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When I input data such as : Œ, œ, Ÿ, ... , ,ドル ≤, ≥, ∞, ≈, ≠, – , — , ‐ , ‐ , ‹ ›, " ", ‘ ’ And then try to access data from the $_REQUEST['some_value'] I get this as my output

1⁄4, 1⁄2, 3⁄4, … , ¤, ≤, ≥, ∞, ≈, ≠, – , — , ‐ , ‑ , ‹ ›, “ ”, ‘ ’

What exactly is happening here?