PHP question about checkboxes

[fran]

Database Table: contacts

 

id | name |        email          |    c1    |  c2      |    c3    |    notify

1 |  Suzie | sue@email.com  |  a girl  |            |            |    Y

2 |  John  | john@email.com  |          |  a boy  |            |    Y

3 |  Uni    | uni@email.com    |          |            |  none  |    Y

 

form:

 

Send email to this type of people:

 

<input type=checkbox name=c1 value="a girl">

<input type=checkbox name=c2 value="none">

<input type=checkbox name=c3 value="a boy">

 

PHP:

 

$sql = "SELECT email FROM contacts WHERE notify = 'Y' AND (checkbox is checked);

 

 

How can I specify the fields that are checked?

[ldougherty]

I'm not sure I'm understanding.  If the data is already in the database ie notify field is Y meaning they wish to be notified then when sending emails or at least generating the email list you should just use

 

$sql = "SELECT email FROM contacts WHERE notify = 'Y' "

[fran]

Well, I want to email those who want to be notified but I also want to check off only certain ones.  IE: only "a boy" and "a girl" but not "none" as specified by the checked boxes.

[pengu]

Why not remove C1 C2 and C3 and call it sex. Then you can have "male" or "female"

 

Then change your options.

<form action="email-form.php" method="post">
<input type="checkbox" name="sex" value="female">Female
<input type="checkbox" name="sex" value="male">Male
</form>

 

$sql = "SELECT email FROM contacts WHERE notify = 'Y'  AND sex = 'male'";

[fran]

Ok, cool. So how do I write the query?

 

$sql = "SELECT email FROM contacts WHERE notify = 'Y' AND sex = 'a boy' AND sex = 'a girl');

 

 

[pengu]

It depends on what you want to do mate.

Go through http://w3schools.com/sql/default.asp this to learn SQL queries.

[haku]

Gotta restructure your database:

 

id | name |        email          |  sex    |    notify

1 |  Suzie | sue@email.com  |  girl  |      1

2 |  John  | john@email.com  |  boy  |      1

3 |  Uni    | uni@email.com    |          |      1

 

If you want to get the girls who want to be notified:

 

"SELECT email FROM contacts WHERE sex = 'girl' AND notify = 1"

 

If you want boys who want to be notified:

 

"SELECT email FROM contacts WHERE sex = 'boy' AND notify = 1"

 

If you want both sexes, you use

 

"SELECT email FROM contacts WHERE(sex = 'boy' OR sex = 'girl') AND notify = 1"

[megaresp]

If you want both sexes, you use

 

SELECT email FROM contacts WHERE(sex = 'boy' OR sex = 'girl') AND notify = 1

 

I've included a shorter version of the query because it's useful shorthand, especially when you have more then two OR alternatives:

 

SELECT email FROM contacts WHERE sex in ('boy','girl') AND notify = 1

 

You might also consider making sex a char(1) field and limit it to M or F