PMPro Register Helper Upload File Example

upload-file-example-pmpro.php

<?php

//Copy lines 5 onwards into your PMPro Customizations plugin - http://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/

function my_pmprorh_init()
{
    //don't break if Register Helper is not loaded
    if(!function_exists("pmprorh_add_registration_field"))
    {
        return false;
    }
    //define the fields
    $fields = array();
    $fields[] = new PMProRH_Field(
        "my_image",              // input name, will also be used as meta key
        "file",                 // type of field
        array(
            "label"=>"My Image",
            "hint"=>"Recommended size is 100px X 100px",
            "profile"=>true,    // show in user profile
        ));

        $fields[] = new PMProRH_Field(
            "my_pdf",              // input name, will also be used as meta key
            "file",                 // type of field
            array(
                "label"=>"Upload PDF",
                "hint"=>"Please upload only .PDF files",
                "profile"=>true,    // show in user profile
            ));
    //add the fields into a new checkout_boxes are of the checkout page
    foreach($fields as $field)
        pmprorh_add_registration_field(
            "checkout_boxes", // location on checkout page
            $field            // PMProRH_Field object
        );
    //that's it. see the PMPro Register Helper readme for more information and examples.
}
add_action("init", "my_pmprorh_init");

@sharazghouri, you are able to use other conditional logic to hide this field if the user already has uploaded it. You can check against the user meta value of "my_image". If it's not empty, then don't display the field.

How to restrict maximum upload file size? for example, file should not be more than 2MB

To restrict the upload file size, you can set this inside your PHP settings.