php IF inside HTML echo

jasonyoung

I'm echoing the HTML which makes a checkbox, how can I make it checked based on an IF inside the echo itself? It works fine if I code it HTML with a nested php line. This works:

<input name="ipnetcheck" type="checkbox"
onkeypress="return handleEnter(this, event)" id="ipnetcheck" 
value="1" <?php if ($ipnetcheck==1) echo "checked";?> >

Buuuut I need this to work based on the conditional test which precedes this echo:

echo "<label>IP<input type='checkbox' name='ipnetcheck' value='1' . if ($ipnetcheck==1) {checked}></label>";

This gets me all kinds of no bueno. It's a dymanic form and based on how you select check boxes, text fields appear. This works, too. I know this sounds like client-side stuff here but wait a second. Before I echo the HTML fields I'm querying SQL, so I have my vars. Then, when I echo the checkboxes I want them to be checked if the var returns 1 (I store checked boxes in SQL as a 1, unchecked as 0).

I'm stuck because I don't get doing an IF statement inside an echo.

Clown the code if you want, it's midnight and I'm throwing poop at the wall to see what sticks. HELP!!!

Piranha

I don't know if it is possible to do what you want. I would do it this way:

echo "<label>IP<input type='checkbox' name='ipnetcheck' value='1'"
if ($ipnetcheck==1) 
{
    echo "checked='checked'"
}
echo " /></label>";

As you see I have changed a few things as well. The correct command according to XML is checked='checked' and you should have a slash last in the input as well.

Weedpacket

The conditional operator ?: could be used for this....

jasonyoung

Weedpacket wrote:
The conditional operator ?: could be used for this....

I read up on this this and it seems like a very compact if/else conditional, but I don't see how I could implement it. I did it another way, and it works, just a bit clumsy. Can you offer an example or two on the proper way to use it and when it is appropriate as well.

From what I can tell, if it is set up as

e1 ? e2 : e3

then it would test e1 first. If it returns true, the result is the value of e2, else it uses the value of e3. Is this correct?

Thanks for all the help.

rajug

Can you do like this using varible?

	$ipnetcheck = 1;
	$str = "";
	$str = "<label>IP<input type='checkbox' name='ipnetcheck' value='1'";
	if ($ipnetcheck == 1){
		$str .= "checked";
	}
	$str .= "></label>"; 
	echo $str;

I think this make sense what you expect.

Tyree

echo '<label>IP<input type="checkbox" name="ipnetcheck" value="1"' .
($ipnetcheck==1)? 'checked="checked"':'') . 
'></label>';

inline conditionals rule! 😉

big_nerd

Here are Two Functions:

function selected($var, $val) {
	if ($var == $val) {
		echo " selected";
	} else if ($var == '' && $val == 'x') { // In order to dummy the initial selection to its default value for new tickets.
		echo " selected";
	}
}

function checked($var, $val) { // Used to compare values and put 'selected' if they hold true (see below)
	if ($var == $val) {
		echo " checked";
	}
}

// And to use:

 <option <?php selected($rc,'x'); ?>>Select</option>
 <option value="1" <?php selected($rc,'1'); ?>>CONCEALED DAMAGE</option>

// Etc Etc..

<input name="calltype" type="radio" value="1" <?php checked($calltype,'1'); ?>>

You could technically combine them into one function if needed.

Regards,

Michael (big.nerd)