How do I ckeck if the column contains the $_POST of the form?

I have an issue with the following code :

$recherche = $_POST['recherche'];

$recherche = '%'.$recherche.'%';

$selecPrepare = self::$bdd->prepare("SELECT culmn where column LIKE '%{$recherche}%'");

$tab = array($_POST['recherche']);

$selecPrepare->execute($tab);

return $tab;

I’m sorry if someone asks the same question before, let me know if you find something about it.

Thanks.