fix some php8 warnings
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@ -15,7 +15,7 @@ class Af_Psql_Trgm extends Plugin {
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function save() {
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$similarity = (float) $_POST["similarity"];
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$min_title_length = (int) $_POST["min_title_length"];
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$enable_globally = checkbox_to_sql_bool($_POST["enable_globally"]);
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$enable_globally = checkbox_to_sql_bool($_POST["enable_globally"] ?? "");
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if ($similarity < 0) $similarity = 0;
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if ($similarity > 1) $similarity = 1;
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