First of all Create a simple module or if you are having custom module you can also use that
Create a file
Setup/Patch/Data/AddPhoneAttribute.php
Enter your own Vendor\ModuleName in namespace
<?php
namespace VendorName\ModuleName\Setup\Patch\Data;
use Magento\Catalog\Ui\DataProvider\Product\ProductCollectionFactory;
use Magento\Customer\Model\Customer;
use Magento\Eav\Model\Config;
use Magento\Eav\Setup\EavSetupFactory;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Framework\Setup\Patch\DataPatchInterface;
use Magento\Framework\Setup\Patch\PatchRevertableInterface;
use Psr\Log\LoggerInterface;
class AddPhoneAttribute implements DataPatchInterface, PatchRevertableInterface
{
private $moduleDataSetup;
private $eavSetupFactory;
private $productCollectionFactory;
private $logger;
private $eavConfig;
private $attributeResource;
public function __construct(
EavSetupFactory $eavSetupFactory,
Config $eavConfig,
LoggerInterface $logger,
\Magento\Customer\Model\ResourceModel\Attribute $attributeResource,
\Magento\Framework\Setup\ModuleDataSetupInterface $moduleDataSetup
) {
$this->eavSetupFactory = $eavSetupFactory;
$this->eavConfig = $eavConfig;
$this->logger = $logger;
$this->attributeResource = $attributeResource;
$this->moduleDataSetup = $moduleDataSetup;
}
public function apply()
{
$this->moduleDataSetup->getConnection()->startSetup();
$this->addPhoneAttribute();
$this->moduleDataSetup->getConnection()->endSetup();
}
public function addPhoneAttribute()
{
$eavSetup = $this->eavSetupFactory->create();
$eavSetup->addAttribute(
\Magento\Customer\Model\Customer::ENTITY,
'phone_number',
[
'type' => 'varchar',
'label' => 'Phone Number',
'input' => 'text',
'required' => 1,
'visible' => 1,
'user_defined' => 1,
'sort_order' => 999,
'position' => 999,
'system' => 0
]
);
$attributeSetId = $eavSetup->getDefaultAttributeSetId(Customer::ENTITY);
$attributeGroupId = $eavSetup->getDefaultAttributeGroupId(Customer::ENTITY);
$attribute = $this->eavConfig->getAttribute(Customer::ENTITY, 'phone_number');
$attribute->setData('attribute_set_id', $attributeSetId);
$attribute->setData('attribute_group_id', $attributeGroupId);
$attribute->setData('used_in_forms', [
'adminhtml_customer',
]);
$this->attributeResource->save($attribute);
}
public static function getDependencies()
{
return [];
}
public function revert()
{
}
public function getAliases()
{
return [];
}
}
Create another file
view/frontend/layout/customer_account_create.xml
Change Vendorname_Modulename
with your own Vendor_Module
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
layout="1column"
xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceContainer name="form.additional.info">
<block class="Magento\Framework\View\Element\Template"
name="phone_number"
template="Vendorname_Modulename::extra_field.phtml"/>
</referenceContainer>
</body>
</page>
Create another file
view/frontend/templates/extra_field.phtml
<div class="field phone_number required">
<label class="label" for="phone_number">
<span><?= $block->escapeHtml(__('Phone number')) ?></span>
</label>
<div class="control">
<input type="text" name="phone_number" id="phone_number" value="" title="<?= $block->escapeHtmlAttr(__('Phone number')) ?>" class="input-text" data-validate="{required:true}">
</div>
</div>
Now run and field will added to your registration form
php bin/magento setup:upgrade && php bin/magento setup:di:compile
&& php bin/magento s:s:d -f && php bin/magento cache:flush