Saving an Array into Session

I have something like:

<table>
	 <tr>
     <td><input type="checkbox" name="day[]" value="Saturday" />Satur</td>
	 
     <td><input type="checkbox" name="day[]" value="Sunday" />Sun</td>
     
     <td><input type="checkbox" name="day[]" value="Monday" />Mon</td>
     
     <td><input type="checkbox" name="day[]" value="Tuesday" />Tues</td>
    
     <td><input type="checkbox" name="day[]" value="Wednesday" />Wednes</td>
     
     <td><input type="checkbox" name="day[]" value="Thursday" />Thurs</td>
     
     <td><input type="checkbox" name="day[]" value="Friday" />Fri</td>
	 </tr>
	 </table>

PHP:

and I want to save day[] in a session and reuse it again how can I do that?

Thank you in advance

 

I did somthing like

$day        =$_POST['day'];

PHP:

then I saved $day in a session

$_SESSION['day'] = $day        ; // store session data

PHP:

then I want to display days in SESSION

so I wrote:

foreach($_SESSION['day'] as $day){
echo "Session day: ".$day."<br>";
}

PHP:

and it gives me the following

Invalid argument supplied for foreach()

 

I'm not sure the reason you can't directly assign your $_POST array to a $_SESSION array and there might be a function to make it more effecient, but this worked for me:

$_SESSION['day'];
for ($i=0; $i<count($_POST['day']); ++$i) $_SESSION['day'][$i]=$_POST['day'][$i];

PHP:

 

Hi, check examples for function serialize and unserialize too.
Regards

 

Yes I am calling

session_start(); 

PHP:

in the start of the file

and day is an array as shown below

<table> 
     <tr> 
     <td><input type="checkbox" name="day[]" value="Saturday" />Satur</td> 
      
     <td><input type="checkbox" name="day[]" value="Sunday" />Sun</td> 
      
     <td><input type="checkbox" name="day[]" value="Monday" />Mon</td> 
      
     <td><input type="checkbox" name="day[]" value="Tuesday" />Tues</td> 
     
     <td><input type="checkbox" name="day[]" value="Wednesday" />Wednes</td> 
      
     <td><input type="checkbox" name="day[]" value="Thursday" />Thurs</td> 
      
     <td><input type="checkbox" name="day[]" value="Friday" />Fri</td> 
     </tr> 
     </table>  

PHP:

and I get it from the POST method and save it

 $day        =$_POST['day'];  

PHP:

and the save it to a SESSION

 $_SESSION['day'] = $day        ; // store session data  

PHP:

then I want to display what's saved in SESSION and I don't know how?

Can anyone tell me how?

 

This code will get into the session:

$_SESSION['day'];
for ($i=0; $i<count($_POST['day']); ++$i) $_SESSION['day'][$i]=$_POST['day'][$i];

PHP:

And this code will get it out:

for ($i=0; $i<count($_SESSION['day']; ++$i) echo "Session day: ".$_SESSION['day'][$i]."<br>";

PHP:

 

I have created 3 pages:

first page

called combobox.php

<?php
echo
	'<form name="combo" method="post" action="post_days.php">
	<table> 
    <tr> 
    <td><input type="checkbox" name="day[]" value="Saturday" />Satur</td> 
      
    <td><input type="checkbox" name="day[]" value="Sunday" />Sun</td> 
      
    <td><input type="checkbox" name="day[]" value="Monday" />Mon</td> 
      
    <td><input type="checkbox" name="day[]" value="Tuesday" />Tues</td> 
     
    <td><input type="checkbox" name="day[]" value="Wednesday" />Wednes</td> 
      
    <td><input type="checkbox" name="day[]" value="Thursday" />Thurs</td> 
      
    <td><input type="checkbox" name="day[]" value="Friday" />Fri</td> 
    </tr> 
	<tr>
	<input type="submit" />
	</tr>
    </table>
	</form>
	';
	 
?>

PHP:

second page:

post_days.php

<?php
	session_start();
	
	//get into session
	for ($i=0; $i<count($_POST['day']); $i++)
	{
		echo "POST Day... ".$_POST['day'][$i]."<br>";
		$_SESSION['day'][$i]=$_POST['day'][$i];
		echo "For 1... Session Day: ".$_SESSION['day'][$i]."<br>";
	}
	
	//$_SESSION['day'] = $_POST['day'];
	//get it out
	for ($i=0; $i<count($_POST['day']); $i++){
		echo "For 2... Session day: ".$_SESSION['day'][$i]."<br>";
	}
	
	echo
	'<form method="post" action="insert_days.php">
	<input type="submit" />
	</form>';
?>

PHP:

and the output is

POST Day... Saturday
For 1... Session Day: S
POST Day... Wednesday
For 1... Session Day: W
For 2... Session day: S
For 2... Session day: W

I don't know why it's saved as single letter I want to know how to solve this problem

 

Look at what you're inserting and echoing: $_POST['day'][$i]

That will show the $i character in $_POST['day'] which is absolutely wrong.

You can't run through that correctly in a for-loop. Use foreach instead.

foreach ($_POST['day'] as &$value) {
    echo $value."<br />";
}

Code (markup):

 

check what's going in the session:

<?php echo '<pre>'; print_r($_SESSION); ?>

Your first foreach error was because the data $_SESSION['day'] is not an array type.
Use this code:

<?php
session_start();
if(isset($_POST[submit])){ $_SESSION['d']= $_POST['d']; }

//echo '<pre>'; print_r($_SESSION);

//show session data
foreach($_SESSION['d'] as $v){ echo $v.'<br>'; }

print '
<form action="" method="post">
<input type="checkbox" name="d[]" value="sunday"> Sunday <br>
<input type="checkbox" name="d[]" value="monday"> monday <br>
<input type="checkbox" name="d[]" value="tuesday"> Tuesday<br>
<input type="submit" name="submit">
</form>
';
?>

Code (markup):