Use IS NULL operator for null value in where_link function
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@ -302,7 +302,7 @@ function where_check($val) {
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* @return string
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*/
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function where_link($i, $column, $value, $operator = "=") {
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return "&where%5B$i%5D%5Bcol%5D=" . urlencode($column) . "&where%5B$i%5D%5Bop%5D=" . urlencode($operator) . "&where%5B$i%5D%5Bval%5D=" . urlencode($value);
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return "&where%5B$i%5D%5Bcol%5D=" . urlencode($column) . "&where%5B$i%5D%5Bop%5D=" . urlencode((isset($value) ? $operator : "IS NULL")) . "&where%5B$i%5D%5Bval%5D=" . urlencode($value);
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}
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/** Set cookie valid for 1 month
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@ -336,7 +336,7 @@ if (!$columns) {
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}
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}
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foreach ($unique_array as $k => $v) {
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$link .= h(where_link($i++, $k, $v, (isset($v) ? "=" : "IS NULL")));
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$link .= h(where_link($i++, $k, $v));
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}
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}
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}
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