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I unfortunately can't use DateTime() as the server this project is on is running PHP v.5.2.

the line in question:

$aptnDate2 = date('Y-m-d', $_POST['nextAppointmentDate']); 

throws the following error:

Notice: A non well formed numeric value encountered

so I var dump to make sure it's well formatted..


string(10) "12-16-2013"

The php docs state that it takes a timestamp not a string. but when I do:

date('Y-m-d', strtotime($_POST['nextAppointmentDate']));

and then var_dump the result, I get this:

string(10) "1969-12-31"

why can I not format a date with this date value and strtotime()?




From the documentation for strtotime():

Dates in the m/d/y or d-m-y formats are disambiguated by looking at the separator between the various components: if the separator is a slash (/), then the American m/d/y is assumed; whereas if the separator is a dash (-) or a dot (.), then the European d-m-y format is assumed.

In your date string, you have 12-16-2013. 16 isn't a valid month, and hence strtotime() returns false.

Since you can't use DateTime class, you could manually replace the - with / using str_replace() to convert the date string into a format that strtotime() understands:

$date = '2-16-2013';
echo date('Y-m-d', strtotime(str_replace('-','/', $date))); // => 2013-02-16
Wednesday, August 24, 2022

Because you are passing a string as the second argument to the date function, which should be an integer.

string date ( string $format [, int $timestamp = time() ] )

Try strtotime which will Parse about any English textual datetime description into a Unix timestamp (integer):

date("d", strtotime($_GET['start_date']));
Monday, November 28, 2022

You need to understand over here the date format of your date. Here m/d/Y is considered to be the standard American Date format.

So when your date is like

'09/06/2014',//it should be considered as 06 september 2014
'04/07/2014',//it should be considered as 07 april 2014

And when your date is like as


Then the above date doesn't fits within the standards of American Date Format i.e. m/d/Y instead what you can do over here is replace / along with - which converts your date into European Date Format which is d-m-Y

Friday, November 11, 2022

strtotime() works with US dates only:

The function expects to be given a string containing a US English date format and will try to parse that format into a Unix timestamp.

You would have to either rearrange the date format or use date_parse_from_format() (PHP 5.3+) to parse the UK style string.

Tuesday, December 6, 2022

This means that the second parameter for date() is expecting integer, so convert $row['posted'] to timestamp first.


$posted = date('d/m/Y H:i:s', strtotime($row['posted']));
Sunday, October 16, 2022
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