因此,我正在建立一个网站的工作(经理请求)建设的统计部分。我有一个运行“24小时”图的代码。该图的代码,我的作品完美,但我有麻烦越来越MySQL的正确的代码拉出根据天而不是小时使用SQL和php为网站使用创建每周和每月图表
数据 下面function get_hourly_graph() {
// First lets create a daily graph for experiment then we can build on that
date_default_timezone_set('Australia/Sydney');
$current_hour = date('H');
// SQL Query to get data we want
$sql = mysql_query("SELECT hour(time_hit) AS hour , count(hour(time_hit)) AS hits FROM hits WHERE time_hit > now() - INTERVAL 1 DAY GROUP BY hour(time_hit);")
or die(mysql_error());
// Remove an hour off current time for array and the loop that will put the data into the array
$array_hour = $current_hour - 1;
// Add a 0 if the timer is under 10. just so this is compatable with the SQL data
if ($array_hour < 10) {
$array_hour = 0 . $array_hour;
}
// initialise the array so we can set up the indexes and data in the next couple of loops
$hit_data = array();
// Work back the clock 24 hours and create the array indexes
for ($i = 0; $i < 24; $i++) {
$new_hour = $current_hour;
if ($new_hour < 1) {
$new_hour = 24;
$hit_data[$new_hour] = "0";
}
else {
$hit_data[$new_hour] = "0";
}
$current_hour = $new_hour - 1;
}
// Loop through the rest of the array and replace null with 0s
while ($results = mysql_fetch_array($sql, MYSQL_ASSOC)) {
foreach ($hit_data as $hour => $hits) {
if ($results['hour'] == $hour) {
$hit_data[$hour] = $results['hits'];
}
}
}
$hit_data = array_reverse($hit_data, true);
// Generate the graph for the 24 hour data
generate_graph ($hit_data, '24 Hour Report', 'hourly_graph.png', 'Time (Hours)', 'Hits');
}
每小时代码“命中”表基本上是3字段'hit_id''ip_address''timestamp'在'YYYY-MM-DD hh:mm:ss'= 2011-08-04 12:40:34“
如何更改sql代码下面用天而不是小时来工作?
请解释一下 –