1. php网址 url拼接
$_SERVER['QUERY_STRING'] 获取获取当前url的所有querystring
parse_str and http_build_query:parse_str($queryString, $params);
foreach ($params as $key => $term)
$these = array_diff_assoc($params, array($key => $term));
printf("%s
\n", http_build_query($these), $term);
Example output:
参考 http://stackoverflow.com/questions/8609163/php-retrieve-keys-from-query-string-for-each-key-create-url-removing-that-key
2.php 获取当前url
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$url_this = "http://".$_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF'];
3.strtotime("-1 week"), strtotime("-n days");可以很方便的获取当前日期的前n天、周、月的时间戳
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