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NASA "Image of the Day" PHP Block
Status: offline
racooper
Forum User
Junior
Registered: 03/13/04
Posts: 24
Below is some code I hacked on to get a display of NASA's "Image of the Day" into a front page block. It's just a phpblock called with "phpblock_showrssimage". The feed URL is hard-coded, as is the thumbnail image width (at 160). If anyone else finds it useful, great!
// original source for rss code from http://forums.digitalpoint.com/showthread.php?t=7354
// Hacked to render image instead of item section
// by RACooper (rac at noidea dot us) 05 SEP 2005
function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
$tag = $name;
} elseif ($name == "IMAGE") {
$insideitem = true;
}
}
function endElement($parser, $name) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($name == "IMAGE") {
$text = "<a href="".trim($link)."">".htmlspecialchars(trim($title))."<BR>n";
$text .= "<img src="".trim($url)."" border="0" width="160"></a>";
$text .= "<BR>n".htmlspecialchars(trim($description));
$title = "";
$description = "";
$link = "";
$url = "";
$insideitem = false;
}
}
function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
switch ($tag) {
case "DESCRIPTION":
$description .= $data;
break;
case "TITLE":
$title .= $data;
break;
case "URL":
$url .= $data;
break;
case "LINK":
$link .= $data;
break;
}
}
}
function phpblock_showrssimage() {
global $text;
$insideitem = false;
$tag = "";
$title = "";
$description = "";
$link = "";
$url = "";
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://www.nasa.gov/rss/image_of_the_day.rss","r")
or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
xml_parse($xml_parser, $data, feof($fp))
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);
return $text;
}
Text Formatted Code
// Block functions designed to show NASA "image of the day"// original source for rss code from http://forums.digitalpoint.com/showthread.php?t=7354
// Hacked to render image instead of item section
// by RACooper (rac at noidea dot us) 05 SEP 2005
function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
$tag = $name;
} elseif ($name == "IMAGE") {
$insideitem = true;
}
}
function endElement($parser, $name) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($name == "IMAGE") {
$text = "<a href="".trim($link)."">".htmlspecialchars(trim($title))."<BR>n";
$text .= "<img src="".trim($url)."" border="0" width="160"></a>";
$text .= "<BR>n".htmlspecialchars(trim($description));
$title = "";
$description = "";
$link = "";
$url = "";
$insideitem = false;
}
}
function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
switch ($tag) {
case "DESCRIPTION":
$description .= $data;
break;
case "TITLE":
$title .= $data;
break;
case "URL":
$url .= $data;
break;
case "LINK":
$link .= $data;
break;
}
}
}
function phpblock_showrssimage() {
global $text;
$insideitem = false;
$tag = "";
$title = "";
$description = "";
$link = "";
$url = "";
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://www.nasa.gov/rss/image_of_the_day.rss","r")
or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
xml_parse($xml_parser, $data, feof($fp))
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);
return $text;
}
14
12
Quote
Status: offline
geKow
Forum User
Full Member
Registered: 01/12/03
Posts: 445
ok, let's compare it with this block 
It didn't work for me so well
My server didn't like the double quotes ("") you used, so I replaced them with single quotes (") and (') pairs.
And finally I understand the difference to the other block
It didn't work for me so well
My server didn't like the double quotes ("") you used, so I replaced them with single quotes (") and (') pairs.
And finally I understand the difference to the other block
11
11
Quote
Status: offline
suprsidr
Forum User
Full Member
Registered: 12/29/04
Posts: 555
Location:Champaign, Illinois
I like it 
Now we have Astronomy pic o day
and
Nasa pic o day
a little problem in lines 19 and 20 with the quotes, her is the fixed code:
// original source for rss code from http://forums.digitalpoint.com/showthread.php?t=7354
// Hacked to render image instead of item section
// by RACooper (rac at noidea dot us) 05 SEP 2005
function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
$tag = $name;
} elseif ($name == "IMAGE") {
$insideitem = true;
}
}
function endElement($parser, $name) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($name == "IMAGE") {
$text = "<center><a href=".trim($link).">".htmlspecialchars(trim($title))."<BR>n";
$text .= "<img src=".trim($url)." border='0' width='160'></a></center>";
$text .= "<BR>n".htmlspecialchars(trim($description));
$title = "";
$description = "";
$link = "";
$url = "";
$insideitem = false;
}
}
function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
switch ($tag) {
case "DESCRIPTION":
$description .= $data;
break;
case "TITLE":
$title .= $data;
break;
case "URL":
$url .= $data;
break;
case "LINK":
$link .= $data;
break;
}
}
}
function phpblock_showrssimage() {
global $text;
$insideitem = false;
$tag = "";
$title = "";
$description = "";
$link = "";
$url = "";
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://www.nasa.gov/rss/image_of_the_day.rss","r")
or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
xml_parse($xml_parser, $data, feof($fp))
