The PHP date () function is used to format date and/or a time and formats as timestamp to a more readable data and time.
Date (format, timestamp)//format is required and timestamp is optional
Here is some characters that is commonly uesd for dates:
Other characters like '/', '. ' or '-' can also is inserted between the characters to add additional formatting.
<?php
echo "Today is". Date ("Y/m/d"). "<br>";
echo "Today is". Date ("Y.M.D"). "<br>";
echo "Today is". Date ("y-m-d"). "<br>";
echo "Today is". Date ("L");
?>
Output
Today is 2016/02/17
Today is 2016.02.17
Today is 2016-02-17
Today is Wednesday
Use the date () function to automatically update the copyright year on the website
© 2010-<?php echo Date ("Y");?>
Here is some characters that is commonly used for times:
<! DOCTYPE html>
<body>
<?php
echo "The time is". Date ("H:i:sa");
?>
</body>
Output:the Time is 11:22:38pm
PHP use Date_default_timezone_set () function to set timezone
<?php
Date_default_timezone_set ("America/new_york");
echo "The time is". Date ("H:i:sa");
?>
Output:the Time is 11:24:21pm
The Mktime () function returns the Unix timestamp for a date. The UNIX timestamp Contais the number of seconds between the Unix Epoch and the time specified.
Mktime (hour, minute, second, month, day, year)
<?php
$d =mktime (11, 14, 54, 8, 12, 2014);
echo "Created date is". Date ("Y-m-d H:i:sa", $d);
?>
output:created date is 2014-08-12 11:14:54am
The PHP strtotime () function is used to convert a human readable string to a Unix time.
Strtotime (time, now)
<?php
$d =strtotime ("10:30pm April 15 2014");
echo "Created date is". Date ("Y-m-d H:i:sa", $d);
?>
output:created date is 2014-04-15 10:30:00pm
<?php
$d =strtotime ("Tomorrow");
echo Date ("Y-m-d H:i:sa", $d). "<br>";
$d =strtotime ("Next Saturday");
echo Date ("Y-m-d H:i:sa", $d). "<br>";
$d =strtotime ("+3 Months");
echo Date ("Y-m-d H:i:sa", $d). "<br>";
?>
<?php
$startdate = Strtotime ("Saturday");
$enddate = Strtotime ("+6 weeks", $startdate);
while ($startdate < $enddate) {
echo Date ("M D", $startdate), "<br>";
$startdate = Strtotime ("+1 Week", $startdate);
}
?>
<?php
$d 1=strtotime ("July 04");
$d 2=ceil (($d 1-time ())/60/60/24);
echo "There is". $d 2. "Days until 4th of July.";
?>
Date and Time
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