Question

我有这个使用LIKE和BETWEEN语句的mysql语句：

$stmt1 = $db->prepare("SELECT * FROM forsale WHERE `make` LIKE ? 
OR `model` LIKE ? AND `year` BETWEEN ? AND ? OR `price` BETWEEN ? 
AND ? LIMIT $start,$perpage");

$stmt1->execute(array($searchQuery1,$searchQuery2,$searchQuery3,
$searchQuery4,$searchQuery5,$searchQuery6));
$rows1 = $stmt1->fetchAll();

当我写下这样的陈述时：

$firstWorking = $db->prepare("SELECT * FROM forsale WHERE `make` LIKE ? 
OR `model` LIKE ? LIMIT $start,$perpage");

它工作正常，当我隔离BETWEEN时也是如此：

$secondWorking = $db->prepare("SELECT * FROM forsale WHERE `year` BETWEEN ? AND ? 
OR `price` BETWEEN ? AND ? LIMIT $start,$perpage");

所有LIKE语句都正常运行，但问题是当LIKE语句在它们前面时，BETWEEN语句不起作用。当我选择一个范围（例如1999-2008）时，不会返回任何结果，但是如果我选择具有指定模型或品牌的日期范围，它只显示模型和make的结果，忽略between语句。任何帮助表示赞赏！

Answer 1

我在编程方面比一年前更聪明。当$ _GET变量为空时，我必须构建一个自定义解决方案，它们将被替换为“%%”通配符或自定义int，例如开始年份的'1982'。这是答案::

    if(isset($_GET['selectMake'])){
    $selectMake = '%'.$_GET['selectMake'].'%';
    } else {
    $selectMake = '%%';
    }

    if(isset($_GET['selectModel'])){
    $selectModel = '%'.$_GET['selectModel'].'%';
    } else {
    $selectModel = '%%';
    }

    if(isset($_GET['engineType'])){
    $engineType = '%'.$_GET['engineType'].'%';
    } else {
    $engineType = '%%';
    }

    if(isset($_GET['transmission'])){
    $transmission = '%'.$_GET['transmission'].'%';
    } else {
    $transmission = '%%';
    }

    if(!empty($_GET['startYear'])){
    $startYear = $_GET['startYear']; 
    } else {
    $startYear = '1982';
    }

    if(!empty($_GET['endYear'])){
    $endYear = $_GET['endYear']; 
    } else {
    $endYear = '2099';
    }

    if(!empty($_GET['minPrice'])){
    $minPrice = $_GET['minPrice']; 
    } else {
    $minPrice = '5000.00';
    }

    if(!empty($_GET['maxPrice'])){
    $maxPrice = $_GET['maxPrice']; 
    } else {
    $maxPrice = '1000000.00';
    }
    $stmt1 = $db->prepare("SELECT * FROM forsale WHERE (`make` LIKE ? OR `model` LIKE ?) AND (`transmission` LIKE ?) AND (`year` BETWEEN ? AND ?) AND (`price` BETWEEN ? AND ?) AND (`engineType` BETWEEN ? AND ?) LIMIT ?,?");
    $stmt1->execute(array($selectMake,$selectModel,$transmission,$startYear,$endYear,$minPrice,$maxPrice,$minEngine,$maxEngine,$start,$perpage));
    $rows1 = $stmt1->fetchAll();

LIKE和BETWEEN的mysql语句不起作用

1 个答案: