更改is_numeric以检查所有值

Question

I have this code:

foreach($feed['posts'][$i] as $key => $value)
{
  $sql[] = (is_numeric($value)) ? "`$key` = $value" : "`$key` = '" . "'";
}
$sqlclause = implode(",",$sql);

This works fine, but it only fills in the values that have a number. If I take the is_numeric or change it into ($value) or different variants of it, the query does completes, but no data is added to my MySQL database.

Answer 1

Maybe because you're not adding a value if the value is not numeric:

$sql[] = (is_numeric($value)) ? "`$key` = $value" : "`$key` = '" . $value . "'";
//                                                             ^^^^^^^^^^^^^^