11-12-2007
Timestamp in MySQL
Someone please help me with MySQL. I have a field in the table that contains the UNIX timestamp. Using PHP, I can format that timestamp in any way I like.
Now, I want to fetch rows for a particular date. For example, all rows having timestamp equivalent to 11th November 2007 or all rows having timestamp equivalent to 7th January 2006.
One method is to fetch all rows using MySQL query and then using PHP, filter them using If-Else and the PHP function I use to format the timestamp. I can do it easily but this method is not the right way and it may create problems later when the data grows.
What's the other way? Actually I want to filter the records through the MySQL query. It should be something like this: "select * from mytable where timestamp=____". As you know, timestamps are the seconds and for each day (e.g 11th November 2007), their values will be different for all the rows belonging to that date. In short, I want to convert timestamp to ordinary date in the MySQL query and probably using any MySQL function.
Anyone has any idea how to proceed?
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LEARN ABOUT PHP
datetimeinterface.gettimestamp
DATETIMEINTERFACE.GETTIMESTAMP(3) 1 DATETIMEINTERFACE.GETTIMESTAMP(3)
DateTime::getTimestamp - Gets the Unix timestamp
Object oriented style
SYNOPSIS
public int DateTime::getTimestamp (void )
DESCRIPTION
int DateTimeImmutable::getTimestamp (void ) int DateTimeInterface::getTimestamp (void )
Procedural style
int date_timestamp_get (DateTimeInterface $object)
Gets the Unix timestamp.
PARAMETERS
This function has no parameters.
RETURN VALUES
Returns the Unix timestamp representing the date.
EXAMPLES
Example #1
DateTimeInterface.getTimestamp(3) example
Object oriented style
<?php
$date = new DateTime();
echo $date->getTimestamp();
?>
Procedural style
<?php
$date = date_create();
echo date_timestamp_get($date);
?>
The above examples will output something similar to:
1272509157
NOTES
Using U as the parameter to DateTime.format(3) is an alternative when using PHP 5.2.
SEE ALSO
DateTime.setTimestamp(3), DateTime.format(3).
PHP Documentation Group DATETIMEINTERFACE.GETTIMESTAMP(3)