cats/functions/clearDatabase.php

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PHP
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2013-01-19 18:38:58 +00:00
<?php
function clearDatabase(){ // Alle Fragen die keine Antworten besitzen werden gel<65>scht
$sql="SELECT q_id FROM questions WHERE active='".intval(0)."'";
$query = mysql_query($sql) OR die(mysql_error());
while($q_id= mysql_fetch_array( $query,MYSQL_BOTH )){
$q_id= $q_id['q_id'];
$sql_number="SELECT a_id FROM answers WHERE q_id='".intval($q_id)."' ";
$query_number = mysql_query( $sql_number);
$menge=mysql_num_rows($query_number);
if($menge ==0){
$sql_del="DELETE FROM questions WHERE q_id='".intval($q_id)."'";
$query_del = mysql_query($sql_del);
// statistiken bereingien
$sql_del_statistics="DELETE FROM statistics WHERE q_id='".intval($q_id)."'";
$ok_statistics=mysql_query( $sql_del_statistics);
// answers_incorrect bereinigen
$sql_del_aIncorrect="DELETE FROM answers_incorrect WHERE q_id='".intval($q_id)."'";
$ok_aIncorrect=mysql_query( $sql_del_aIncorrect);
//Beschreibung l<>schen
$sql_del_desc="DELETE FROM question_description WHERE q_id='".intval($q_id)."'";
$ok_desc=mysql_query( $sql_del_desc);
}
}
}
?>