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How to pass values of a variable to another page

Hi,

I have a calendar whose each date is a clickable button (image1.jpg). The code that I have used for to present each date as a button is mentioned below, which is placed within a while loop so that every date is a displayed.

echo "<td";
if($day==$day_num){
     echo " bgcolor='yellow'"; //highlight TODAY in yellow
     echo "><form action='show.php' method='post'><input type='submit' name='$datetime' value='$day'></form></td>";
}

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The variable $datetime consists of the value that is generate by mktime function in PHP. Uptill here everything is fine.

Now when I click a particular date, I want to display the tasks for that date. I want to select the tasks based on the value that is passed by $datetime on another page.

How to achieve it? I hope you got my query. Kindly let me know if you require anymore input from side.

Thanks in advance.
image1.jpg

Tom Beck

If you are only passing one value to show.php with each date click, then on show.php you could use this to retrieve the day number.

reset($_POST);
$key = key($_POST); //$key will be the input name ($datetime)
echo $_POST[$key]; //the day number

Ray Paseur

It appears that you might be new to PHP; that is hardly a sin -- we were all new to the language once. Your question is full of multi-layer issues that require some background in computer science. Here are some places to start your learning adventures.
https://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_11769-And-by-the-way-I-am-new-to-PHP.html

There is information on date/time processing in this article.
https://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_201-Handling-date-and-time-in-PHP-and-MySQL.html

There is information in SQL data base work in this article.
https://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/PHP_Databases/A_11177-PHP-MySQL-Deprecated-as-of-PHP-5-5-0.html

The most important advice I can offer is, "Don't push yourself!" It takes time to learn this material. Choose challenges that are interesting and rewarding and don't be in too much of a hurry. Build a teaching library from you challenges and solutions. You'll get there in less time than you think it might take!

Vipin Kumar

ASKER

It appears that you might be new to PHP; that is hardly a sin -- we were all new to the language once. Your question is full of multi-layer issues that require some background in computer science.

I am not new to PHP, I have read books and learnt about PHP, would say not as much you must have done and you know about the language. But I guess instead of making fun of others I would suggest that you provide help, because education is for sharing but not to keep it to yourself.
My question is not of multi layer questions because I am not using any database as of now within application that I am building. My simple question is how do I pass a button's value to the next page.

ASKER CERTIFIED SOLUTION

Dave Baldwin

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Tom Beck

Set up the while loop so the output looks like this. No need for a new form tag for every day.

<form action='show.php' method='post'>
<table border="1" cellpadding="6">
<tr>
<td><button name='2014-07-01' value='07'>7</button></td>
<td><button name='2014-08-01' value='08'>8</button></td>
<td><button name='2014-09-01' value='09'>9</button></td>
<td><button name='2014-10-01' value='10'>10</button></td>
</tr>
</table>
</form>

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(Convert the datetime to a string if it's not already)

//echo the form tag and table start tags, insert rows as needed
echo "<td";
if($day==$day_num){
     echo " bgcolor='yellow'"; //highlight TODAY in yellow
     echo "><button name='$datetime' value='$day'>$day</button></td></form></td>";
}
//close the table and form

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At show.php retrieve the value of the clicked date as I have demonstrated in my first post.