How to Convert 'dd/mm/yyyy' Dates in PHP URLs to 'YYYY-MM-DD' Format?

Date Format Conversion in PHP URLs

In a PHP script, you're encountering an issue while converting a date passed through a URL from "dd/mm/yyyy" to "YYYY-MM-DD" format.

When using strtotime() to parse the date, it's crucial to ensure a valid datetime format. The "dd/mm/yyyy" format you're using is interpreted as US format, with the first two digits indicating the month, followed by the day and year.

However, when you pass dates that can be ambiguous (e.g., 04/12/2017 or 12/04/2017), strtotime() may give unexpected results because it assumes the month comes first.

To avoid these issues, it's recommended to use DateTime::createFromFormat() to parse the date and return a DateTime() object. This object allows you to convert the date to different formats or retrieve a Unix timestamp.

In your case, the following code will successfully convert the date:

<code class="php">$date = DateTime::createFromFormat('m/d/Y', '20/02/2000');
$D->query = $date->format('Y-m-d'); // Outputs: 2000-02-20</code>

Additionally, here are some tips to avoid similar issues:

• Use DateTime::createFromFormat() to parse dates with specific formats.
• Understand the potential ambiguities when using strtotime() with ambiguous date formats.
• See the PHP documentation on DateTime and DateTime::createFromFormat() for more information.

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