Question

<?php
include('include/config.php');

$query  =   "select * from users where user_id='$uid'";

$result =   mysqli_query($con,$query)or die(mysqli_error($con));
$fetchRecord    = mysqli_fetch_assoc($result);

$c_date =   $fetchRecord['create_date'];/*This is date type field in table*/

$date_today =   date("Y-m-d");
echo "Table date is =".$c_date;
echo "<br>";
echo "Today date is =".$date_today;

$difference_date    =   date_diff($c_date,$date_today);
$difference_date->format("%R%a days");
?>

输出给出错误 -

表日期= 2017-12-18

今天的日期是= 2017-12-25

警告：date_diff（）期望参数1为DateTimeInterface，   第17行的C：\ xampp \ htdocs \ kmipvt \ 1.php中给出的字符串

致命错误：未捕获错误：调用成员函数格式（）   C：\ xampp \ htdocs \ kmipvt \ 1.php中的布尔值：18堆栈跟踪：＃0 {main}   在第18行的C：\ xampp \ htdocs \ kmipvt \ 1.php中抛出

Answer 1

尝试添加此内容：

$cn_date = date_create_from_format('Y-m-d', $c_date);

$difference_date    =   date_diff($cn_date,$date_today);

Answer 2

你可以试试这个

Who should start first?:Thread 1 or Thread 2
1
Sending elements by First   1  
Receiving elements by Second:   1  
Sending elements by Second  2  
Receiving elements by First:    2  
Sending elements by First   90  95  28  
Receiving elements by Second:   90  95  28  

Who should start first?:Thread 1 or Thread 2
2
Sending elements by Second  1  
Receiving elements by First:    1  
Sending elements by First   2  
Receiving elements by Second:   2  
Sending elements by Second  42  10  33  
Receiving elements by First:    42  10  33

如何计算两个日期之间的天数？

2 个答案: