Convert one date format into another in PHP

Question

Is there a simple way to convert one date format into another date format in PHP   I have this    old date   date  y-m-d-h-i-s                  works   middle   strtotime  old date                  returns bool false    new date   date  Y-m-d H i s    middle        returns 1970-01-01 00 00 00   But I d of course like it to return a current date rather than the crack  o dawn  What am I doing wrong

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The Basics  The simplist way to convert one date format into another is to use strtotime   with date    strtotime   will convert the date into a Unix Timestamp  That Unix Timestamp can then be passed to date   to convert it to the new format     timestamp   strtotime  2008-07-01T22 35 17 02     new date format   date  Y-m-d H i s    timestamp     Or as a one-liner       new date format   date  Y-m-d H i s   strtotime  2008-07-01T22 35 17 02       Keep in mind that strtotime   requires the date to be in a valid format  Failure to provide a valid format will result in strtotime   returning false which will cause your date to be 1969-12-31   Using DateTime    As of PHP 5 2  PHP offered the DateTime   class which offers us more powerful tools for working with dates  and time   We can rewrite the above code using DateTime   as so    date   new DateTime  2008-07-01T22 35 17 02     new date format    date- gt format  Y-m-d H i s      Working with Unix timestamps  date   takes a Unix timeatamp as its second parameter and returns a formatted date for you    new date format   date  Y-m-d H i s    1234567890      DateTime   works with Unix timestamps by adding an   before the timestamp    date   new DateTime   1234567890     new date format    date- gt format  Y-m-d H i s      If the timestamp you have is in milliseconds  it may end in 000 and or the timestamp is thirteen characters long  you will need to convert it to seconds before you can can convert it to another format  There s two ways to do this    Trim the last three digits off using substr     Trimming the last three digits can be acheived several ways  but using substr   is the easiest    timestamp   substr  1234567899000   -3      Divide the substr by 1000   You can also convert the timestamp into seconds by dividing by 1000  Because the timestamp is too large for 32 bit systems to do math on you will need to use the BCMath library to do the math as strings    timestamp   bcdiv  1234567899000    1000      To get a Unix Timestamp you can use strtotime   which returns a Unix Timestamp    timestamp   strtotime  1973-04-18      With DateTime   you can use DateTime  getTimestamp     date   new DateTime  2008-07-01T22 35 17 02     timestamp    date- gt getTimestamp      If you re running PHP 5 2 you can use the U formatting option instead    date   new DateTime  2008-07-01T22 35 17 02     timestamp    date- gt format  U      Working with non-standard and ambiguous date formats      Unfortunately not all dates that a developer has to work with are in a standard format  Fortunately PHP 5 3 provided us with a solution for that  DateTime  createFromFormat   allows us to tell PHP what format a date string is in so it can be successfully parsed into a DateTime object for further manipulation    date   DateTime  createFromFormat  F-d-Y h i A    April-18-1973 9 48 AM     new date format    date- gt format  Y-m-d H i s      In PHP 5 4 we gained the ability to do class member access on instantiation has been added which allows us to turn our DateTime   code into a one-liner    new date format    new DateTime  2008-07-01T22 35 17 02   - gt format  Y-m-d H i s      new date format   DateTime  createFromFormat  F-d-Y h i A    April-18-1973 9 48 AM  - gt format  Y-m-d H i s

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old date   date  y-m-d-h-i-s             works   you are doing wrong here  this should be   old date   date  y-m-d h i s             works   separator of time is        I think this will help      old date   date  y-m-d-h-i-s                    works  preg match all     d  -  d  -  d  -  d  -  d  -  d       old date   out  PREG SET ORDER    out    out 0    time   mktime  out 4    out 5    out 6    out 2    out 3    out 1      new date   date  Y-m-d H i s    time      OR     old date   date  y-m-d-h-i-s                    works   out   explode  -    old date    time   mktime  out 3    out 4    out 5    out 1    out 2    out 0      new date   date  Y-m-d H i s    time

