How to find out if the year is a leap year in PHP?

Question:

How do I know if the current year is a leap year in PHP?

Answer:

Another way is to use the date function with the L parameter which returns 1 if it is in a leap year, 0 otherwise.

Example for current year:

echo date('L');

For a specific year:

$ano = 2007;
$bissexto= date('L', mktime(0, 0, 0, 1, 1, $ano));
echo $ano . ' ' . ($bissexto? 'é' : 'não é') . ' um ano bissexto.';

See working on ideone .

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