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<?php $files = [ [ "name" => "testä.jpg" ], [ "name" => "test.jpg" ], [ "name" => "ä" ] ]; foreach ($files as $file) { $filename = $file['name']; if (!preg_match('/^[\w.-]+$/i', $filename)) { echo "Error for: $filename" . PHP_EOL; } else { echo "No error for: $filename" . PHP_EOL; } }
Output for git.master, git.master_jit, rfc.property-hooks
Error for: testä.jpg No error for: test.jpg Error for: ä

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