Just out of curiosity, does anyone know how the FILTER_VALIDATE_EMAIL flag works in filter_var? I assume it uses a regexp but mankind has long sought a perfect regexp for this task, I'd like to know what PHP is using.
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Okonomiyaki3000
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1See https://github.com/php/php-src/blob/master/ext/filter/logical_filters.c#L499 – mario Jul 11 '14 at 08:09
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1http://stackoverflow.com/a/3613613/3574819 – FuzzyTree Jul 11 '14 at 08:11