PHP foreach loop with checkboxes [closed]

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Hi i have a number of checkboxes in a form

<p>Select the modules you take:<br/>
Business <input type="checkbox" name="modules" value="Business"/><br />
Accounting <input type="checkbox" name="modules" value="Accounting"/><br />
Marketing <input type="checkbox" name="modules" value="Marketing" /><br />
</p>

I have a response page and expect the user to choose multiple answers so how would i use a foreach loop? I've tried the following but no hope

foreach($modules as $selected){
print "The modules were ".$modules;
}

Thanks in advance

Thanks, I needed to be sure. Many actually have those as their actual quotes and we often tell them that it will throw/cause an error. — Funk Forty Niner
– Funk Forty Niner, Commented May 1, 2015 at 14:22
Have you tried Stepashka's answer below? Plus, make sure you have form tags with a POST method. — Funk Forty Niner
– Funk Forty Niner, Commented May 1, 2015 at 14:28
@Fred-ii- my form is fine, i just want to avoid using the [] at the end of the names — spymaster
– spymaster, Commented May 1, 2015 at 14:34

Stepashka · Accepted Answer · 2015-05-01 14:15:39Z

6

Your checkboxes should have name with [] at the end. In this case they will automatically transform to array in PHP.

i.e.

<p>Select the modules you take:<br/>
Business <input type="checkbox" name="modules[]" value="Business"/><br />
Accounting <input type="checkbox" name="modules[]" value="Accounting"/><br />
Marketing <input type="checkbox" name="modules[]" value="Marketing" /><br />
</p>

php code:

echo "The modules were: "
foreach($_POST['modules'] as $selected) {
    echo $modules." ";
}

or as simple as

echo "The modules were: ".implode(", ", $_POST['modules']).".";

Please note that if user doesn't select any checkbox $_POST['modules'] will be undefined. You need to check it first before use. it is also a good practice to validate user's input before usage.

edited May 1, 2015 at 14:15

answered May 1, 2015 at 14:10

Stepashka

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5 Comments

spymaster Over a year ago

hi my names do not have square brackets at the end. How would i do it without them?

Muhammad Abdul-Rahim Over a year ago

You edit your code and add them in.

spymaster Over a year ago

@MariM i want to avoid using that method

Jay Blanchard Over a year ago

Why do you want to avoid that @spymaster. It is the only correct way to do it.

Stepashka Over a year ago

There is a low-level way of doing it... @spymaster you can get the raw post data using this advice stackoverflow.com/questions/8945879/… and parse it manually. Dat will contain something like '... &modules=Business&modules=Accounting& ...' But I do not see any reason why anybody want to do it in this simple case.

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