Convert String to Date and remove 1 day from String

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I got this string:

$data_final = "26/11/2017";

And I need this variable to look like 25/11/2017. That is, I need to convert string to date and remove 1 day from that date.

php date type-conversion
  • 2

    echo date('d/m/Y', strtotime('-1 days', strtotime('26-11-2017')));

  • This code did not work, it showed 31/12/1969

  • 1

    @Felipemorenoborges take a look at my answer. You try trying with the date in Brazilian or American format?

  • 1

    @Felipemorenoborges Rsantos' answer is now right. It is worth taking a look too.

  • @Did Felipemorenoborges solve your question? If yes, mark it as correct to facilitate others who may have the same question to find the answer more easily.

3 answers

4

$data = '26/11/2017';

$data = DateTime::createFromFormat('d/m/Y', $data);
$data->sub(new DateInterval('P1D')); // -1 dia
echo $data->format('d/m/Y');

I used the sub to remove the amount of days required, content HERE

Briefly the P symbolizes the period, the 1 the amount of the period to be removed and the D symbolizes days.

  • This code did not work, it showed 31/12/1969

  • 1

    His answer has a little problem: AP asked in the format d/m/Y, and not in the American format. This must have been the error.

  • @R.Santos just edit it and fix it. So the negatives can be removed and the answer will help AP. This would be a good option: https://www.w3schools.com/PHP/func_date_create_from_format.asp

  • @Wallacemaxters adjusted the answer according to other content that found what you think?

  • @R.Santos looked great. I tested it here and it worked perfectly. I’ll take off the -1 and give you an upvote.

  • 1

    @Wallacemaxters Oh that great then :)

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3


Use the method DateTime::createFromFormat. Through this method it is possible to create an object DateTime from any format. Then having the created object we use the method modify, which accepts as a parameter the same values as strtotime. In the end, we use the method format to get the date in the desired format.

Behold:

$data_final = '26/11/2017';

$ontem = DateTime::createFromFormat('d/m/Y', $data_final)->modify('-1 day');

echo $ontem->format('d/m/Y');

See an example running on Ideone

  • It worked, thank you very much!

  • 2

    @Felipemorenoborges Good, man! consider marking as "I accept" the answer that solved your problem

  • 1

    @Felipemorenoborges if the answer solved your problem please mark it as correct. If you do not know how to do this read: https://pt.meta.stackoverflow.com/q/1078/3635

-1

If you ensure that the variable will always come in xx/xx/xxxx format you can simply use explode followed by implode.

$data_final = explode("/","26/11/2017");

var_dump($data_final);

$data_final[0]--;

echo $data_final[0];

$data_final = implode("/",$data_final);

var_dump($data_final);

But I advise you to use the solution given by Comrade R.Santos

echo date('d/m/Y', strtotime('-1 days', strtotime('26-11-2017')));

  • Same problem as the previous answer. AP requested in format d/m/Y (Brazilian) and not in American format. Therefore, your answer does not apply to the question.

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