我设计了一个漂亮的小网站，它使用phpflickr（PHP Flickr API）从flickr组中提取图片，然后根据该信息显示信息提取它的标签。
我的问题是我认为我有太多的循环，因此通过API对Flickr的查询太多，这显着减慢了加载过程。这是代码：
<?php
require_once("phpFlickr/phpFlickr.php");
$f = new phpFlickr("apicode","secretcode");
$f->auth("write");
$token = $f->auth_checkToken();
$photos = $f->groups_pools_getPhotos("groupcode", null, null, "description,tags");
$nsid = $token['user']['nsid'];
$voted = $_POST['voted'];
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="Keywords" content="Flickr, App" />
<meta name="Description" content="Flickr group rater" />
<title>My App</title>
<!--<link rel="shortcut icon" href="/media/images/favicon.ico" type="image/x-icon"/>-->
</head>
<body>
<?
if ($voted == null){
foreach ($photos['photo'] as $photo) {
$alreadyvoted = "false";
$tags = $f->tags_getListPhoto($photo['id']);
foreach($tags as $tagdata) {
if(is_array($tagdata)) {
foreach($tagdata as $author) {
if($author == $nsid) $alreadyvoted = "true";
}
}
}
if ($alreadyvoted == "false") {
echo "<div class=\"container\" style=\"border-width: 1px; border-style: solid; padding: 20px; margin-top: 20px; width: 1100px; height: 600px; margin-left: auto; margin-right: auto;\">";
echo "<div class=\"photo\" style=\"float: left;\">";
echo "<a href=\"http://www.flickr.com/photos/$photo[owner]/$photo[id]/in/pool-hbu\">";
echo "<img border='0' alt='$photo[title]' ".
"src=\"" . $f->buildPhotoURL($photo, "Medium 640") . "\" />";
echo "</a><div style=\"width: 500px;\"><p>$photo[description]</p></div></div>";
echo "<div style=\"width: 400px; float:right;\"><h2>$photo[title]</h2></div>";
echo "<div style=\"float: right; margin-left: 40px; margin-right: 40px; border: 1px solid; padding: 10px;\">";
echo "<form action=\"index.php\" method=\"post\">
<input type=\"hidden\" name=\"photoid\" value=\"$photo[id]\" />
<input type=\"hidden\" name=\"voted\" value=\"voted$photo[id]\" />
Tag:<br />
<input type=\"radio\" name=\"tag\" value=\"delete\" />Delete<br />
<input type=\"radio\" name=\"tag\" value=\"save\" />Save<br />
<br /><a href=\"http://www.flickr.com/photos/$photo[owner]/$photo[id]/lightbox/\">View Large</a><br />
<br />Comment: <br /><textarea cols=\"40\" rows=\"10\" name=\"comment\"></textarea><br />
<br /><input type=\"submit\" value=\"Submit\" /></form>";
echo "</div>";
echo "</div>";
echo "<br /><br />\n";
}
}
}
else if ($voted != null){
$photoid = $_POST['photoid'];
$totag = $_POST['tag'];
$tocomment = $_POST['comment'];
$tags = $f->tags_getListPhoto($photoid);
if (($totag == null) || ($tocomment == null)) die("Make sure you have both a tag and a comment selected");
else {
if($totag == "delete"){
$finaltag = "delete";
foreach ($tags as $row){
if (($row["raw"] == "delete") || ($row["raw"] == "delete1") || ($row["raw"] == "delete 1")) $finaltag = "delete2";
else if (($row["raw"] == "delete2") || ($row["raw"] == "Delete 2")) $finaltag = "delete3";
else if (($row["raw"] == "delete3") || ($row["raw"] == "Delete 3")) $finaltag = "delete4";
else if (($row["raw"] == "delete4") || ($row["raw"] == "Delete 4")) $finaltag = "delete5";
else if (($row["raw"] == "delete5") || ($row["raw"] == "Delete 5")) $finaltag = "delete6";
else if (($row["raw"] == "delete6") || ($row["raw"] == "Delete 6")) $finaltag = "delete7";
else if (($row["raw"] == "delete7") || ($row["raw"] == "Delete 7")) $finaltag = "delete8";
else if (($row["raw"] == "delete8") || ($row["raw"] == "Delete 8")) $finaltag = "delete9";
else if (($row["raw"] == "delete9") || ($row["raw"] == "Delete 9")) $finaltag = "delete10";
else if (($row["raw"] == "delete10") || ($row["raw"] == "Delete 10")) $finaltag = "delete11";
else if (($row["raw"] == "delete11") || ($row["raw"] == "Delete 11")) $finaltag = "delete12";
else if (($row["raw"] == "delete12") || ($row["raw"] == "Delete 12")) $finaltag = "delete13";
else if (($row["raw"] == "delete13") || ($row["raw"] == "Delete 13")) $finaltag = "delete14";
}
}
else if($totag == "save"){
$finaltag = "save";
foreach ($tags as $row){
if (($row["raw"] == "save") || ($row["raw"] == "save1") || ($row["raw"] == "save 1")) $finaltag = "save2";
else if (($row["raw"] == "save2") || ($row["raw"] == "Save 2")) $finaltag = "save3";
else if (($row["raw"] == "save3") || ($row["raw"] == "Save 3")) $finaltag = "save4";
else if (($row["raw"] == "save4") || ($row["raw"] == "Save 4")) $finaltag = "save5";
else if (($row["raw"] == "save5") || ($row["raw"] == "Save 5")) $finaltag = "save6";
else if (($row["raw"] == "save6") || ($row["raw"] == "Save 6")) $finaltag = "save7";
else if (($row["raw"] == "save7") || ($row["raw"] == "Save 7")) $finaltag = "save8";
else if (($row["raw"] == "save8") || ($row["raw"] == "Save 8")) $finaltag = "save9";
else if (($row["raw"] == "save9") || ($row["raw"] == "Save 9")) $finaltag = "save10";
else if (($row["raw"] == "save10") || ($row["raw"] == "Save 10")) $finaltag = "save11";
else if (($row["raw"] == "save11") || ($row["raw"] == "Save 11")) $finaltag = "save12";
else if (($row["raw"] == "save12") || ($row["raw"] == "Save 12")) $finaltag = "save13";
else if (($row["raw"] == "save13") || ($row["raw"] == "Save 13")) $finaltag = "save14";
}
}
else die("Something went wrong there, try again.");
$finalcomment = $tocomment."\n\n -Voted \"".$finaltag."\" (by the flickr rater app</a>)";
$f->photos_comments_addComment($photoid, $finalcomment);
$f->photos_addTags($photoid, $finaltag);
header("Refresh: 0;");
}
}
?>
</body>
</html>
答案 0 :(得分：0)
高速缓存。
例如，将该组中的照片列表缓存5分钟，然后将给定照片的标签缓存60分钟。 （标签经常变化吗？）
通过序列化数据和写入磁盘进行缓存的示例：
$cacheTTL = 300;
$cacheFile = 'photos.dat';
if (file_exists($cacheFile) && filemtime($cacheFile) > (time() - $cacheTTL)){
$photos = unserialize(file_get_contents($cacheFile));
}
else {
$photos = $f->groups_pools_getPhotos("groupcode", null, null, "description,tags");
file_put_contents($cacheFile,serialize($photos));
}