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Some methods to convert php time to timestamp
- PHPzOriginal
- 2023-03-29 11:31:40457browse
Timestamp is a digital format that represents time. It represents the accumulated number of seconds since 0:00:00 on January 1, 1970. Timestamps are widely used in many programming languages, including PHP.
In PHP, we can use the time() function to convert the current date and time into a timestamp, for example:
$timestamp = time(); // 获取当前时间戳 echo $timestamp; // 输出时间戳
In the above code, we use the time() function to obtain the current timestamp. , and stores it in the $timestamp variable. Then use the echo statement to output the timestamp to the screen.
In addition, we can also use the strtotime() function to convert a date string into a timestamp, for example:
$strtime = "2019-01-01 12:00:00"; // 定义一个日期字符串 $timestamp = strtotime($strtime); // 将日期字符串转换为时间戳 echo $timestamp; // 输出时间戳
In the above code, we store a date string in the $strtime variable , and convert it to a timestamp using the strtotime() function. Then use the echo statement to output the timestamp to the screen.
It should be noted that when using the strtotime() function to convert a date string into a timestamp, the date format in the string must comply with certain specifications, otherwise it will not be converted correctly. Common date formats include "Y-m-d H:i:s" (year-month-day hour:minute:second), "Y/m/d H:i:s" (year/month/day hour:minute:second) , "YmdHis" (year, month, day, hour, minute, second), etc.
In addition to the above methods, PHP also provides some other date and time functions, such as date(), getdate(), gmdate(), etc., which can implement various time processing operations.
In short, timestamp is an extremely convenient and practical way to represent time, and there are many convenient time conversion functions available in PHP. Developers can choose the appropriate function to convert between timestamp and date and time according to their own needs.
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