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我有一个问题,用sql作为值而不是名称本身提取列名称。显示动态结果PHP mySQL
因此,例如,返回结果显示
SELECT ll_project.project_id, ll_project.size, ll_lessons.lesson_title FROM ll_project INNER JOIN ll_lessons ON ll_project.project_id = ll_lessons.project_id WHERE ll_project.project_id = BSKYB5555
Unknown column 'BSKYB5555' in 'where clause'
从下面的代码
$pid = $_POST['project_id'] ;
$psize = $_POST['projectSize'] ;
$pdepts = $_POST['depts'] ;
$lstage = $_POST['stage'] ;
$ltype = $_POST['type'] ;
$impacted = $_POST['impacted'] ;
//Your columns in the DB
$columns = array('project_id'=>'ll_project.project_id','projectSize'=>'ll_project.size','depts'=>'ll_project.deptartment','stage'=>'ll_lessons.stage','type'=>'ll_lessons.type','impacted'=>'impacted');
$sqlString = null;
echo "Total Number Of Captured Post Variables is:";
echo count($_POST);
echo '<br />';
$number = 0;
$queryStr = "";
$preStr = array();
foreach ($_POST as $key => $val) {
if (!empty($_POST[$key])){
if(!is_array($_POST[$key]))
$currentStr = $columns[$key]." = ".$val;
else
$currentStr = $columns[$key]." IN (".implode(',',$_POST[$key]).")";
$preStr[] = $currentStr;
}
}
$queryStr = "SELECT ll_project.project_id, ll_project.size, ll_lessons.lesson_title FROM ll_project INNER JOIN ll_lessons ON ll_project.project_id = ll_lessons.project_id WHERE ".implode(' AND ',$preStr);
echo $queryStr;
echo '<br />';
if($number ==1) {
}else{
}
$result = mysql_query($queryStr) or die(mysql_error());
while($row = mysql_fetch_assoc($result)) {
echo ' <tr>
<td>'.$row['project_name'].' </td>
<td>'.$row['project_id']. '';
}
我在做什么错了,这是为什么拿起值作为列名?
你能告诉我一个例子?不确定报价应该在哪里?好吧,我看到她生病尝试 – Tazzy
SELECT是从动态查询生成的$ columns = array('project_id'=>'ll_project.project_id',etc ... 是否需要双引号' project_id'? – Tazzy
我最初并没有写信给查询,它是从$ columns = array keys和values中的动态查询中抓取的。 我没有办法将双引号放在“Number”的周围,如图所示当从$ queryStr回声; – Tazzy