very simple convertion asp 2 php

Hello.
I need to use this code in asp to work in php.
I just can't figure it out alone.
Can anybody help me, please?

Code:

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posicaoHead = InStr(1, linha, "Te")
linha = Right(linha, Len(linha) - posicaoHead - 1)

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Thank you.

PHP Code:

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$posicaoHead = strpos($linha, 'Te');
$linha = substr($linha, -(strlen($linha) - $posicaoHead - 1)); 


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