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我用sql查询数据，其中有一个查询条件是变量，请问下该如何调出变量值 呢，cms的sql语句必须在单引号中使用
{php $sql='SELECT * FROM dr_1_xiutu where "$titles" ORDER BY updatetime DESC'}
各位大神，求帮助
$sql='SELECT * FROM dr_1_xiutu where title like "%$titles%" ORDER BY updatetime DESC'
{php $sql=urlencode('SELECT * FROM dr_1_xiutu where title like "%$titles%" ORDER BY updatetime DESC');} {sql sql='$sql'}
SQL: SELECT * FROM dr_1_xiutu where title like "%$titles%" ORDER BY updatetime DESC
{php $sql=urlencode('SELECT * FROM dr_1_xiutu where title like "%'.$titles.'%" ORDER BY updatetime DESC');} {sql sql='$sql'}
{php $sql=urlencode('SELECT * FROM dr_1_xiutu where title like "%$titles%" ORDER BY updatetime DESC');} {sql sql='$sql'}{php $sql=urlencode('SELECT * FROM dr_1_xiutu where title like "%'.$titles.'%" ORDER BY updatetime DESC');} {sql sql='$sql'}