How Can I Accurately Compare Non-Zero-Padded Dates in PHP?

Comparing Non-Zero-Padded Dates in PHP

When comparing dates in PHP, it's important to consider any formatting differences, particularly when dealing with non-zero-padded dates.

To compare today's date with a non-zero-padded date stored in a database, several approaches can be employed.

One method is to convert both dates into timestamps using the strtotime() function. This ensures fair comparison regardless of formatting:

$today = date("Y-m-d");
$expire = $row->expireDate; // from database

$today_time = strtotime($today);
$expire_time = strtotime($expire);

if ($expire_time < $today_time) { /* do Something */ }

Alternatively, if PHP 5.2.0 or later is available, the DateTime class can be used:

$today_dt = new DateTime($today);
$expire_dt = new DateTime($expire);

if ($expire_dt < $today_dt) { /* Do something */ }

By employing these techniques, accurate date comparisons can be made, ensuring that conditions based on date discrepancies are evaluated correctly.

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