Kalenderscript koppelen aan db

("SELECT * FROM db WHERE datum = ".$_GET['click'])

("SELECT * FROM db WHERE datum = ".$_GET['click'])

if(ctype_digit($_GET['click'])) {
    $get = $_GET['click'];
} else {
    $get = 2007-00-00;
}

if(ctype_digit($_GET['click'])) {
    $get = $_GET['click'];
} else {
    $get = 2007-00-00;
}

<?php
if( preg_match("~\d{1,2}\-\d{1,2}\-\d{2,4}~" , $_GET['datum'] )  ) {
    
    //valid datum
    $query = mysql_query("SELECT * FROM kalender WHERE datum = '".$_GET['datum']."'");
    //verwerk de query

}

<?php
if( preg_match("~\d{1,2}\-\d{1,2}\-\d{2,4}~" , $_GET['datum'] )  ) {
 
    //valid datum
    $query = mysql_query("SELECT * FROM kalender WHERE datum = '".$_GET['datum']."'");
    //verwerk de query
 
}