Description:
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From manual page: http://www.php.net/filter.constants
---

Now "FILTER_DEFAULT" section is below.
> ID of default ("string") filter. This is equivalent to FILTER_UNSAFE_RAW.

This means
ID: FILTER_DEFAULT (0x0204)
Name: string

But, name of "FILTER_UNSAFE_RAW" constant is "unsafe_raw" and "string" is name of "FILTER_SANITIZE_STRING" 
on http://php.net/manual/en/filter.filters.sanitize.php

FILTER_DEFAULT is equivalent to FILTER_UNSAFE_RAW.
And are these names "unsafe_raw"? (Not"string")



Expected result:
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FILTER_DEFAULT (integer)
ID of default ("unsafe_raw") filter. This is equivalent to FILTER_UNSAFE_RAW.

Actual result:
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FILTER_DEFAULT (integer)
ID of default ("string") filter. This is equivalent to FILTER_UNSAFE_RAW.