How to convert Y-m-d H:i:s to Y-m-d in PHP? [duplicate]

This question already has answers here: Convert one date format into another in PHP (17 answers) Closed 6 years ago. 开发者_运维知识库

How to convert Y-m-d H:i:s to Y-m-d in PHP?

I have e.g.

$date = "2011-08-10 20:40:12";

and would like to convert it to just

$output = "2011-08-10";

Thanks in advance.

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quick/dirty:

$output = substr('2011-08-10 20:40:12', 0, 10);

slightly more robust:

$output = date('Y-m-d', strtotime('2011-08-10 20:40:12'));

fairly reliable:

$output = DateTime::createFromFormat('Y-m-d h:i:s', '2011-08-10-20:40:12')->format('Y-m-d');

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Easily done with strtotime(), and capable of changing to any other date format you may need as well.

$old_date = "2011-08-10 20:40:12";
$new_date = date("Y-m-d", strtotime($old_date));
echo $new_date;

// Prints 2011-08-10

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Well, a simple way to do it would be the following (if you've already gotten the date in a string):

$output = substr($date, 0, 10);

This would mean that you grab the first 10 characters in "2011-08-10 20:40:12", leaving you with "2011-08-10"!

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You can use the built in php date format function:

http://php.net/manual/en/datetime.format.php

to do this:

$date = date_format($date, 'Y-m-d');

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Another solution, thought not as good is to simply do a substring:

$newDate = substr($date, 0, 10)

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$date = date("Y-m-d", strtotime($date)); 

Just use the date format for date only and convert your string to a timestamp.

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I prefer strftime to date since it's format input matches those in C and other languages.

$output = strftime( '%Y-%m-%d', strtotime( $date) );

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$old_date = "2011-08-10 20:40:12";
$new_date = date("Y-m-d", strtotime($old_date));
echo $new_date;

// Prints 2011-08-10

This should be very useful.

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A tweak to the method using explode so you can turn it into a one liner:

list($date) = explode(' ', $date);

the list function is very handy for dates.

Another example using list:

list($year, $month, $day) = explode(' ', $date);

Also, you are best to use ' instead of " in strings, unless your string includes variables.

e.g.

• 'yada'
• 'bing'
• "Hello {$bob}"

I'm fed up seeing even the PHP docs use "string" in examples where they should use 'string' :o)

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Try:

$date = explode(" ",$date);
$output = $date[0];

If they are separated by space, you can use explode to separate them.