Php 如果发现日期字符串介于两个日期之间，则返回“付款周期”开始（&U）；支付期结束。怎么用？
如果我在每个硬编码数组中手动键入每个月的每一天，则以下代码有效 然后在数组中循环查找匹配项，如果找到匹配项，则返回该数组的第一个索引和最后一个索引值。这些是稍后将用于mysql select查询的付款期开始和结束日期Php 如果发现日期字符串介于两个日期之间，则返回“付款周期”开始（&U）；支付期结束。怎么用？,php,datetime,Php,Datetime,如果我在每个硬编码数组中手动键入每个月的每一天，则以下代码有效 然后在数组中循环查找匹配项，如果找到匹配项，则返回该数组的第一个索引和最后一个索引值。这些是稍后将用于mysql select查询的付款期开始和结束日期 // MOUNTAIN DAYLIGHT SAVINGS TIME date_default_timezone_set('MST7MDT'); // = PHP Default TimeZone //print 'MOUNTAIN DAYLIGHT SAVINGS TIME';
// MOUNTAIN DAYLIGHT SAVINGS TIME
date_default_timezone_set('MST7MDT');
// = PHP Default TimeZone
//print 'MOUNTAIN DAYLIGHT SAVINGS TIME';
//print '<p>';
// = MySQL CURRDATE() in MySQL DATETIME Format.
$php_current_date = date('Y-m-d');
// 2019 Pay Periods - MONTHLY
$parent_array = array(
1 => array('2019-01-01','2019-01-31'),
2 => array('2019-02-01','2019-02-28'),
3 => array('2019-03-01','2019-03-31'),
4 => array('2019-04-01','2019-04-30'),
5 => array('2019-05-01','2019-05-31'),
6 => array('2019-06-01','2019-06-30'),
7 => array('2019-07-01','2019-07-31'),
8 => array('2019-08-01','2019-08-31'),
9 => array('2019-09-01','2019-09-30'),
10 => array('2019-10-01','2019-10-31'),
11 => array('2019-11-01','2019-11-30'),
12 => array('2019-12-01','2019-12-31'),
13 => array('2020-01-01','2020-01-31'),
14 => array('2020-02-01','2020-02-29'),
15 => array('2020-03-01','2020-03-31'),
16 => array('2020-04-01','2020-04-30'),
17 => array('2020-05-01','2020-05-31'),
18 => array('2020-06-01','2020-06-30'),
19 => array('2020-07-01','2020-07-31'),
20 => array('2020-08-01','2020-08-31'),
21 => array('2020-09-01','2020-09-30'),
22 => array('2020-10-01','2020-10-31'),
23 => array('2020-11-01','2020-11-30'),
24 => array('2020-12-01','2020-12-31')
);
$current_pay_period_start = '';
$current_pay_period_end = '';
// For each child Array of date Strings inside parent Array of arrays...
foreach($parent_array as $child_array){
// Speculate the variable name as $result_found while searching each child Array of date Strings
// for the Current date in *Mountain Daylight Savings Time
$result_found = in_array($php_current_date, $child_array);
// if we have a match...
if ($result_found) {
// GET LEFT-MOST index and assign it to a variable.
$current_pay_period_start = current($child_array);
// GET RIGHT-MOST index and assign it to another variable.
$current_pay_period_end = end($child_array);
// Add a day for mysql query logic...
// because mysql uses < instead of =< for comparison in the query the follows...
$current_pay_period_end = date('Y-m-d', strtotime($current_pay_period_end . ' + 1 days'));
/*
Following Works ONLY on direct access.
Debug Only.
Eg. localhost/folder/filename.php
*/
print 'Php Current Date: ' . $php_current_date;
print '<br>';
print 'Current Pay Period Start: ' . $current_pay_period_start;
print '<br>';
print 'Current Pay Period End: ' . $current_pay_period_end;
exit;
}
}
我为您编写了以下内容，用于比较数组中的两个日期。希望这会有帮助
$php_current_date = date('Y-m-d');
$parent_array = array(
1 => array('2019-01-01','2019-01-31'),
2 => array('2019-02-01','2019-02-28'),
3 => array('2019-03-01','2019-03-31'),
4 => array('2019-04-01','2019-04-30'),
5 => array('2019-05-01','2019-05-31'),
6 => array('2019-06-01','2019-06-30'),
7 => array('2019-07-01','2019-07-31'),
8 => array('2019-08-01','2019-08-31'),
9 => array('2019-09-01','2019-09-30'),
10 => array('2019-10-01','2019-10-31'),
11 => array('2019-11-01','2019-11-30'),
12 => array('2019-12-01','2019-12-31'),
13 => array('2020-01-01','2020-01-31'),
14 => array('2020-02-01','2020-02-29'),
15 => array('2020-03-01','2020-03-31'),
16 => array('2020-04-01','2020-04-30'),
17 => array('2020-05-01','2020-05-31'),
18 => array('2020-06-01','2020-06-30'),
19 => array('2020-07-01','2020-07-31'),
20 => array('2020-08-01','2020-08-31'),
21 => array('2020-09-01','2020-09-30'),
22 => array('2020-10-01','2020-10-31'),
23 => array('2020-11-01','2020-11-30'),
24 => array('2020-12-01','2020-12-31')
);
foreach ($parent_array as $child_array) {
//compare dates using strtotime, did the conversion in the if statement to retain the original date format, for output if results are found.
if (strtotime($php_current_date) >= strtotime($child_array[0]) && strtotime($php_current_date) <= strtotime($child_array[1])) {
// match found...
