choose rows where 10 columns - php

Question

I want to get a rows using one string, but this string is used to validate more than 1 column, exactly 5, for example
-----------------------------------------------
| id | code | 1 | 2 | 3 | 4 | 5 |
-----------------------------------------------
| 01 | Number | 5 | 7 | 10 | 21 | 1 |
| 02 | String | v | q | s | f | w |
| | | | | | | |
| | | | | | | |
| | | | | | | |
-----------------------------------------------
I want to make SELECT mysqli where using 5 columns ( 1, 2, 3, 4, 5 ) if i use looping method, it will waste a lot of time
i have tried the problem with this code
$value = "q";
for ($x = 1; $x <= 5; $x++) {
$cek = mysqli_query($con,"SELECT * FROM table where $x='$value' and id='02'")
if(mysqli_num_rows($cek) == 1) {
echo "success";
} else {
echo "fail";
}
}
I use this code successfully, but the process is too long
is there an easier and more practical way to overcome this problem? thank you

Answer 1

As has been pointed out in comments, your database design is sub-optimal. You may want to reconsider and change it. Also, having column names be 1, 2, etc. is a very bad idea. At least have them start with a letter. Better yet, give them some reasonable names indicating what data those columns actually contain.
Now, assuming you figured out what your column names should really be, you can use a simple IN operator to get your data. The usual/common way of using it is
WHERE some_column IN ('value1', 'value2', ...)
Yet, there's nothing preventing you from using it the other way around:
WHERE 'some_value' IN (column1, column2, ...)
This way, your SQL statement becomes something like this:
SELECT *
FROM table
WHERE '$value' IN (column1, column2, column3, column4, column5)
AND id='02'
Now, if you have your column names in an array, you can do it this way:
$testColumns = ['column1', 'column2', 'column3', 'column4', 'column5'];
$value = "q";
$inColumns = implode(',', $testColumns);
$sql = "SELECT * FROM table WHERE '$value' IN ($inColumns) AND id='02'";
$cek = mysqli_query($con, $sql);
UPDATE: If your column names are non-standard, e.g. the aforementioned 1, 2, etc., or have spaces in them, then simple implode will not work, because you need to back-quote each column name. In that case, you would need something like this:
$inColumns = implode(',', array_map(function($c) { return "`$c`"; }, $columns));