php - Show an Image from controller, base_url() error -


i want show button imagen inside, but, have problem, url of image contains "base_url()" mean...

<button type='button' class='btn btn-default btn-sm' id='deletelevel'          value='".$key->cmpusoid."'>     <img src='<?=base_url();?>static/images/delete.png' alt='borrar' title='borrar'> </button>

all code in controller, and, when paste in view, image doesn't exists :( view put static/images/delete.png instead of http://www.mycompany.com/project/static/images/delete.png

do know if possible show image way? or how have put url of image?

here code view file

 <button type='button' class='btn btn-default btn-sm' id='deletelevel'                     value='<?php echo $key->cmpusoid;?>'>    <img src='<?php echo base_url('static/images/delete.png'); ?>' alt='borrar' title='borrar'>  </button>

if need in controller then

 $button = '<button type="button" class="btn btn-default btn-sm" id="deletelevel"                      value="'.$key->cmpusoid.'">                 <img src="'.base_url("static/images/delete.png").'" alt="borrar" title="borrar">             </button>';

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