Decrypted code level 1:

eval(gzinflate(base64_decode('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')));

Decrypted code level 2:

eval(gzinflate(base64_decode('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')));
eval(gzinflate(base64_decode('U4mPNw8K8S8y8zP2LLVNSixONTOJT0lNzk9J1VBBltO0RuHaFpcUlRShKtFRD3M3DPU3SgzINPNITy1yCXIrzItU11GPzCt0C3IpSk33MMsMSDTyDzV0D1PXtE4tS8xBt6Q0rzi1BF0QAA==')));

Decrypted code level 3:

$__7RTOr6N3Iu='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';
$__7RTOr6N3Iu=base64_decode($__7RTOr6N3Iu);
$__7RTOr6N3Iu=strtr($__7RTOr6N3Iu,'VG1UO2aPi6HgerDRFqnY','YnqFRDregH6iPa2OU1GV');
eval($__7RTOr6N3Iu);
unset($__7RTOr6N3Iu);

Decrypted code level 4:

eval(gzinflate(base64_decode('BcFLcoIwAADQ46jjAkERmU4XAn4oCgkiBTadhASMUIINH8Pp+x4dUD0vJ9YUNeroHCNBt5sfQnNO6HxW5waO+HXc7x04vavdNwqt419wvjJLrld8XUSBatwwwtAlQyJNliilo4+5iJ22IeoI7r+vByBW9j5bRBrpE3YDSe0kga2DNB/3GiaCkZ0O/lCwZ/jRGK13C+Np5U6AwbK55SaKpclL1BW+qRyHZa2tN2Ny77dV6WR9b6qnUEahx4MNEJcpUVJIL0uhunrEfNLbd0xpSqnq8YqEqt1i5PLAcf0uy3jbAZc+h7CWXiWWwckBtSK0L233KrcvECGPgeyZH2yoa3aw0goZF+Phc7ZYLD7+AQ=='))); 

Decrypted code level 5:

eval(gzinflate(base64_decode('lc7bToMwAADQzxk8WaRBFrOHMiBy30o3fTO17SbabQIdvXy9iX/gD5wcsVDpnd1wPUmqhPdBZxHBdy7YjQtvdYCXXQpDa2Nbu2bdsid85PraOAibhn7pKSRVz0IzPiQgnSc9aVy9ogatfN9/Fv+l234wXUu6kgDZuu91GRyTRKoO4PsLzX/YQeL+s1I5TiNduCUbeeYee1KokdR1CpbaIoODINtZZoptPIejvRlyKks+OGDPl/s2J28qg6qPTaKiPZjcECQ52CO02fyVfwE='))); 

Decrypted code level 6:

eval(gzinflate(base64_decode('U4mPD43yy8yLzM9Nc7RVdwnMz44MMajwr3TKSc3xq/B0DsrwrwRKWAMA')));eval(gzinflate(base64_decode('U4mPD43yy8yLzM9Nc7RNSixONTOJT0lNzk9J1VBBltO0RuHaFpcUlRShKtFRD6wIzvEqdEz2STItqTLLD0vLyAxR11EPycxIC8s3qyoxTfJJdiz0ygmuCFTXtE4tS8xBt6Q0rzi1BF0QAA=='))); 

Decrypted code level 7:

$__UZNinYomfA='DQokYT0xOyBlelNxICRhOyA=';$__UZNinYomfA=base64_decode($__UZNinYomfA);$__UZNinYomfA=strtr($__UZNinYomfA,'QxSlJqAcLb5tz6oVfhiT','TihfVo6zt5bLcAqJlSxQ');eval($__UZNinYomfA);unset($__UZNinYomfA); 

$a=1; echo $a;