/**
$UpDown //移动方向,up或down
$table //表名
$id //当前移动的ID
$id_col //ID字段的名称
$oc_col //排序字段的名称
$where //条件
*/
function MoveUpDown( $UpDown , $table , $id , $id_col = ‘id‘ , $oc_col = ‘OrderColumn‘ , $where = ‘‘ )
{
if ( $UpDown == ‘up‘ ){ $op = ‘<‘ ; $desc = ‘desc‘ ;} else { $op = ‘>‘ ; $desc = ‘‘ ;}
if ( $where != ‘‘ ) $where = "$where and" ;
$rs =mysql_query( "select $id_col,$oc_col from $table where $where {$oc_col}{$op}=(select $oc_col from $table where $id_col=$id) order by $oc_col $desc limit 2" );
if ( $row =mysql_fetch_array( $rs )){ $id1 = $row [ $id_col ]; $oc1 = $row [ $oc_col ];}
if ( $row =mysql_fetch_array( $rs )){ $id2 = $row [ $id_col ]; $oc2 = $row [ $oc_col ];}
mysql_free_result( $rs );
if (isset( $id1 )){
mysql_query( "update $table set $oc_col= " . $oc2 . " where $id_col=$id1" );
}
if (isset( $id2 )){
mysql_query( "update $table set $oc_col= " . $oc1 . " where $id_col=$id2" );
}
echo "<script type=‘text/javascript‘>window.location.href=‘" . $_SERVER [‘PHP_SELF ‘]."‘ ;</script>"; exit ; //移动后刷新页面
}
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