retaining checkbox values

[c_pattle]

I have a form and on each input I set the value as the post variable of it's self.  I do this so that if the user submit the form and it has errors they haven't lost the data they have inputted.  For example

 

<input name="input1" type="text" value="<?php echo($_POST['input1']); ?>" />

 

This works fine for text field and textarea's but how do I retain the value of radio boxes and checkboxes?

[BlueSkyIS]

within each checkbox or radio tag

[code=php:0]
echo "<input type='checkbox' name='checked_value' value='$somevalue'";
if ($checked_value == $somevalue) {
    echo " checked='checked'";
}
echo " />";

[Pikachu2000]

Since checkboxes only show up in the $_POST array if they're actually checked, you can just check with isset.

 

<input type="checkbox" name="checkbox_name" value="true"<?php echo isset($_POST['checkbox_name']) ? ' checked="checked"' : ""; ?>>

[Oziam]

You have to use checked!

 

e.g

<input type=radio name=radio1 checked>

 

and

 

<input type=checkbox name=check1 checked>

 

and if you want to show a select option as selected you use "selected"

 

hope this helps!