来自mysql_fetch_array的数组，其中查询选择所有内容并未保存所有值

Question

So, I have a database (With a table called users) that let's users connect accounts, and it goes by their usernumber to find their accounts, let's say (With values):

Usernumber|Username|Email
-------------------------
1 | Justin | [e-mail]
2 | Test | [e-mail]
2 | Hi | [e-mail]
1 | Foo | [e-mail]
1 | Bar | [e-mail]

Now, in PHP, I do:

$stuff = mysql_fetch_array(mysql_query("SELECT * FROM users WHERE usernumber=1"));

Now, I do count($stuff); and it returns 14, all the time, whether I do it with usernumber one or two... I can't figure out the problem, but I was wondering if someone else sees it, or knows something that I don't about how certain files are configured (Limits or something?). I'm using XAMPP to test everything right now.

ALSO, when I do the $stuff in PHPMYADMIN as a SQL in the table, it does return all the values it should.

So question is: What am I missing and how do I get it return all the values and not just 2 rows? (The table has 7 columns).

Thanks, Justin W.

Answer 1

By default, mysql_fetch_array will return a combined indexed array of columns (0 - 6) and associative array (column_name => value)

That is why you have 14 values for that row (7 that are numerically indexed, 7 that are associatively indexed).

Also, you only get one row per function call. 14 is the number of columns (7 * 2), not the number of rows.

You need to start holding your MySQL result resource in its own variable:

$result = mysql_query("SELECT * FROM users WHERE usernumber=1");

That way you can call mysql_fetch_array multiple times on that resultset. Also, you can check the number of rows by calling mysql_num_rows($result)