Question

Is there a way to check what columns are there in mysql syntax?

For example,

$dbh = $db->query("SELECT * FROM table");
while($row = $dbh->fetchAll(PDO::FETCH_ASSOC))
{
$row['somecolumn'];
}

For instance, if there is or not somecolumn, I would like to find out if there is a way that will display a list of ALL the columns in the syntax I’m looking for in table

This way in the future, I’ll be able to check if there is $row['fr'] or $row['food'] that can work.

Thanks

Answer 1

You could simply check whether $row contains the key you need.

The PHP function array_key_exists will tell you whether $row contains the key you want. For instance, array_key_exists("fr", $row) will return true if $row contains an fr key.

If you want to see all the keys (i.e. all the columns), simply use array_keys; for example : array_keys($row) will give you all the keys in $row.

Alternatively, if you don’t mind another SQL call, you can use SELECT column_name FROM information_schema.columns WHERE table_name='your_table' as xdazz’s answer mentions.