php join函数应用

复制代码代码如下:
$key = array（）;
$val = array（）;
foreach （$_POST as $k=>$v）
{
$key[] = "`".strip_tags（mysql_real_escape_string（trim（$k）））."`";
$val[] = """.strip_tags（mysql_real_escape_string（trim（$v）））.""";
}

$keys = join（",",$key）;
$vals = join（",",$val）;