apache/php/oci automatically replaces unicode characters with a question mark - how?
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Replace unicode escape sequences in a string
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Removing unicode \u2026 like characters in a string in python2.7
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Java URL encoding of query string parameters
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Change the default codepage from latin1 to utf8 on a linux machine
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How to remove URI encoding from file names?
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Why are usernames allowed to be composed entirely of non-visible Unicode characters?
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Matching Unicode letter characters in PCRE/PHP
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URL encoding the space character: + or %20?
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How do I capture utf-8 decode errors in node.js?
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Non-ASCII characters in external links
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Eliminating Unicode accents in Apex
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What is the best way to remove accents (normalize) in a Python unicode string?
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What is the "?" symbol in URL used for in php?
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characters in login screen replaced by question marks
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Program to check/look up UTF-8/Unicode characters in string on command line?
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How to decode something beginning with "\u" with PHP