guidelines for using ' or "

[5rent]

I am trying to use an echo statement to output a hyperlink as a pop up window.

Below is my code:
<?php if $row[8]=='f'){end;}else{echo"<ahref='http://www.mapquest.com/maps/map.adp?city=$row[6]&state=$row[7]&address=$row[5]&country=us&zoom=8' target='myWindow'onclick='window.open('http://www.mapquest.com/maps/map.adp?city=$row[6]&state=$row[7]&address=$row[5]&country=us&zoom=8','myWindow','width=250,height=500,scrollbars=1,resizable=1');return false;'title='Address'>";}?>
<img src='mapquest.gif' width='115' height='15'>

The $row[x] are variables being read in from mysql.

I know the vars from mysql are availble because they will echo but the above code will not work???

Can someone help guide me as to how to use either ' or " properly in the above code? THANKS.

[devinemke]

<?php
if ($row[8] == 'f')
{
	end;
}
else
{
	$url = 'http://www.mapquest.com/maps/map.adp?city=' . $row[6] . '&state=' . $row[7] . '&address=' . $row[5] . '&country=us&zoom=8'; 
	echo '<a href="' . $url . '" target="myWindow" onclick="window.open(\'' . $url . '\',\'myWindow\',\'width=250,height=500,scrollbars=1,resizable=1\'); return false;" title="Address">';
}
?> 

<img src="mapquest.gif" width="115" height="15">

[Weedpacket]

Or:

<?php
$url = "http://www.mapquest.com/maps/map.adp?city=$row[6]&state=$row[7]&address=$row[5]&country=us&zoom=8";
?>
<a href="<?php echo $url?>" target="myWindow" onclick="window.open('<?php echo $url?>', 'myWindow', 'width=250, height=500, scrollbars=1, resizable=1'); return false;" title="Address">
<?php

Or:

<?php
$url = "http://www.mapquest.com/maps/map.adp?city=$row[6]&state=$row[7]&address=$row[5]&country=us&zoom=8";
echo <<<EOT
<a href="$url" target="myWindow" onclick="window.open('$url', 'myWindow', 'width=250, height=500, scrollbars=1, resizable=1'); return false;" title="Address">
EOT;

[Riddick]

Hi

If you use echo “ then inside you have to use ‘’ “ .
Example: <?php echo “ <a href=’link.php’>link</a> “ ?>
Or <?php echo “ <a href=\”link.php\”>link</a> “ ?>

I found it easier if all my code (php and html)is between <?php ?> tags I do it like this.

<?php
$display = ‘
// now you can use “”
<a href=”link.php”>link</a>
‘;
//some code ……….
$display .= ‘
<a href=”link.php”>link</a> “ ?>
//when using this method just remember if you want to display any variables it must look like this.
‘.$variable.’
echo “
$display
“;
// this way you don’t have to use ‘’ or \”\”, this is helpful if you have a lot of html code.
?>

[devinemke]

generally speaking, you should always use single quotes whenever possible as PHP does not need to parse for variable expansion:

// this is faster:
echo 'this string has a ' . $var . ' in it';

// than this:
echo "this string has a $var in it";

example 1 will execute a wee bit faster and, in my opinion, is easier to read.

[5rent]

Thanks everybody for the help. I will try the above and let you know how things turn out. Greatful.