Subir archivo con PHP:
Warning: Undefined array key "subir_archivo" in /home/fcan8725/public_html/upload.php on line 25
Warning: Trying to access array offset on value of type null in /home/fcan8725/public_html/upload.php on line 25
Warning: Undefined array key "subir_archivo" in /home/fcan8725/public_html/upload.php on line 28
Warning: Trying to access array offset on value of type null in /home/fcan8725/public_html/upload.php on line 28
La subida ha fallado