'How to create custom SOAP header with php classes

Can anyone please help me create or point me in the right direction to get the following SOAP header using PHP classes? 🙏

<SOAP-ENV:Header xmlns:wsa="http://www.w3.org/2005/08/addressing">
        <ns2:HTNGHeader xmlns:ns2="http://htng.org/1.1/Header/">
            <ns2:From>
                <ns2:systemId></ns2:systemId>
                <ns2:Credential>
                    <ns2:userName></ns2:userName>
                    <ns2:password></ns2:password>
                </ns2:Credential>
            </ns2:From>
        </ns2:HTNGHeader>
        <wsa:Action></wsa:Action>
        <wsa:To></wsa:To>
</SOAP-ENV:Header>


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