Disallowed key character in codeigniter - php

Question

I have a view page.i have to edit a list of values.bt after submit i have an error disallowed character key.I cant find it how this error occur.
view
foreach($track_details->result() as $name) { ?>
<form class="form-horizontal" method="post" id="income_edit" action="<?php echo base_url();?>income_list_cntrl/update_income" enctype="multipart/form-data">
<input type="text" name="track_id" value="<?php echo $track_id; ?>" >
<div class="control-group">
<label class="control-label">Income Name</label>
<div class="controls">
<input type="text" class="span6 m-wrap" value="<?echo $name->income_name?>" name="income_name" id="income_name" readonly>
<?php echo form_error('income_name'); ?>
</div>
</div>
<div class="control-group">
<label class="control-label">Income Amount</label>
<div class="controls">
<input type="text" class="span6 m-wrap" value="<?echo $name->income_amount?>" name="income_amount" id="income_amount" >
<?php echo form_error('income_amount'); ?>
</div>
</div>
<div class="control-group">
<label class="control-label">Crop Quantity</label>
<div class="controls">
<input type="text" class="span6 m-wrap" value="<?echo $name->crop_quantity?>" name=crop_quantity" id="crop_quantity" >
<?php echo form_error('crop_quantity'); ?>
</div>
</div>
<div class="control-group">
<label class="control-label">Per Rate</label>
<div class="controls">
<input type="text" class="span6 m-wrap" value="<?echo $name->per_rate?>" name=per_rate" id="per_rate" >
<?php echo form_error('per_rate'); ?>
</div>
</div>
<div class="control-group">
<label class="control-label">Choose a client</label>
<div class="controls">
<select class="span6 m-wrap" name="select_client" >
<? foreach ($client_details->result() as $var) { ?>
<option <?php if($name->client_id == $var->client_id) { ?> selected="selected" <? } ?> value="<?echo $var->client_id;?>"><?echo $var->client_name;?></option>
<?}?>
</select>
<?php echo form_error('select_client'); ?>
</div>
</div>
<div class="form-actions">
<button type="submit" class="btn green" id="Submit">Submit</button>
</form>
<?}?>
controller
After removing the crop quantity and per rate no error but dont edit it.
public function update_income(){
$this->form_validation->set_error_delimiters('<div style="color:#B94A48">', '</div>');
//$this->form_validation->set_rules('income_name', 'Income name', 'required');
$this->form_validation->set_rules('income_amount', 'Income Amount', 'required');
$this->form_validation->set_rules('crop_quantity', 'Crop Quantity', 'required');
$this->form_validation->set_rules('per_rate', 'Per Rate', 'required');
$this->form_validation->set_rules('select_client', 'Client Name', 'required');
if ( $this -> form_validation -> run() === FALSE ){
$this->index();
} else {
$track_id=$this->input->post('track_id');
$income_name=$this->input->post('income_name');
$income_amount=$this->input->post('income_amount');
$crop_quantity=$this->input->post('crop_quantity');
$per_rate=$this->input->post('per_rate');
$client_name=$this->input->post('select_client');
$this->load->model('income_edit_model');
$data = array(
'income_name'=>$income_name,
'income_amount'=>$income_amount,
'crop_quantity'=>$crop_quantity,
'per_rate'=>$per_rate,
'client_name'=>$client_name,
);
$result=$this->income_edit_model->update_track_income($data,$track_id);
// redirect(base_url().'income', 'refresh');
}
}

Answer 1

Two problems:
First: Missing <?php open tags. Look through this and change <? to <?php
<select class="span6 m-wrap" name="select_client" >
<? foreach ($client_details->result() as $var) { ?>
<option <?php if($name->client_id == $var->client_id) { ?> selected="selected" <? } ?> value="<?echo $var->client_id;?>"><?echo $var->client_name;?></option>
<? } ?>
</select>
Second: Missing closing </div
<div class="form-actions">
<button type="submit" class="btn green" id="Submit">Submit</button>
<!-- MISSING </div> HERE -->
</form>