PHP检查浏览器参数防止被SQL注入的函数

<p>function inject_check($content){</p>
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                	$check=eregi('select|insert|update|delete|\'|\/\*|\*|\.\.\/|\.\/|union|into|load_file|outfile',$content);<br />	if($check){<br />		//echo "你输入的内容有可能对本站造成危害！";<br />		return true;<br />	}else{<br />		return false;<br />	}<br />}