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copied!<p>This might help you:</p> <pre><code><form name="search_field" id="search_field" action="formpage.php" method="post" > <ul> <li><input type="checkbox" name="day[]" value="mon"/>Monday</li> <li><input type="checkbox" name="day[]" value="tue"/>Tueday</li> <li><input type="checkbox" name="day[]" value="wed"/>Wednesday</li> <li><input type="checkbox" name="day[]" value="thr"/>Thursday</li> <li><input type="checkbox" name="day[]" value="fri"/>Friday</li> <li><input type="checkbox" name="day[]" value="sat"/>Saturday</li> <li><input type="checkbox" name="day[]" value="sun"/>Sunday</li> </ul> <input type="submit" id="submit" name="submit" /> </form> </code></pre> <p>You can get the working result from this (For your better understanding):</p> <pre><code><form name="search_field" id="search_field" action="formpage.php" method="post" > <?php if(!$_POST == ''){ ?> <ul> <li><input type="checkbox" <?php if(in_array("mon", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="mon"/>Monday</li> <li><input type="checkbox" <?php if(in_array("tue", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="tue"/>Tueday</li> <li><input type="checkbox" <?php if(in_array("wed", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="wed"/>Wednesday</li> <li><input type="checkbox" <?php if(in_array("thr", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="thr"/>Thursday</li> <li><input type="checkbox" <?php if(in_array("fri", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="fri"/>Friday</li> <li><input type="checkbox" <?php if(in_array("sat", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="sat"/>Saturday</li> <li><input type="checkbox" <?php if(in_array("sun", $_POST['day'])) {?> checked="checked"<?php } ?> name="day[]" value="sun"/>Sunday</li> </ul> <input type="submit" id="submit" name="submit" /> </form> <?php print_r($_POST); ?> <?php } else { ?> <form name="search_field" id="search_field" action="formpage.php" method="post" > <ul> <li><input type="checkbox" name="day[]" value="mon"/>Monday</li> <li><input type="checkbox" name="day[]" value="tue"/>Tueday</li> <li><input type="checkbox" name="day[]" value="wed"/>Wednesday</li> <li><input type="checkbox" name="day[]" value="thr"/>Thursday</li> <li><input type="checkbox" name="day[]" value="fri"/>Friday</li> <li><input type="checkbox" name="day[]" value="sat"/>Saturday</li> <li><input type="checkbox" name="day[]" value="sun"/>Sunday</li> </ul> <input type="submit" id="submit" name="submit" /> </form> <?php } ?> </code></pre> <p>Just create the formpage.php file, paste the above code and check the result.</p>

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