字符串过滤
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//字符串过滤function _filter($value,$rule="convertHTML"){ if(get_magic_quotes_gpc()) $value = stripslashes($value); switch($rule) { case "int": $value = intval($value); break; case "float": $value = floatval($value); break; case "noDoubleQuote": $value = str_replace("/"",""",$value); break; case "noSingleQuote": $value = str_replace("/"","'",$value); break; case "noQuotes": $value = str_replace(array("/"","'"),array(""","'"),$value); break; case "varName": $value = preg_replace("//W/","",$value); break; case "convertHTML": default: $value = htmlspecialchars($value,ENT_QUOTES); break; } return $value;}
