Date min: Difference between revisions
From LimeSurvey Manual
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This question attribute can be used to set the minimum value for | This question attribute can be used to set the minimum value for a date question (in y-m-d format or any English valid string - see below for more details). It can be used for both popup and dropdown display options. | ||
{{Alert|title=Attention|text=The Expression Manager validation option can also be used for setting up a "maximum date". However, if you you use the popup calendar and the expression relies on a previous question located on the same page, the year will not be displayed correctly in the popup calendar.}} | |||
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* Any date value in format YYYY-MM-DD (eg., 2013-08-24) | * Any date value in format YYYY-MM-DD (eg., 2013-08-24); | ||
* Any year value | * Any year value; | ||
* Any [http://php.net/strtotime English string] : "now", "-10 years", "tomorrow" | * Any [http://php.net/strtotime English string] : "now", "-10 years", "tomorrow"; | ||
* Reference to another date/time question : AnotherDateQuestion | * Reference to another date/time question : AnotherDateQuestion (using the question code); | ||
* Expressions : With expressions, a minimum date can be dynamically calculated. For example, you can use a date from a previous answer + 3 days as a minimum for the present question by entering: date("Y-m-d",strtotime(departuredate)+3*60*60*24). | * Expressions : With expressions, a minimum date can be dynamically calculated. For example, you can use a date from a previous answer + 3 days as a minimum for the present question by entering: ''date("Y-m-d",strtotime(departuredate)+3*60*60*24)''. | ||
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Revision as of 17:52, 12 March 2018
Minimum date (date_min)
Description
This question attribute can be used to set the minimum value for a date question (in y-m-d format or any English valid string - see below for more details). It can be used for both popup and dropdown display options.
Attention : The Expression Manager validation option can also be used for setting up a "maximum date". However, if you you use the popup calendar and the expression relies on a previous question located on the same page, the year will not be displayed correctly in the popup calendar.
Valid values
- Any date value in format YYYY-MM-DD (eg., 2013-08-24);
- Any year value;
- Any English string : "now", "-10 years", "tomorrow";
- Reference to another date/time question : AnotherDateQuestion (using the question code);
- Expressions : With expressions, a minimum date can be dynamically calculated. For example, you can use a date from a previous answer + 3 days as a minimum for the present question by entering: date("Y-m-d",strtotime(departuredate)+3*60*60*24).