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);
return $text;
}
FlashYourWeb and Your Gallery with the E2 XML Media Player for Gallery2 - http://www.flashyourweb.com
Now we have Astronomy pic o day
and
Nasa pic o day
a little problem in lines 19 and 20 with the quotes, her is the fixed code:
Text Formatted Code
// Block functions designed to show NASA "image of the day"// original source for rss code from http://forums.digitalpoint.com/showthread.php?t=7354
// Hacked to render image instead of item section
// by RACooper (rac at noidea dot us) 05 SEP 2005
function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
$tag = $name;
} elseif ($name == "IMAGE") {
$insideitem = true;
}
}
function endElement($parser, $name) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($name == "IMAGE") {
$text = "<center><a href=".trim($link).">".htmlspecialchars(trim($title))."<BR>n";
$text .= "<img src=".trim($url)." border='0' width='160'></a></center>";
$text .= "<BR>n".htmlspecialchars(trim($description));
$title = "";
$description = "";
$link = "";
$url = "";
$insideitem = false;
}
}
function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
switch ($tag) {
case "DESCRIPTION":
$description .= $data;
break;
case "TITLE":
$title .= $data;
break;
case "URL":
$url .= $data;
break;
case "LINK":
$link .= $data;
break;
}
}
}
function phpblock_showrssimage() {
global $text;
$insideitem = false;
$tag = "";
$title = "";
$description = "";
$link = "";
$url = "";
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://www.nasa.gov/rss/image_of_the_day.rss","r")
or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
xml_parse($xml_parser, $data, feof($fp))
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);
return $text;
}
FlashYourWeb and Your Gallery with the E2 XML Media Player for Gallery2 - http://www.flashyourweb.com
28
9
Quote
Status: offline
racooper
Forum User
Junior
Registered: 03/13/04
Posts: 24
dadblamed Forum processor stripped the backslashes out. I use doublequotes so that carriage returns (backslash-n) can be used (singlequotes don't render them).
Let's try it again (without having to do any edits to the post this time
// Block functions designed to show NASA "image of the day"
// original source for rss code from http://forums.digitalpoint.com/showthread.php?t=7354
// Hacked to render image instead of item section
// by RACooper (rac at noidea dot us) 05 SEP 2005
function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
$tag = $name;
} elseif ($name == "IMAGE") {
$insideitem = true;
}
}
function endElement($parser, $name) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($name == "IMAGE") {
$text = "<a href=\"".trim($link)."\">".htmlspecialchars(trim($title))."<BR>\n";
$text .= "<img src=\"".trim($url)."\" border=\"0\" width=\"160\"></a>";
$text .= "<BR>\n".htmlspecialchars(trim($description));
$title = "";
$description = "";
$link = "";
$url = "";
$insideitem = false;
}
}
function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
switch ($tag) {
case "DESCRIPTION":
$description .= $data;
break;
case "TITLE":
$title .= $data;
break;
case "URL":
$url .= $data;
break;
case "LINK":
$link .= $data;
break;
}
}
}
function phpblock_showrssimage() {
global $text;
$insideitem = false;
$tag = "";
$title = "";
$description = "";
$link = "";
$url = "";
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://www.nasa.gov/rss/image_of_the_day.rss","r")
or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
xml_parse($xml_parser, $data, feof($fp))
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);
return $text;
}
Let's try it again (without having to do any edits to the post this time
Text Formatted Code
// Block functions designed to show NASA "image of the day"
// original source for rss code from http://forums.digitalpoint.com/showthread.php?t=7354
// Hacked to render image instead of item section
// by RACooper (rac at noidea dot us) 05 SEP 2005
function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
$tag = $name;
} elseif ($name == "IMAGE") {
$insideitem = true;
}
}
function endElement($parser, $name) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($name == "IMAGE") {
$text = "<a href=\"".trim($link)."\">".htmlspecialchars(trim($title))."<BR>\n";
$text .= "<img src=\"".trim($url)."\" border=\"0\" width=\"160\"></a>";
$text .= "<BR>\n".htmlspecialchars(trim($description));
$title = "";
$description = "";
$link = "";
$url = "";
$insideitem = false;
}
}
function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $url, $text;
if ($insideitem) {
switch ($tag) {
case "DESCRIPTION":
$description .= $data;
break;
case "TITLE":
$title .= $data;
break;
case "URL":
$url .= $data;
break;
case "LINK":
$link .= $data;
break;
}
}
}
function phpblock_showrssimage() {
global $text;
$insideitem = false;
$tag = "";
$title = "";
$description = "";
$link = "";
$url = "";
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
$fp = fopen("http://www.nasa.gov/rss/image_of_the_day.rss","r")
or die("Error reading RSS data.");
while ($data = fread($fp, 4096))
xml_parse($xml_parser, $data, feof($fp))
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
fclose($fp);
xml_parser_free($xml_parser);
return $text;
}
14
11
Quote
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