Error after upgrade to 2.4.4

[bartoszcoye941]

I have own plugin running on version 2.4.1, now i want to upgrade to 2.4.4 and i have a problem with config page.

               <field id="public_key" translate="label" type="textarea" sortOrder="60" showInDefault="1"
                           showInWebsite="1"
                           showInStore="0">
                        <label>Public key</label>
                        <frontend_model>Burka\Pay\Block\Adminhtml\System\Config\Field\Readonly</frontend_model>
                        <backend_model>Burka\Model\Adminhtml\Keys\PublicKey</backend_model>
                    </field>

And my Readonly class is simple 

class Readonly extends Field
{
    /**
     * @param AbstractElement $element
     *
     * @return string
     */
    public function _getElementHtml(AbstractElement $element): string
    {
        $element->setData('readonly', 1);

        return $element->getElementHtml();
    }
}

And now on version 2.4.4 i got error

<style>.highlighted { background-color: #DFF7FF!important; }</style>
<form action="http://localhost/admin/admin/system_config/save/key/7f44c4fb5c8ac1e094c29dee1efccff6ae7be5e8b3dc1096248a9479be251d9b/section/payment/" method="post" id="config-edit-form"
      enctype="multipart/form-data">
    <div><input name="form_key" type="hidden" value="hmoK6HIBVhGfeWHH" /></div>
    <div class="accordion">
        ParseError: syntax error, unexpected token "readonly", expecting identifier in /bitnami/magento/app/code/Burka/Block/Adminhtml/System/Config/Field/Readonly.php:12
Stack trace:

[Ankit Jasani]

Hi @bartoszcoye941 ,

Change class name from Readonly to another name like Burkareadonly.

Seems issue occurs because of PHP 8.1 annotation incompatible with PHP 8.1

Problem Solved? Accept as Solution!

Hope it helps!

Thanks

[gallwasingdbb8]

---

@bartoszcoye941 CFAHome wrote:

I have own plugin running on version 2.4.1, now i want to upgrade to 2.4.4 and i have a problem with config page.

               <field id="public_key" translate="label" type="textarea" sortOrder="60" showInDefault="1"
                           showInWebsite="1"
                           showInStore="0">
                        <label>Public key</label>
                        <frontend_model>Burka\Pay\Block\Adminhtml\System\Config\Field\Readonly</frontend_model>
                        <backend_model>Burka\Model\Adminhtml\Keys\PublicKey</backend_model>
                    </field>

And my Readonly class is simple 

class Readonly extends Field
{
    /**
     * @param AbstractElement $element
     *
     * @return string
     */
    public function _getElementHtml(AbstractElement $element): string
    {
        $element->setData('readonly', 1);

        return $element->getElementHtml();
    }
}

And now on version 2.4.4 i got error

<style>.highlighted { background-color: #DFF7FF!important; }</style>
<form action="http://localhost/admin/admin/system_config/save/key/7f44c4fb5c8ac1e094c29dee1efccff6ae7be5e8b3dc1096248a9479be251d9b/section/payment/" method="post" id="config-edit-form"
      enctype="multipart/form-data">
    <div><input name="form_key" type="hidden" value="hmoK6HIBVhGfeWHH" /></div>
    <div class="accordion">
        ParseError: syntax error, unexpected token "readonly", expecting identifier in /bitnami/magento/app/code/Burka/Block/Adminhtml/System/Config/Field/Readonly.php:12
Stack trace:

---

I appreciate the information and advice you have shared. I will try to figure it out for more.