cf
http://infosthetics.com/archives/2006/02/flickrmixr_xml_rss_feed_visualization.html
code source pour une image :
<?php
/*
mixr160.php
genere une image à partir d'un appel URI type : mixr160.php?tag=test
*/
if($_GET['tag']) {
if( preg_match("/^[a-zA-Z0-9]*$/", $_GET['tag']) ) {
$tag = $_GET['tag'];
} else {
$tag = "vacation";
}
} else {
$tag = "vacation";
}
$im_w = 160; //largeur image
$im_h = 80; //hauteur image
$im = imagecreatetruecolor($im_w , $im_h );
$bgc = imagecolorallocate($im, 0, 0, 0);
$tc = imagecolorallocate($im, 255, 255, 255);
imagefilledrectangle($im, 0, 0, $im_w , $im_h , $bgc);
$ty = 5;
//$ty += 10;
$store = FALSE;
$cur_tag = "";
$cur_data = "";
$n = 0;
$error = "";
$cur_item = array('titre'=>'', 'url'=>'', 'contenu'=>'','dat'=>'');
function startElement($parser, $name, $attribs) {
global $cur_tag, $cur_data, $cur_item, $store, $n, $tc, $im, $im_w, $im_h, $ty;
if($name == "MEDIA:THUMBNAIL" && $n<5) {
$url = $attribs['URL'];
$ws = $attribs['WIDTH'];
$hs = $attribs['HEIGHT'];
//if($ws<=640 && $hs<=480) {
if($ims = @imagecreatefromjpeg($url)) {
$imtemp = imagecreatetruecolor($im_w , $im_h );
imagecopyresampled ($imtemp, $ims, 0, 0, 0, 0, $im_w, $im_h, $ws, $hs);
imagecopymerge( $im, $imtemp, 0, 0, 0, 0, $im_w, $im_h, 50);//$im_w
$n++;
imagedestroy($imtemp);
imagedestroy($ims);
} else {
//imagestring($im, 1, 5, $ty, "Error loading $url", $tc);
//$ty +=10;
}
//} else {
//imagestring($im, 1, 5, $ty, "$ws $hs", $tc);
//$ty += 10;
//}
}
}
function endElement($parser, $name) {
global $cur_item, $store;
}
function characterData ($parser, $data) {
global $cur_tag, $cur_item, $store;
}
$xml_file = "http://www.flickr.com/services/feeds/photos_public.gne?tags=".$_GET['tag']."&format=rss_200";
$encoding = "UTF-8";
if($fp = fopen($xml_file, "r")) {
//echo "<a href=\"$xml_file\">RSS</a><br />";
$xml_parser = xml_parser_create("UTF-8");
xml_set_element_handler($xml_parser, 'startElement','endElement');
xml_set_character_data_handler($xml_parser, 'characterData');
while ($data = fread($fp, 4096)) {
if($encoding == "UTF-8") {
//$data = utf8_decode($data);
}
if(!xml_parse($xml_parser, $data, FALSE)) {
$e = xml_get_error_code ( $xml_parser );
$error .= xml_error_string($e)."<br>";
}
}
fclose($fp);
xml_parser_free ($xml_parser);
} else {
$error .= " erreur";
}
if($error == "") {
$s1 = "DATAPAINTING@FLICKR ";
$s2 = strtoupper($tag);///." - " . date("Y-m-d H:i:s"). "";
//imagestring($im, 1, 1, 1, $s1, $tc);
imagestring($im, 1, 4, 70, $s2, $tc);
Header("Content-type: image/jpeg");
imagejpeg($im,'',100);
} else {
echo $error;
}
imagedestroy($im);
?>
