Checkbox and text box array

[Gokul]

Hello all php people. Many apologies if this has been asked before (which it most probably has) but I've been struggling with this for a while now and would greatly appreciate any help. Tried searching google and forums but cannot seem to find much info, and what I have found didn't make much sense to me.

For this example, I have created a simple form with checkboxes and text boxes show below: -

 

<?php

echo "<form action=\"$_SERVER[php_SELF]\" method=\"POST\">\r";

for($i=0;$i<=5;$i++)
{
	echo "<input type=\"checkbox\" name=\"checked[]\" value=\"$i\" />\r
Notes <input type=\"textbox\" name=\"notes[]\" size=\"50\" /><hr />\r";
}

echo "<input type=\"Submit\" name=\"submit\" value=\"Submit\" />\r
</form>";

$checked = $_POST['checked'];
$total = count($checked);

if(isset($_POST['submit']))
{
	for($j=0;$j<=$total;$j++)
		{
			echo "$checked[$j] – ".$_POST['notes'][$j]."<br />";
		}
}

?>

 

I just want to simply loop through the form and get the value of the text box only when its checkbox is checked. The for loop I have written is me trying to experiment with retrieving the checkbox value along with its relevant text box value but am not having much luck.

 

Thanks in advance for this.

[teamatomic]

Something like this is probably a bit more accurate than what you did. Note the foreach to loop through the checkbox array and using the value to get its note. That way you only show a note whose corresponding box was checked and not all of them.

 

for($i=1;$i<=5;$i++)
{
echo '<form action="" method="POST">';
echo "<input type=\"checkbox\" name=\"box[$i]\" value=\"$i\" />\r
Notes <input type=\"textbox\" name=\"note[$i]\" size=\"50\" /><hr />\r";
}
echo "<input type=\"Submit\" name=\"submit\" value=\"Submit\" />\r
</form>";

$box = $_POST['box'];
$note = $_POST['note'];
$total = count($box);

if(isset($_POST['submit']))
{
foreach ($box as $checked)
{
echo "{$note[$checked]}<br>";
}
}

 

 

HTH

Tetamatomic

[Gokul]

Hi Teamatomic. Many thanks for your reply and yes it nearly solves the problem however, a warning message appears when the submit button is pressed and no checkboxes are checked.

I don't think there is anyway to suppress warning messages for the foreach loop according to the PHP.net manual.

 

[Wolphie]

Of course there is, first check that it's an array you're trying to loop using

 

http://php.net/manual/en/function.is-array.php

[Gokul]

Hi Wolhpie. Ahh that's brilliant. So you're saying to check and see if the checkbox is an array and if it is then execute the rest of the code. Many thanks to both for your help as I was stuck for ages.

[Gokul]

Hello again. I forgot to mention that I need to get the value of the checkbox with reference to the text box.

 

This is because is need to update the database where the ID equals the value of the checkbox.

[Gokul]

Sorry, I was hasty in not figuring it out myself. Got it now and this is the code

 

<?php
echo '<form action="" method="POST">';
for($i=1;$i<=5;$i++)
{

	echo "<input type=\"checkbox\" name=\"box[$i]\" value=\"$i\" />\r
	Notes <input type=\"textbox\" name=\"note[$i]\" size=\"50\" /><hr />\r";
}

echo "<input type=\"Submit\" name=\"submit\" value=\"Submit\" />\r
</form>";

$box = $_POST['box'];
$note = $_POST['note'];
$total = count($box);

if(isset($_POST['submit']) && is_array($box))
{
	foreach ($box as $checked)
		{
			echo "Value $checked: $note[$checked]<br>";
		}
}

?>

 

Many thanks.....