3
我有使用PHP的数组的输出如下。我需要做两件事...首先,我需要对数组进行排序,以便按照最近的日期进行打印。我不能使用简单的排序方式,因为日期的输出格式为mm/dd/yyyy(而不是常规时间戳)...排序多维数组(PHP) - 日期并发症和计数
然后我需要计算每年有多少行。 因此,在下面的例子中,我需要知道,有...从2010年
- 2项从2011
- 1项
- 2项从2012
- 停止计数时,有没有更多的行
自今年不是从日期数字的其余部分分离,这也是复杂的事情......
Array
(
[0] => Array
(
[racer_date] => 11/15/2010
[racer_race] => Test Row 4
[racer_event] => 321
[racer_time] => 16
[racer_place] => 12
[racer_medal] => 1
)
[1] => Array
(
[racer_date] => 7/15/2010
[racer_race] => Test Row 3
[racer_event] => 123
[racer_time] => 14
[racer_place] => 6
[racer_medal] => 0
)
[2] => Array
(
[racer_date] => 7/28/2011
[racer_race] => Test Row
[racer_event] => 123
[racer_time] => 10
[racer_place] => 2
[racer_medal] => 2
)
[3] => Array
(
[racer_date] => 10/9/2011
[racer_race] => Test Row 2
[racer_event] => 321
[racer_time] => 12
[racer_place] => 3
[racer_medal] => 3
)
[4] => Array
(
[racer_date] => 10/3/2012
[racer_race] => World Indoor Championships (final)
[racer_event] => 400m
[racer_time] => 50.79
[racer_place] => 1
[racer_medal] => 1
)
)