␡
- Using Text Within date()
- Automatically Localizing Dates
- Manually Localizing Dates
- Using the Current Date the U.S./U.K./European Way
- Formatting a Specific Date
- Validating a Date
- Calculating a Relative Date
- Creating a Sortable Time Stamp
- Converting a String into a Date
- Determining Sunrise and Sunset
- Using Date and Time for Benchmarks
- Using Form Fields for Date Selection
- Create Self-updating Form Fields for Date Selection
- Calculating the Difference Between Two Dates
- Using GMT Date/Time Information
This chapter is from the book
This chapter is from the book
This chapter is from the book
This chapter is from the book
Creating a Sortable Time Stamp
function timestamp($t = null) {
if ($t == null) {
$t = time();
}
return date(‘YmdHis‘, $t);
}
Sometimes, using date values with a database is not a clever thing. Different language versions of the database, its drivers, or the underlying operating system could cause some trouble when the regional date formats do not fit together.
<?php
function timestamp($t = null) {
if ($t == null) {
$t = time();
}
return date(‘YmdHis‘, $t);
}
echo ‘Time stamp: ‘ . timestamp(time());
?>
Converting a Date into a (Sortable) Time Stamp (timestamp.php)
A potential alternative is the use of time stamps. Several different formats are available, but most of them have the following structure: year-month-day-hours-minutes-seconds. Using this value order, the string representation of the date can be easily sorted, which allows using it in databases.
To create such a time stamp, just a special call to date() is required. In the preceding code, this is encapsulated in a function for easy reuse.