy-mm-dd' is the standard format for dates in part because it is a 'sortable' format.  This page http://us3.php.net/manual/en/function.date.php gives a lot of info about the PHP 'date' function.  It can be used with the 'mktime' function http://us3.php.net/manual/en/function.mktime.php to re-arrange dates.
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Author Comment

by:bianchef9
ID: 34175434
wolfgang_93

I have SQL queries for several date fields as
SELECT ..., b_date, e_date, r_date, x_date, ... from

so do I need to use date-format for each date fields ?
is the syntax as date-format(b_date,'%m-$d-%Y') ?

also, how do use date-format for same several fields with INSERT and UPDATE queries?
0
 
LVL 8

Accepted Solution

by:
wolfgang_93 earned 1000 total points
ID: 34175713
Yes, you would need to do the same thing for each date field that you are using
on the form.

To convert date format in an insert or update, you are generally converting
from string to a different date format, so you can use the MySQL str_to_date
function.

SQL example:
insert into kkk(xx) values(str_to_date('10-23-2010','%m-%d-%Y'));

PHP example is something like this I think:
$cmd="insert into ... values(... str_to_date('".$reg_user_info['birth_date']."','%m-%d-%Y')) ...";
0
 

Author Closing Comment

by:bianchef9
ID: 34180871
I used your suggestion for the following code which worked to display the human date from the server date.

/* Convert MySQL yyyy-mm-dd to PHP dd-mm-yyyy table contents */
$expiration_date=date("m/d/Y",strtotime($expiration_date));
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