i have some controller like this
<td colspan="8"><?php
echo form_open('c_kategorimaterial/addkategorimaterial');
echo form_submit('tambah','tambah');
echo form_close();
?></td>
then i copy paste them, then change into similiar controller that open different form
<td colspan="7"><?php
echo form_open('C_material/addmaterial');
echo form_submit('tambah','tambah');
echo form_close();
?></td>
why does the second controller is not working ?
edit : it works when i use
<td colspan="7">
<a href='<?php echo base_url(); ?>index.php/c_material/addmaterial'>Tambah</a>
</td>
why does the button is not working ?
