XML output from PHP

I would like to produce the following xml document from PHP

<slideshow>
<photo url=“DO NOT DELETE ME” day= “6” month= “FEBRUARY” description=“Current Day Description” />
<photo url=“DO NOT DELETE ME” day= “7” month= “FEBRUARY” description=“Day 2 Description” />
<photo url=“DO NOT DELETE ME” day= “8” month= “FEBRUARY” description=“Day 3 Description” />
<photo url=“DO NOT DELETE ME” day= “9” month= “FEBRUARY” description=“Day 4 Description” />
<photo url=“DO NOT DELETE ME” day= “10” month= “FEBRUARY” description=“Day 5 Description” />
<photo url=“DO NOT DELETE ME” day= “11” month= “FEBRUARY” description=“Day 6 Description” />
<photo url=“DO NOT DELETE ME” day= “12” month= “FEBRUARY” description=“Day 7 Description” />
</slideshow>

Here is the PHP that I have

$xml_output = "<?xml version=“1.0”?>
";
$xml_output .= "<slideshow>
";

foreach($result as $row) {

$xml_output .= "		&lt;month =\"".$row['eventStartDate'] ."\" /&gt;

“;
$xml_output .= " <day =”".$row[‘eventEndDate’] ."" />
“;
$xml_output .= " <description =”".$row[‘eventSummary’] ."" />
";

 // Escaping illegal characters 
    $row['imagedesc'] = str_replace("&", "&amp;", $row['imagedesc']); 
    $row['imagedesc'] = str_replace("&lt;", "&lt;", $row['imagedesc']); 
    $row['imagedesc'] = str_replace("&gt;", "&gt;", $row['imagedesc']); 
    $row['imagedesc'] = str_replace("\"", "&quot;", $row['imagedesc']); 

}

$xml_output .= “<slideshow>”;

echo $xml_output;