$current_pay_period_start = $child_array[0];
$current_pay_period_end = $child_array[1];
print 'Php Current Date: ' . $php_current_date;
print '<br>';
print 'Current Pay Period Start: ' . $current_pay_period_start;
print '<br>';
print 'Current Pay Period End: ' . $current_pay_period_end;
exit;
}
}
希望这会有帮助
因为mysql在查询中使用<而不是=<进行比较，下面的它迎合范围为1=>array（'2019-01-01'，'2019-01-31 23:59:59'）的Select查询。
。这是错误的、过时的还是糟糕的方法？我愿意听取建议。现在，我正在考虑在每个数组的末尾创建一个子数组，并在其末尾加上'23:59:59'。我会尝试使用strotime
和strotime（“月的最后一天”）
这样的相对日期来解决这个问题。在查询中使用日期之前，你可以改变它的格式。老实说，我认为这取决于你的mysql字段是日期还是日期时间。我只想做一些边缘案例测试，但无论哪种方式，您都应该能够让它工作。这也会帮助你轻松地获得一个月的第一天和最后一天。好极了我将能够使用这个每周，每两周，每月，每季度，每年。
$php_current_date = date('Y-m-d');
$parent_array = array(
1 => array('2019-01-01','2019-01-31'),
2 => array('2019-02-01','2019-02-28'),
3 => array('2019-03-01','2019-03-31'),
4 => array('2019-04-01','2019-04-30'),
5 => array('2019-05-01','2019-05-31'),
6 => array('2019-06-01','2019-06-30'),
7 => array('2019-07-01','2019-07-31'),
8 => array('2019-08-01','2019-08-31'),
9 => array('2019-09-01','2019-09-30'),
10 => array('2019-10-01','2019-10-31'),
11 => array('2019-11-01','2019-11-30'),
12 => array('2019-12-01','2019-12-31'),
13 => array('2020-01-01','2020-01-31'),
14 => array('2020-02-01','2020-02-29'),
15 => array('2020-03-01','2020-03-31'),
16 => array('2020-04-01','2020-04-30'),
17 => array('2020-05-01','2020-05-31'),
18 => array('2020-06-01','2020-06-30'),
19 => array('2020-07-01','2020-07-31'),
20 => array('2020-08-01','2020-08-31'),
21 => array('2020-09-01','2020-09-30'),
22 => array('2020-10-01','2020-10-31'),
23 => array('2020-11-01','2020-11-30'),
24 => array('2020-12-01','2020-12-31')
);
foreach ($parent_array as $child_array) {
//compare dates using strtotime, did the conversion in the if statement to retain the original date format, for output if results are found.
if (strtotime($php_current_date) >= strtotime($child_array[0]) && strtotime($php_current_date) <= strtotime($child_array[1])) {
// match found...
$current_pay_period_start = $child_array[0];
$current_pay_period_end = $child_array[1];
print 'Php Current Date: ' . $php_current_date;
print '<br>';
print 'Current Pay Period Start: ' . $current_pay_period_start;
print '<br>';
print 'Current Pay Period End: ' . $current_pay_period_end;
exit;
}
}
$php_current_date = date('Y-m-d');
$parent_array = array(
1 => array('2019-01-01','2019-01-31'),
2 => array('2019-02-01','2019-02-28'),
3 => array('2019-03-01','2019-03-31'),
4 => array('2019-04-01','2019-04-30'),
5 => array('2019-05-01','2019-05-31'),
6 => array('2019-06-01','2019-06-30'),
7 => array('2019-07-01','2019-07-31'),
8 => array('2019-08-01','2019-08-31'),
9 => array('2019-09-01','2019-09-30'),
10 => array('2019-10-01','2019-10-31'),
11 => array('2019-11-01','2019-11-30'),
12 => array('2019-12-01','2019-12-31'),
13 => array('2020-01-01','2020-01-31'),
14 => array('2020-02-01','2020-02-29'),
15 => array('2020-03-01','2020-03-31'),
16 => array('2020-04-01','2020-04-30'),
17 => array('2020-05-01','2020-05-31'),
18 => array('2020-06-01','2020-06-30'),
19 => array('2020-07-01','2020-07-31'),
20 => array('2020-08-01','2020-08-31'),
21 => array('2020-09-01','2020-09-30'),
22 => array('2020-10-01','2020-10-31'),
23 => array('2020-11-01','2020-11-30'),
24 => array('2020-12-01','2020-12-31')
);
foreach ($parent_array as $child_array) {
//compare dates using strtotime, did the conversion in the if statement to retain the original date format, for output if results are found.
if (strtotime($php_current_date) >= strtotime($child_array[0]) && strtotime($php_current_date) <= strtotime($child_array[1])) {
// match found...
$current_pay_period_start = $child_array[0];
$current_pay_period_end = $child_array[1];
print 'Php Current Date: ' . $php_current_date;
print '<br>';
print 'Current Pay Period Start: ' . $current_pay_period_start;
print '<br>';
print 'Current Pay Period End: ' . $current_pay_period_end;
exit;
}
}
Php Current Date: 2019-03-07
Current Pay Period Start: 2019-03-01
Current Pay Period End: 2019-03-31