I thought that my issue involved the PHP version my server had installed. I asked the host to upgrade me to 5.3 at least.
This upgrade worked…spottily. I could then get the format to change, mostly, but then I started having issues with the custom fields themselves; I would use the datepicker to choose a date, update the post, and the date would disappear. I would also get a fatal error: “Call to a member function format() on a non-object” on the posts that did have dates attached to the field. When I was lucky, the formats were changed perfectly (using the PHP code suggested on the DatePicker reference page on this site), but in the end I had to set the field to “text” instead of “datepicker” because I couldn’t guarantee success.
@cerulean or others like him/her – I’d definitely check to see what version of PHP your server is running. If it’s below 5.3 the “DateTime::createFromFormat” code won’t work. Upgrade and it might fix your issue!
@elliot, or others – can you point me to a piece of jQuery that you know works to change the datepicker format? And perhaps let me know what I need installed on my site as well (jQuery, jQuery UI, perhaps)?
Many thanks, Matt
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