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What is PDO::PARAM_INT;


spence911
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What's up guys! Can somebody please explain the meaning of PDO::PARAM_INT in the following statement:

$pdoStmt->bindValue(":num", $num, PDO::PARAM_INT);

I have already created a PDO Statement object called $pdoStmt. This line will bind the value of $num to the placeholder called :num. I know that PDO::PARAM_INT is a Predefined Constant but what does it do in this case? Thanx

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Just figured this out. Its a constant that ensures that the data returned is an integer(TINYINT, MEDIUMINT, BIGINT...) so that PDO can pass the correct data type to MySQL. PDO will also escape any quotes and other characters thereby preventing SQL injection.

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Which you could have found out rather quickly by reading about the 'bindvalue' statement in the MANUAL

 

It is simply amazing how so many would-be programming types visit forums with questions that are so easily answered with a little research  (aka, reading!) in the most appropriate place, namely, the manual. 

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