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<?php

echo (checkdate(4, 30, 2005)?"Date Correcte<br/>":"Date incorrecte<br/>");

echo (checkdate(2, 30, 2000)?"Date Correcte<br/>":"Date incorrecte<br/>");

echo (checkdate(13, 020, 2011)?"Date Correcte<br/>":"Date incorrecte<br/>");

?>