<form method="post" action="">
    <input type="checkbox" name='programlama_dili[]' value="php"> php<br/>
    <input type="checkbox" name='programlama_dili[]' value="java"> java <br/>
    <input type="checkbox" name='programlama_dili[]' value="c#"> c# <br/>
    <input type="submit" value="submit" name="gonder_arslan_parcasi">
</form>

<?php
if(isset($_post['gonder_arslan_parcasi'])){
    if(!empty($_post['programlama_dili'])) {
        foreach($_post['programlama_dili'] as $dil){
            echo $dil.' ';
        }
    }
}
?>