How to convert date to timestamp in PHP

Question

How do I get timestamp from e g  22-09-2008

User · Answer

Be careful with functions like strtotime   that try to  guess  what you mean  it doesn t guess of course  the rules are here    Indeed 22-09-2008 will be parsed as 22 September 2008  as it is the only reasonable thing    How will 08-09-2008 be parsed  Probably 09 August 2008    What about 2008-09-50  Some versions of PHP parse this as 20 October 2008   So  if you are sure your input is in DD-MM-YYYY format  it s better to use the solution offered by  Armin Ronacher

User · Answer

Use PHP function strtotime    echo strtotime  2019 06 06      date     Format a local time date

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Using strtotime   function you can easily convert date to timestamp    lt  php    set default timezone date default timezone set  America Los Angeles       define date and time  date   date  d M Y H i s        output echo strtotime  date     gt     More info  http   php net manual en function strtotime php  Online conversion tool  http   freeonlinetools24 com

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This method works on both Windows and Unix and is time-zone aware  which is probably what you want if you work with dates   If you don t care about timezone  or want to use the time zone your server uses    d   DateTime  createFromFormat  d-m-Y H i s    22-09-2008 00 00 00    if   d     false        die  Incorrect date string      else       echo  d- gt getTimestamp        1222093324  This will differ depending on your server time zone        If you want to specify in which time zone  here EST   Same as New York     d   DateTime  createFromFormat       d-m-Y H i s        22-09-2008 00 00 00       new DateTimeZone  EST       if   d     false        die  Incorrect date string      else       echo  d- gt getTimestamp        1222093305    Or if you want to use UTC   Same as  GMT      d   DateTime  createFromFormat       d-m-Y H i s        22-09-2008 00 00 00       new DateTimeZone  UTC       if   d     false        die  Incorrect date string      else       echo  d- gt getTimestamp        1222093289    Regardless  it s always a good starting point to be strict when parsing strings into structured data  It can save awkward debugging in the future  Therefore I recommend to always specify date format

User · Answer

lt  php echo date  U     gt    If you want  put it in a MySQL input type timestamp  The above works very well  only in PHP 5 or later     lt  php  timestamp for mysql   date  c     gt

User · Answer

With DateTime API    dateTime   new DateTime  2008-09-22     echo  dateTime- gt format  U         or    date   new DateTime  2008-09-22    echo  date- gt getTimestamp      The same with the procedural API    date   date create  2008-09-22    echo date format  date   U        or   date   date create  2008-09-22    echo date timestamp get  date     If the above fails because you are using a unsupported format  you can use   date   DateTime  createFromFormat   d-m-Y    22-09-2008    echo  dateTime- gt format  U         or   date   date parse from format   d-m-Y    22-09-2008    echo date format  date   U      Note that if you do not set the    the time portion will be set to current time  which is different from the first four which will use midnight when you omit the time   Yet another alternative is to use the IntlDateFormatter API    formatter   new IntlDateFormatter       en US       IntlDateFormatter  FULL      IntlDateFormatter  FULL       GMT       IntlDateFormatter  GREGORIAN       dd-MM-yyyy     echo  formatter- gt parse  22-09-2008      Unless you are working with localized date strings  the easier choice is likely DateTime

User · Answer

Using mktime   list  day   month   year    explode  -    22-09-2008    echo mktime 0  0  0   month   day   year

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time    22-09-2008   echo strtotime  time

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Please be careful about time zone if you set it to save dates in database  as I got an issue when I compared dates from mysql that converted to timestamp using strtotime  you must use exactly same time zone before converting date to timestamp otherwise  strtotime   will use default server timezone   Please see this example  https   3v4l org BRlmV  function getthistime  type   modify   null         now   new DateTime null  new DateTimeZone  Asia Baghdad         if  modify             now- gt modify  modify             if  isset  type      type     datetime             return  now- gt format  Y-m-d H i s              if  type     time             return  now- gt format  H i s              if  type     timestamp             return  now- gt getTimestamp            function timestampfromdate  date        return DateTime  createFromFormat  Y-m-d H i s    date  new DateTimeZone  Asia Baghdad   - gt getTimestamp       echo getthistime  timestamp    --       timestampfromdate getthistime  datetime     --       strtotime getthistime  datetime        getthistime  timestamp      timestampfromdate getthistime  datetime     true    getthistime  timestamp      strtotime getthistime  datetime     false

User · Answer

lt  php echo date  M j Y g i A   strtotime  2013-11-15 13 01 02       gt    http   php net manual en function date php

User · Answer

If you re looking to convert a UTC datetime  2016-02-14T12 24 48 321Z  to timestamp  here s how you d do it   function UTCToTimestamp  utc datetime str        preg match all        T            Z i    utc datetime str   matches arr        datetime str    matches arr 1  0       matches arr 2  0        return strtotime  datetime str       my utc datetime str    2016-02-14T12 24 48 321Z    my timestamp str   UTCToTimestamp  my utc datetime str

User · Answer

If you want to know for sure whether a date gets parsed into something you expect  you can use DateTime  createFromFormat      d   DateTime  createFromFormat  d-m-Y    22-09-2008    if   d     false        die  Woah  that date doesn t look right       echo  d- gt format  Y-m-d    PHP EOL     prints 2008-09-22   It s obvious in this case  but e g  03-04-2008 could be 3rd of April or 4th of March depending on where you come from

User · Answer

This method works on both Windows and Unix and is time-zone aware  which is probably what you want if you work with dates   If you don t care about timezone  or want to use the time zone your server uses    d   DateTime  createFromFormat  d-m-Y H i s    22-09-2008 00 00 00    if   d     false        die  Incorrect date string      else       echo  d- gt getTimestamp        1222093324  This will differ depending on your server time zone        If you want to specify in which time zone  here EST   Same as New York     d   DateTime  createFromFormat       d-m-Y H i s        22-09-2008 00 00 00       new DateTimeZone  EST       if   d     false        die  Incorrect date string      else       echo  d- gt getTimestamp        1222093305    Or if you want to use UTC   Same as  GMT      d   DateTime  createFromFormat       d-m-Y H i s        22-09-2008 00 00 00       new DateTimeZone  UTC       if   d     false        die  Incorrect date string      else       echo  d- gt getTimestamp        1222093289    Regardless  it s always a good starting point to be strict when parsing strings into structured data  It can save awkward debugging in the future  Therefore I recommend to always specify date format

User · Answer

There is also strptime   which expects exactly one format    a   strptime  22-09-2008     d- m- Y     timestamp   mktime 0  0  0   a  tm mon   1   a  tm mday     a  tm year   1900

User · Answer

Given that the function strptime   does not work for Windows and strtotime   can return unexpected results  I recommend using date parse from format      date   date parse from format  d-m-Y    22-09-2008     timestamp   mktime 0  0  0   date  month     date  day     date  year

User · Answer

If you know the format use strptime because strtotime does a guess for the format  which might not always be correct  Since strptime is not implemented in Windows there is a custom function   http   nl3 php net manual en function strptime php 86572   Remember that the returnvalue tm year is from 1900  and tm month is 0-11  Example    a   strptime  22-09-2008     d- m- Y     timestamp   mktime 0  0  0   a  tm mon   1   a  tm mday     a  tm year   1900

User · Answer

Here is how I d do it   function dateToTimestamp  date   format   timezone  Europe Belgrade           returns an array containing day start and day end timestamps      old timezone date timezone get        date default timezone set  timezone        date strptime  date  format        day start mktime 0 0 0    date  tm mon      date  tm mday     date  tm year   1900         day end  day start  60 60 24       date default timezone set  old timezone       return array  day start   gt  day start   day end   gt  day end       timestamps dateToTimestamp  15 02 1991      d  m  Y     Europe London     day start  timestamps  day start      This way  you let the function know what date format you are using and even specify the timezone

User · Answer

function date to stamp   date   slash time   true   timezone    Europe London    expression       d 2     d    d 2     d    d 4   is           return   false        timezone   date default timezone get        date default timezone set   timezone        if  preg match   expression   date   matches              return   date   Y-m-d        slash time    00 00 00     h i s     strtotime  str replace  array  matches 1    matches 2     -    date           date  h i s            date default timezone set    timezone        return  return        expression may need changing in relation to timezone echo date to stamp  19 03 1986   false      lt br   gt    echo date to stamp  19  03  1986   false      lt br   gt    echo date to stamp  19 03 1986       lt br   gt    echo date to stamp  19 03 1986   false   Asia Aden       lt br   gt    echo date  Y-m-d h i s       lt br   gt       1986-03-19 02 37 30   1986-03-19 02 37 30   1986-03-19 00 00 00   1986-03-19 05 37 30   2012-02-12 02 37 30

User · Answer

Here is a very simple and effective solution using the split and mtime functions    date  30 07 2010 13 24     Date example list  day   month   year   hour   minute    split           date       The variables should be arranged according to your date format and so the separators  timestamp   mktime  hour   minute  0   month   day   year   echo date  r    timestamp     It worked like a charm for me

[php] How to convert date to timestamp in PHP?

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