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To convert  date from dd-mm-yyyy hh mm ss to a proper MySQL datetime I go like this    date   DateTime  createFromFormat  d-m-Y H i s   date - gt format  Y-m-d H i s

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I know this is old  but  in running into a vendor that inconsistently uses 5 different date formats in their APIs  and test servers with a variety of PHP versions from the 5 s through the latest 7 s   I decided to write a universal converter that works with a myriad of PHP versions    This converter will take virtually any input  including any standard datetime format  including with or without milliseconds  and any Epoch Time representation  including with or without milliseconds  and convert it to virtually any other format    To call it    TheDateTimeIWant convertAnyDateTome toMyDateTime  thedateIhave   theformatIwant      Sending null for the format will make the function return the datetime in Epoch Unix Time  Otherwise  send any format string that date   supports  as well as with   u  for milliseconds  I handle milliseconds as well  even though date   returns zeros    Here s the code            lt  php            function convertAnyDateTime toMyDateTime  dttm  dtFormat                        if   isset  dttm                                 return                                timepieces   array                if  is numeric  dttm                                  rettime  dttm                            else                                rettime strtotime  dttm                   if  strpos  dttm      gt 0 and strpos  dttm  -  strpos  dttm       gt 0                                         rettime  rettime substr  dttm strpos  dttm      strpos  dttm  -  strpos  dttm      -strpos  dttm                             timepieces 1                                        else if  strpos  dttm      gt 0 and strpos  dttm  -  strpos  dttm        0                                                       preg match     0-9      0-9      substr  dttm strpos  dttm            timepieces                        rettime  rettime      timepieces 1                                                if  isset  dtFormat                                    RETURN as ANY date format sent                 if  strpos  dtFormat   u   gt 0           Deal with milliseconds                                        rettime date  dtFormat  rettime                                      rettime substr  rettime 0 strripos  rettime      1   timepieces 1                                                     else                                   NO milliseconds wanted                                        rettime date  dtFormat  rettime                                               else                                  RETURN Epoch Time  do nothing  we already built Epoch Time                                      return  rettime                      gt    Here s some sample calls - you will note it also handles any time zone data  though as noted above  any non GMT time is returned in your time zone              utctime1  2018-10-30T06 10 11 2185007-07 00            utctime2  2018-10-30T06 10 11 2185007            utctime3  2018-10-30T06 10 11 2185007 PDT            utctime4  2018-10-30T13 10 11 2185007Z            utctime5  2018-10-30T13 10 11Z            dttm  10 30 2018 09 10 11 AM EST            echo   lt pre gt            echo   lt b gt Epoch Time to a standard format lt  b gt  lt br gt            echo   lt br gt Epoch Tm  1540905011    to STD DateTime     ----RESULT    convertAnyDateTime toMyDateTime  1540905011   