Date max: Difference between revisions
From LimeSurvey Manual
(Erronous syntax to set maximum dates corrected.) |
(Small error in date example.) |
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#'''Any year value''' | #'''Any year value''' | ||
#'''Reference to another date/time question''' (eg., dateofbirth) | #'''Reference to another date/time question''' (eg., dateofbirth) | ||
#'''Expressions''' With expressions, a maximum date can be dynamically calculated. For example, you can use a date from a previous answer + 4 weeks as a maximum for the present question by entering: date("Y-m-d H:i",strtotime(departuredate)+4*60*60*24*7). Another example: you can set a restriction for "allowing any date not later than today" by entering: date('Y-m-d | #'''Expressions''' With expressions, a maximum date can be dynamically calculated. For example, you can use a date from a previous answer + 4 weeks as a maximum for the present question by entering: date("Y-m-d H:i",strtotime(departuredate)+4*60*60*24*7). Another example: you can set a restriction for "allowing any date not later than today" by entering: date('Y-m-d'). By entering date("Y-m-d", strtotime("now")+60*60*24*2), dates up to two days from today are allowed. | ||
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Revision as of 18:25, 8 June 2015
Maximum date (date_max) (New in 2.05 )
Description
This question attribute can be used to set the maximum value for the calendar question. It applies to both, the popup-variant of the calendar and the dropdown fields.
Valid values
- Any date value in format YYYY-MM-DD (eg., 2013-08-24)
- Any year value
- Reference to another date/time question (eg., dateofbirth)
- Expressions With expressions, a maximum date can be dynamically calculated. For example, you can use a date from a previous answer + 4 weeks as a maximum for the present question by entering: date("Y-m-d H:i",strtotime(departuredate)+4*60*60*24*7). Another example: you can set a restriction for "allowing any date not later than today" by entering: date('Y-m-d'). By entering date("Y-m-d", strtotime("now")+60*60*24*2), dates up to two days from today are allowed.