How Can I Convert YYYY-MM-DD to DD-MM-YYYY Date Formats in PHP?

Converting Date Formats in PHP

Users often encounter the need to convert dates between different formats. In PHP, converting a date from YYYY-MM-DD to DD-MM-YYYY poses a challenge, as the date function expects a timestamp. Here's how to tackle this issue:

Using strtotime() and date() Functions

To convert the date format without relying on SQL, you can utilize the strtotime() and date() functions. This approach involves the following steps:

1. Use strtotime() to convert the original date string (e.g., "2010-03-21") into a Unix timestamp.
2. Use date() to format the timestamp into the desired output format (e.g., "d-m-Y").

$originalDate = "2010-03-21";
$newDate = date("d-m-Y", strtotime($originalDate));

// Output: 21-03-2010

Alternative Approach: DateTime Class

While the above solution is efficient for simple conversions, complex date manipulations require a more robust approach. Here, the DateTime class comes into play:

$dt = new DateTime($originalDate);
$newDateFormat = $dt->format("d-m-Y");

// Output: 21-03-2010

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