是否可以获取列名称,其中找到特定数据而不通过结果循环,可能是PDO?或者在mySQL中有另一种方法吗?
示例仅显示3列,但对于我的表格,我最多可能需要检查30列
如果我有一个表table1并想找到找到'x'的列
+----+------+------+------+
| id | Col1 | Col2 | Col3 |
+----+------+------+------+
| 0 | x | b | x |
| 1 | x | x | f |
| 2 | d | x | g |
| 3 | h | j | k |
+----+------+------+------+
currentyl我运行Select then循环到每一行,如果数据是'x'
,则检查每一行$query= "SELECT * FROM table1 WHERE (Col1='x' OR Col2='x' OR Col3='x')"
$result=mysql_query($query);
$foundCols = array();
$rowCnt = 0;
while ($row = mysql_fetch_assoc($result)) {
$tmpArr = array();
if ($row['Col1'] == 'x') {
$tmpArr[] = 'Col1';
}
if ($row['Col2'] == 'x') {
$tmpArr[] = 'Col2';
}
if ($row['Col3'] == 'x') {
$tmpArr[] = 'Col3';
}
$foundCols[$rowCnt] = $tmpArr;
$rowCnt = $rowCnt+1
}
谢谢
答案 0 :(得分:5)
试试这个:
while ($row = mysql_fetch_assoc($result)) {
...
foreach (array('Col1', 'Col2', 'Col3') as $key) {
if ($row[$key] == 'x') {
$tmpArr[] = $key;
}
}
...
}