正如我在标题中解释的那样,我想在我的php页面上创建一个sql查询,以返回存在变量函数的特定结果。 我的页面顶部有一个表单,有一些输入(日期,名称等等),当我点击时,我刷新了正确结果的页面。
目前我的语法是:
if (isset($_POST['dated']) && $_POST['dated'] != null){
$doleances = $bdd->prepare('SELECT * FROM doleance WHERE Priorite < 5 AND Date >= ? ORDER BY ID DESC');
$doleances->execute(array($newDate));
}
else if (isset($_POST['dated']) && $_POST['dated'] != null && isset($_POST['datef']) && $_POST['datef'] != null){
$doleances = $bdd->prepare('SELECT * FROM doleance WHERE Priorite < 5 AND Date BETWEEN ? AND ? ORDER BY ID DESC');
$doleances->execute(array($newDate, $newDate2));
}
else if{...}
else if{...}
...
但我认为有更好的方法可以做到这一点...... 提前致谢
答案 0 :(得分:3)
您可以使用“随用随身”方法:
// Create holders for the WHERE clauses and query parameters
$where = array(
"Priorite < 5" // this looks common across all queries?
);
$params = array();
// Now build it based on what's suppled:
if (!empty($_POST['dated'])){
if (!empty($_POST['datef'])){
// Add to the params list and include a WHERE condition
$params['startdate'] = $_POST['dated'];
$params['enddate'] = $_POST['datef'];
$where[] = "Date BETWEEN :startdate AND :enddate";
}
else{
// Add to the params list and include a WHERE condition
$params['date'] = $_POST['dated'];
$where[] = "Date >= :date";
}
}
else if { ... }
else if { ... }
// Now build and execute the query based on what we compiled together
// from above.
$sql = "SELECT * FROM doleance "
. (count($where) > 0 ? "WHERE " . implode(" AND ", $where) : "")
. " ORDER BY ID DESC";
$doleances = $bdd->prepare($sql);
$doleances->execute($params);
答案 1 :(得分:1)
首先创建一个可能发布的变量数组:
$possibleArgs = array( 'dated', 'datef' );
然后遍历每个$possibleArg
并检查相应的$_POST[possibleArg]
是否为空。如果它不为空,请将其添加到谓词中。