Y-m-d H i s     lt hr gt            echo   lt br gt Epoch Tm  1540905011          to UTC        ----RESULT    convertAnyDateTime toMyDateTime  1540905011   c            echo   lt br gt Epoch Tm  1540905011 2185007  to UTC        ----RESULT    convertAnyDateTime toMyDateTime  1540905011 2185007   c     lt hr gt            echo   lt b gt Returned as Epoch Time  the number of seconds that have elapsed since 00 00 00 Thursday  1 January 1970  Coordinated Universal Time  UTC   minus leap seconds             echo   lt  b gt  lt br gt            echo   lt br gt UTCTime1     utctime1   ----RESULT    convertAnyDateTime toMyDateTime  utctime1 null           echo   lt br gt UTCTime2     utctime2         ----RESULT    convertAnyDateTime toMyDateTime  utctime2 null           echo   lt br gt UTCTime3     utctime3     ----RESULT    convertAnyDateTime toMyDateTime  utctime3 null           echo   lt br gt UTCTime4     utctime4        ----RESULT    convertAnyDateTime toMyDateTime  utctime4 null           echo   lt br gt UTCTime5     utctime5                ----RESULT    convertAnyDateTime toMyDateTime  utctime5 null           echo   lt br gt NO MILIS     dttm          ----RESULT    convertAnyDateTime toMyDateTime  dttm null           echo   lt hr gt            echo   lt hr gt            echo   lt b gt Returned as whatever datetime format one desires lt  b gt            echo   lt br gt UTCTime1     utctime1   ----RESULT    convertAnyDateTime toMyDateTime  utctime1  Y-m-d H i s                  Y-m-d H i s           echo   lt br gt UTCTime2     utctime2         ----RESULT    convertAnyDateTime toMyDateTime  utctime2  Y-m-d H i s u          Y-m-d H i s u           echo   lt br gt UTCTime3     utctime3     ----RESULT    convertAnyDateTime toMyDateTime  utctime3  Y-m-d H i s u          Y-m-d H i s u           echo   lt p gt  lt b gt Returned as ISO8601 lt  b gt            echo   lt br gt UTCTime3     utctime3     ----RESULT    convertAnyDateTime toMyDateTime  utctime3  c            ISO8601           echo   lt  pre gt      Here s the output   Epoch Tm  1540905011                        ----RESULT  2018-10-30 09 10 11  Epoch Tm  1540905011          to UTC        ----RESULT  2018-10-30T09 10 11-04 00 Epoch Tm  1540905011 2185007  to UTC        ----RESULT  2018-10-30T09 10 11-04 00 Returned as Epoch Time  the number of seconds that have elapsed since 00 00 00 Thursday  1 January 1970  Coordinated Universal Time  UTC   minus leap seconds    UTCTime1  2018-10-30T06 10 11 2185007-07 00 ----RESULT  1540905011 2185007 UTCTime2  2018-10-30T06 10 11 2185007       ----RESULT  1540894211 2185007 UTCTime3  2018-10-30T06 10 11 2185007 PDT   ----RESULT  1540905011 2185007 UTCTime4  2018-10-30T13 10 11 2185007Z      ----RESULT  1540905011 2185007 UTCTime5  2018-10-30T13 10 11Z              ----RESULT  1540905011 NO MILIS  10 30 2018 09 10 11 AM EST        ----RESULT  1540908611 Returned as whatever datetime format one desires UTCTime1  2018-10-30T06 10 11 2185007-07 00 ----RESULT  2018-10-30 09 10 11              Y-m-d H i s UTCTime2  2018-10-30T06 10 11 2185007       ----RESULT  2018-10-30 06 10 11 2185007      Y-m-d H i s u UTCTime3  2018-10-30T06 10 11 2185007 PDT   ----RESULT  2018-10-30 09 10 11 2185007      Y-m-d H i s u Returned as ISO8601 UTCTime3  2018-10-30T06 10 11 2185007 PDT   ----RESULT  2018-10-30T09 10 11-04 00        ISO8601   The only thing not in this version is the ability to select the time zone you want the returned datetime to be in  Originally  I wrote this to change any datetime to Epoch Time  so  I didn t need time zone support  It s trivial to add though

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This is the other way you can convert date format    lt  php  pastDate    Tuesday 11th October  2016    pastDate   str replace         pastDate     date   new DateTime  pastDate    new date format    date- gt format  Y-m-d     echo  new date format   23 59 59     gt

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Try this    old date   date  y-m-d-h-i-s     new date   date  Y-m-d H i s   strtotime  old date

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The easiest way to do this is   myDateTime   DateTime  createFromFormat  Y-m-d    dateString    newDateString    myDateTime- gt format  m d Y      You are first giving it the format  dateString is in  Then you are telling it the format you want  newDateString to be in   This also avoids the use of strtotime  which can be hard to work with at times   If you are not transforming from one date format to another  but just want the current date  or datetime  in a specific format then it s even easier    now   new DateTime     timestring    now- gt format  Y-m-d h i s      This other question also refers to the same topic  Convert date format yyyy-mm-dd   gt  dd-mm-yyyy

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The second parameter to date   needs to be a proper timestamp  seconds since January 1  1970   You are passing a string  which date   can t recognize   You can use strtotime   to convert a date string into a timestamp  However  even strtotime   doesn t recognize the y-m-d-h-i-s format   PHP 5 3 and up  Use DateTime  createFromFormat  It allows you to specify an exact mask - using the date   syntax - to parse incoming string dates with   PHP 5 2 and lower  You will have to parse the elements  year  month  day  hour  minute  second  manually using substr   and hand the results to mktime   that will build you a timestamp    But that s a lot of work  I recommend using a different format that strftime   can understand  strftime   understands any  date input short of the next time joe will slip on the ice  for example  this works    old date   date  l  F d y h i s                    returns Saturday  January 30 10 02 06 34  old date timestamp   strtotime  old date    new date   date  Y-m-d H i s    old date timestamp

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Easiest and simplest way to change date format in php In PHP any date can be converted into the required date format using different scenarios for example to change any date format into Day  Date Month Year  newdate   date  quot D  d M Y quot   strtotime  date     It will show date in the following very well format Mon  16 Nov 2020 And if you have time as well in your existing date format for example if you have datetime format of SQL 2020-11-11 22 00 00 you can convert this into the required date format using the following  newdateformat   date  quot D  d M Y H i s quot   strtotime  oldateformat     It will show date in following well looking format Sun  15 Nov 2020 16 26 00

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This solved for me    old    18-04-2018    new   date  Y-m-d   strtotime  old    echo  new    Output   2018-04-18

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The following is an easy method to convert dates to different formats      Create a new DateTime object  date   DateTime  createFromFormat  Y-m-d    2016-03-25        Output the date in different formats echo  date- gt format  Y-m-d     n   echo  date- gt format  d-m-Y     n   echo  date- gt format  m-d-Y     n

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This native way will help to convert any inputted format to the desired format    formatInput    d-m-Y     Give any format here  this would be converted into your format  dateInput    01-02-2018     date in above format   formatOut    Y-m-d      Your format  dateOut   DateTime  createFromFormat  formatInput   dateInput - gt format  formatOut

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Try this    tempDate   explode  -   03-23-15     date    20   tempDate 2   -   tempDate 0   -   tempDate 1

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Just using strings  for me is a good solution  less problems with mysql  Detects the current format and changes it if necessary  this solution is only for spanish french format and english format  without use php datetime function   class dateTranslator     public static function translate  date   lang           divider              if  empty  date               return null                   if  strpos  date   -       false                divider    -           else if  strpos  date           false                divider                        spanish format DD MM YYYY hh mm       if  strcmp  lang   es      0                 type   explode  divider   date  0              if  strlen  type     4                     date   self  reverseDate  date  divider                            if  strcmp  divider   -      0                     date   str replace  -         date                        english format YYYY-MM-DD hh mm         else                type   explode  divider   date  0              if  strlen  type     2                      date   self  reverseDate  date  divider                            if  strcmp  divider          0                     date   str replace       -    date                                  return  date       public static function reverseDate  date           date2   explode       date         if  count  date2     2                date   implode  -   array reverse preg split    D     date2 0              date2 1           else               date   implode  -   array reverse preg split    D     date                    return  date       USE  dateTranslator  translate  date   en

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You need to convert the  old date back into a timestamp  as the date function requires a timestamp as its second argument

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strtotime will work that out  the dates are just not the same and all in us-format    lt  php  e1   strtotime  2013-07-22T12 00 03Z    echo date  y m d H i    e1   echo  2013-07-22T12 00 03Z     e2   strtotime  2013-07-23T18 18 15Z    echo date   y m d H i    e2   echo  2013-07-23T18 18 15Z     e1   strtotime  2013-07-21T23 57 04Z    echo date   y m d H i    e2   echo  2013-07-21T23 57 04Z     gt

[php] Convert one date format into another in PHP

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