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Top Forums Shell Programming and Scripting Check if a date field has date or timestamp or date&timestamp Post 302602003 by machomaddy on Saturday 25th of February 2012 01:31:41 PM
Old 02-25-2012
Check if a date field has date or timestamp or date&timestamp

Hi,
In a field, I should receive the date with time stamp in a particular field. But sometimes the vendor sends just the date or the timestamp or correctl the date&timestamp. I have to figure out the the data is a date or time stamp or date&timestamp.
If it is date then append "<space>00:00:00" to it.
If it is a time stamp, store the data in a different file(invalid_dttmstmp.txt) and remove from this file.
If it is a date timestamp then do nothing.

Input file:

Code:
File1
====
Field 1
=====
00:00:00
<space>01:01:01
2012-02-25 00:30:14
2012-02-25

Expected output

Code:
File1
====
Field 1
=====
2012-02-25 00:30:14
2012-02-25 00:00:00

invalid_dttmstmp.txt
===============
Field 1
======
00:00:00
<space>01:01:01

I coded for date part and that works. I need help with time stamp validation

Thanks

---------- Post updated 02-26-12 at 12:01 AM ---------- Previous update was 02-25-12 at 11:44 PM ----------

Is it correct to use
Code:
touch -c -d 20120225 dummy --> to check the date

touch -c -t 201220252359.59 -->to check date&timestamp

Is this logic correct. Also can this handle around 4000 different values (if I go for loop) with in a few minutes (1-2min)?? Smilie

Last edited by vbe; 02-25-2012 at 07:13 PM..
 

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DATETIME.__CONSTRUCT(3) 						 1						   DATETIME.__CONSTRUCT(3)

DateTime::__construct - Returns new DateTime object

       Object oriented style

SYNOPSIS
public DateTime::__construct NULL ([string $time = "now"], [DateTimeZone $timezone]) DESCRIPTION
Procedural style DateTime date_create NULL ([string $time = "now"], [DateTimeZone $timezone]) Returns new DateTime object. PARAMETERS
o $time -A date/time string. Valid formats are explained in Date and Time Formats. Enter NULL here to obtain the current time when using the $timezone parameter. o $timezone - A DateTimeZone object representing the timezone of $time. If $timezone is omitted, the current timezone will be used. Note The $timezone parameter and the current timezone are ignored when the $time parameter either is a UNIX timestamp (e.g. @946684800) or specifies a timezone (e.g. 2010-01-28T15:00:00+02:00). RETURN VALUES
Returns a new DateTime instance. Procedural style returns FALSE on failure. ERRORS
/EXCEPTIONS Emits Exception in case of an error. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | If $time contains an invalid date/time format, | | | then an exception is now thrown. Previously an | | | error was emitted. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 DateTime.__construct(3) example Object oriented style <?php try { $date = new DateTime('2000-01-01'); } catch (Exception $e) { echo $e->getMessage(); exit(1); } echo $date->format('Y-m-d'); ?> Procedural style <?php $date = date_create('2000-01-01'); if (!$date) { $e = date_get_last_errors(); foreach ($e['errors'] as $error) { echo "$error "; } exit(1); } echo date_format($date, 'Y-m-d'); ?> The above examples will output: 2000-01-01 Example #2 Intricacies of DateTime.__construct(3) <?php // Specified date/time in your computer's time zone. $date = new DateTime('2000-01-01'); echo $date->format('Y-m-d H:i:sP') . " "; // Specified date/time in the specified time zone. $date = new DateTime('2000-01-01', new DateTimeZone('Pacific/Nauru')); echo $date->format('Y-m-d H:i:sP') . " "; // Current date/time in your computer's time zone. $date = new DateTime(); echo $date->format('Y-m-d H:i:sP') . " "; // Current date/time in the specified time zone. $date = new DateTime(null, new DateTimeZone('Pacific/Nauru')); echo $date->format('Y-m-d H:i:sP') . " "; // Using a UNIX timestamp. Notice the result is in the UTC time zone. $date = new DateTime('@946684800'); echo $date->format('Y-m-d H:i:sP') . " "; // Non-existent values roll over. $date = new DateTime('2000-02-30'); echo $date->format('Y-m-d H:i:sP') . " "; ?> The above example will output something similar to: 2000-01-01 00:00:00-05:00 2000-01-01 00:00:00+12:00 2010-04-24 10:24:16-04:00 2010-04-25 02:24:16+12:00 2000-01-01 00:00:00+00:00 2000-03-01 00:00:00-05:00 SEE ALSO
DateTime.createFromFormat(3), DateTimeZone.__construct(3), Date and Time Formats, date.timezone ini setting, date_default_time- zone_set(3), DateTime.getLastErrors(3), checkdate(3). PHP Documentation Group DATETIME.__CONSTRUCT(3)
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