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Fix: avoid warning php strict mode
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@@ -4024,7 +4024,7 @@ function getCurrencySymbol($currency_code)
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$form->load_cache_currencies();
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if (function_exists("mb_convert_encoding") && is_array($form->cache_currencies[$currency_code]['unicode']) && ! empty($form->cache_currencies[$currency_code]['unicode']))
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if (function_exists("mb_convert_encoding") && isset($form->cache_currencies[$currency_code]) && is_array($form->cache_currencies[$currency_code]['unicode']) && ! empty($form->cache_currencies[$currency_code]['unicode']))
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{
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foreach($form->cache_currencies[$currency_code]['unicode'] as $unicode)
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{
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