Mysql Unicode

MySQL stores Unicode in either UCS2 or UTF8 encoding

BE CAREFUL
utf8_bin <> utf8_general_ci <> utf8_unicode_ci

these are true for both utf8_general_ci and utf8_unicode_ci
Ä = A
Ö = O
Ü = U

this is true for utf8_general_ci:
ß = s

this is true for utf8_unicode_ci:
ß = ss

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REFERRERS
MySql
PhpUnicode