DATEVALUE

08:31:19 Converts a date in the form of text to a serial number.
08:31:19 Warning: The PhpSpreadsheet DATEVALUE() function accepts a wider range of date formats than MS Excel DATEFORMAT() function.
08:31:19 Date String: 26 March 2012
08:31:19 Formula: =DATEVALUE(A1)
08:31:19 Excel DateStamp: 40994
08:31:19 Formatted DateStamp2012-Mar-26
08:31:19
08:31:19 Date String: 29 Feb 2012
08:31:19 Formula: =DATEVALUE(A2)
08:31:19 Excel DateStamp: 40968
08:31:19 Formatted DateStamp2012-Feb-29
08:31:19
08:31:19 Date String: April 1, 2012
08:31:19 Formula: =DATEVALUE(A3)
08:31:19 Excel DateStamp: 41000
08:31:19 Formatted DateStamp2012-Apr-01
08:31:19
08:31:19 Date String: 25/12/2012
08:31:19 Formula: =DATEVALUE(A4)
08:31:19 Excel DateStamp: 41268
08:31:19 Formatted DateStamp2012-Dec-25
08:31:19
08:31:19 Date String: 2012-Oct-31
08:31:19 Formula: =DATEVALUE(A5)
08:31:19 Excel DateStamp: 41213
08:31:19 Formatted DateStamp2012-Oct-31
08:31:19
08:31:19 Date String: 5th November
08:31:19 Formula: =DATEVALUE(A6)