php - PDO bindParam right way? -


hey quick little question.

what better or safest way bind parameters, values , columns? i'v seen these 2 ways it, can't figure out difference is?

with :email , :email, $email

$stmt = $db->prepare( "select `email` `users` `email` = :email");         $stmt->bindvalue( ':email', $email );

or questionmark ?

$stmt = $db->prepare( "select `email` `users` `email` = :?");         $stmt->bindvalue( 1, $email );

no difference advantage more readable.

mysqli has ? not nice read when got many parameters

imagine this:

$stmt = $db->prepare( "call store_procedure ?,?,?,?,?,?,?,?,?,?");

it more error prone , hard debug


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