PHP is one of useful script languages to access database.
To use PHP, you need to install server then ready to create end-user interface.
One of interesting application is the form with uploading file. You will find
such kind of form in website nowadays. Before taking further step, first thing
is to configure the "php.ini" file. What is php.ini? You may wonder
about this file and how to find or create it. Basically, php.ini is
configuration file that identifies PHP to server. With this file, server and
database recognize PHP as script.
Create HTML Form
with Uploading File Section
1. HTML form
Firstly, you
need to create the HTML form. There are many variations of uploading form
depends on what kind of file, user, or purpose that want to be obtained. PHP
works in server side, but the form will be pathway to connect end-user with
server. The form should have several things such button, warning sign, loading
file, etc.
2. PHP script
Form is ready
and the next step is to create the Upload File PHP Script. When user clicks the
button, the form will display file management in device. This process uses PHP
to load properly. Loading file manager only appears from end user, but
developer needs to create specific PHP file that's responsible to upload the
action. It is called upload.php that contains script to access file, determine
file size, check the file, and give sign for failed or success action. The
functions of upload file will be explored in the next section.
3. Checking file
PHP lets
end-user to upload any file as long as they meet requirement. However,
developer needs script to check whether the file is already uploaded or not.
When file is ready, the message will appear to inform and vice versa. Check if
file already exists then website is able to process it.
4. File size
The thing to do
is to determine maximum of file. For example, you need to write 500000 when
maximum file size is 500 kb. When users try to upload more than this number,
error message will be appeared. Sometimes, warning can be seen via progressing
bar that stops immediately. File size is important for administrator. To make
sure you create limit file size in good ways, it is better to use integer
number. Each of websites have their own limitation, but developer should create
friendly system to make users understand easily.
5. File type
Another
important thing is file type. Teacher may create website to collect exam from
student. Moreover, the file should be in document. Video provider allows users
to upload file in mp4 only. Both are the example of importance of file type. To
limit file type, you need to specify in upload.php. Experts recommend making
form with common file type. For example, picture or photo should be gif, jpg,
or png. Document will have file type such as doc, rtf, or pdf.
6. Last task
To complete
Upload File PHP Script, you need to check whether this file works properly or
not. Start from uploading form, file size, file type, and then check
availability of file in server. After everything is done, upload file is ready
to integrate into website or HTML script.
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