centos 5.5 +apache2.2.4+mysql5.1.47+php5.3.2-latest

function connect($hostInfo){
$link=mysql_connect($hostInfo['host'],$hostInfo['username'],$hostInfo['password']) or die("Mysql Connect Failed.");
mysql_set_charset($hostInfo['charset']);
mysql_select_db($hostInfo['dbname']);
return $link;
}

$arr=array(
"host"		=>	"localhost",
"username"	=>	"root",
"password"	=>	"111111",
"dbname"	=>	"test",
"charset"	=>	"utf8"
);
connect($arr);
if(connect($arr)){
echo "打开数据库成功。";
}else{
echo "打开数据库失败。";
}

$info=array(
"name"=>$_POST['name'],
"email"=>$_POST['email']
);
/**
* 插入函数封装的第一种方法，截取字符串得到需要的键值
* @param unknown $array
* @param unknown $table
* @return number
*/
function insert($array,$table){
foreach($array as $key=>$val){
$keys.=$key.",";
$vals.="'".$val."',";
}
$keys=substr($keys, 0, strrpos($keys,","));
$vals=substr($vals, 0, strrpos($vals, ","));
$query="insert into {$table}($keys) values({$vals})";
//echo $query;
mysql_query($query);
return mysql_insert_id();
}

if(insert($info, $table)){
echo "插入成功";
}else{
echo "插入失败";
}

/**
* 插入函数封装的第二种方法，连接数组值得到需要的键和值
* @param unknown $array
* @param unknown $table
* @return number
*/
function insert($array,$table){
$keys=join(",", array_keys( $array));
$vals="'".join("','", array_values($array))."'";
$query="insert into {$table}({$keys}) values({$vals})";
mysql_query($query);
return mysql_insert_id();
}

if(insert($info, $table)){
echo "Success";
}else{
echo "Failed";
}