PHP實(shí)現(xiàn)數(shù)據(jù)庫統(tǒng)計(jì)時(shí)間戳按天分組輸出數(shù)據(jù)的方法

create table table_name(id int primary key,register_time int(10));

/* 查詢2015-12-01 至 2015-12-14 */
// 開始的時(shí)間戳
$startUnix = 1448899200; // 2015-12-01 00:00:00
// 結(jié)束的時(shí)間戳
$endUnix = 1450108800; // 2015-12-15 00:00:00
for($i = $startUnix; $i  $endUnix; $i += 86400){ // 86400為1天的秒數(shù)
 // 查詢
 $sql = 'select count(*) from table_name where register_time>= '.$i.' and register_time  '.$i + 86400;
 // 執(zhí)行查詢
}

/* 查詢2015-12-01 至 2015-12-14 */
// 開始的時(shí)間戳
$startUnix = 1448899200; // 2015-12-01 00:00:00
// 結(jié)束的時(shí)間戳
$endUnix = 1450108800; // 2015-12-15 00:00:00
$sql = 'select count(id) as register_count, FROM_UNIXTIME(register_time, '%Y-%m-%d') as datetime from table_name where register_time>= '.$startUnix.' and register_time  '.$endUnix group by datetime;
// 執(zhí)行查詢
...