如何使用PDO处理数组？

Question

Lets pretend I've got some SQL and variables such as:

$number = 5;

And my PDO sql is:

SELECT * FROM things where ID = :number

Except, number is actually an array such as:

$number = array(1,2,3);

Which doesn't work out at all for

SELECT * FROM things where ID in ( :number )

How can I accomplish this with PDO? Presently I'm looping through the array, type-casting to int, and injecting the string to the SQL before I do any PDO binding on it.

Answer 1

The most common solution is to implode number (delimiting by a comma) and put the resulting string in to where in() without binding it as a param. Just be careful, you have to make sure it is safe for query, in this case.

Same thing here: Can I bind an array to an IN() condition?