How to get the check box value using POST method in PHP ?

[karthik baskar]

I have a check box for which a user can check many values . I need to get the value of the check box in a variable in PHP to insert it into the database . Please someone help me ..

[MartinBaril]

a checkbox can't have many value, it's ON or OFF. In php you don't receive unchecked checkbox.
exemple

Cat <input type="checkbox" name="pet[]" value="cat">
Dog <input type="checkbox" name="pet[]" value="dog">
Pig <input type="checkbox" name="pet[]" value="pig">
 

you will get an array of checked box. for exemple, you check cat and pig, you'll get for print_r($pet);

      Array
(
    [0] => cat
    [1] => pig
)

[Mohammad Shahid]

there are different ways to play with checkboxes using php, see below code

<?php
 
echo $_REQUEST['a']."<br />";
echo $_REQUEST['b']."<br />";
 
echo print_r($_REQUEST['c'])."<br />";
 
?>

<form action="" method="post">
  <input type="checkbox" name="a" value="a">
  <input type="checkbox" name="b" value="b">
  <input type="submit" name="Submit" value="Submit">
</form>

or

<form action="" method="post">
  <input type="checkbox" name="c[]" value="c1">
  <input type="checkbox" name="c[]" value="c2">
  <input type="submit" name="Submit" value="Submit">
</form>

[karthik baskar]

Thanks a lot :)