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<?php function isBinary(string $data): bool { return ! mb_check_encoding($data, 'UTF-8'); } echo "Text:\n"; var_dump(isBinary('')); var_dump(isBinary('Some Content')); var_dump(isBinary('Sóme Cotént')); var_dump(isBinary('这是一些内容')); var_dump(isBinary('Αυτό είναι κάποιο περιεχόμενο')); var_dump(isBinary(' תוכן מסוים')); var_dump(isBinary('Это некоторое содержимое')); var_dump(isBinary('هذا بعض المحتوى')); var_dump(isBinary('هこれは一部のコンテンツです')); echo "Binary:\n"; var_dump(isBinary("\xC3\x28")); var_dump(isBinary("\xE0\xA0")); var_dump(isBinary("\xF0\x90\0")); var_dump(isBinary("\xF5\x80\x80\x80")); var_dump(isBinary("\xF4\x90\x80\x80"));
Output for git.master, git.master_jit, rfc.property-hooks
Text: bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) Binary: bool(true) bool(true) bool(true) bool(true) bool(true)

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