$database→getPrimaryKey()
Get column(s) or info for given table’s primary key/index
By default it returns a string with the column name compromising the primary key, i.e. col1.
If the primary key is multiple columns then it returns a CSV string, like col1,col2,col3.
If you specify boolean true for the verbose option then it returns an simplified array of information about the primary key. If you specify integer 2 then it returns an array of
raw MySQL SHOW INDEX information.
Available since version 3.0.182.
Usage
// basic usage
$string = $database->getPrimaryKey(string $table);
// usage with all arguments
$string = $database->getPrimaryKey(string $table, $verbose = false);Arguments
| Name | Type(s) | Description |
|---|---|---|
$table | string | |
$verbose (optional) | bool int | Get array of info rather than column(s) string? Default:false |
Return value
string array
$database methods and properties
API reference based on ProcessWire core version 3.0.251