Unfortunately I didn’t receive any reply. I did it a little different … and it works.
I just combine them both and I have that result which works fine.
add_action( 'user_profile_update_errors', 'validate_steamid_field' , 10, 3);
function validate_steamid_field(&$validation_errors, $update = null, &$user){
if ( isset( $_FILES['custom_avatar'] ) && !empty($_FILES['custom_avatar']) && file_exists($_FILES['custom_avatar']['tmp_name']) ) { //we check if there file is updated
$file_extension = substr($_FILES['custom_avatar']["name"], strrpos($_FILES['custom_avatar']["name"], '.') + 1); //get a file extension from name
$user_id = $user->ID; //get user ID;
$allowed_image_extension = array(
"png",
"jpg",
"jpeg"
); //all allowed type files which we want accept in the form
$fileinfo = @getimagesize($_FILES["custom_avatar"]["tmp_name"]);
$width = $fileinfo[0]; //get width of uploaded image
$height = $fileinfo[1]; //get height of uploaded image
if (! in_array(strtolower($file_extension), $allowed_image_extension)) {
$_FILES['custom_avatar'] == '';
$validation_errors->add( 'error', 'wrong format image');
//validate if is wrong format image
} else ($width < "450" || $height < "450"){
$_FILES['custom_avatar'] == '';
$validation_errors->add( 'error', 'image is too small');
//validate if image is too small
} else {
// There is not any error so we can save them here
if ( current_user_can( 'edit_user', $user_id ) ) {
update_user_meta($user_id,'custom_avatar', $_FILES['custom_avatar']['name']);
}
}
return $validation_errors;
}
I hope it will help somone in the future.