/**
* 数据库操作类
* 2011/8/25
* kcj
* */
class MyDB {
private $db_host; //数据库主机名
private $db_user; //数据库用户名
private $db_pwd; //数据库密码
private $db_database; //数据库名
private $conn; //连接标识
private $result; //执行query命令的结果资源标识
private $row; //返回的条目数
private $sql; //sql执行语句
private $coding; //数据库编码
private $bulletin=true; // 是否开启错误记录
private $show_error=false; //测试阶段,显示所有错误,具有安全隐患,默认关闭
private $is_error=false; //发现错误是否立即终止,默认true,建议不启用,因为当有问题时用户什么也看不到是很苦恼的
//构造函数
function __construct($db_host,$db_user,$db_pwd,$db_database,$conn,$doding){
$this->db_host=$db_host;
$this->db_user=$db_user;
$this->db_pwd=$db_pwd;
$this->db_database=$db_database;
$this->conn=$conn;
$this->coding=$coding;
$this->connect();
}
//数据库连接
public function connect(){
if($this->conn=="pconn"){
//永久连接
$this->conn=mysql_pconnect($this->db_host,$this->db_user,$this->db_pwd);
}else{
//即使连接
$this->conn=mysql_connect($this->db_host,$this->db_user,$this->db_pwd);
}
if(!mysql_select_db($this->db_database,$this->conn)){
if($this->show_error){
$this->show_error("数据库不可用:",$this->db_database);
}
}
}
//数据库执行语句,可执行查询添加修改删除等任何sql语句
public function query($sql){
if($sql==""){
$this->show_error("sql语句错误:","sql语句为空");
}
$this->sql=$sql;
$result=mysql_query($this->sql,$this->conn);
if(!$result){
if($this->show_error){
$this->show_error("错误sql语句:",$this->sql);
}
}else {
$this->result;
}
return $result;
}
//创建添加新的数据库
public function create_database($database_name){
$database=$database_name;
$sqlDatabase='create database'.$database;
$this->query($sqlDatabase);
}
//查询服务器所有数据库
//将系统数据库与用户分开,更直观的显示
public function show_database(){
$this->query("show databases");
echo "现在有的数据库:".$amount=$this->db_num_rows($rs);
echo "
";
$i=1;
while ($row=$this->fetch_array($rs)){
echo "$i $row[Database]";
echo "
";
$i++;
}
}
//以数组的形式返回主机中所有的数据库名
public function databases(){
$rsPtr=mysql_list_dbs($this->conn);
$i=0;
$cnt=mysql_num_rows($rsPtr);
while ($i
$rs[]=mysql_db_name($rsPtr,$i);
$i++;
}
return $rs;
}
//查询数据库下所有的表
public function show_tables($database_name){
$this->query("show tables");
echo "现有数据库:".$amount=$this->db_num_rows($rs);
echo "
";
$i=1;
while ($row=$this->fetch_array($rs)){
$columnName="Tables_in_".$database_name;
echo "$i $row[$columnName]";
echo "
";
$i++;
}
}
// 取得结果集
public function fetch_array($resultt=""){
if($resultt!=""){
return mysql_fetch_array($resultt);
}else {
return mysql_fetch_array($this->result);
}
}
//取得结果数 $row['content']
public function mysql_result_li(){
return mysql_result($str);
}
//获取关联数组 $row['字段名']
public function fetch_assoc(){
return mysql_fetch_assoc($this->result);
}
//获取数字索引数组 $row[0] $row[1] $row[2]
public function fetch_row(){
return mysql_fetch_row($this->result);
}
//获取对象数组,使用$row->content
public function fetch_Object(){
return mysql_fetch_object($this->result);
}
//简化查询select
public function findall($table){
$this->query("select* from $table");
}
//简化查询select
public function select($table,$columnName="*",$condition='',$debug=''){
$condition=$condition?'where'.$condition:null;
if($debug){
echo "select $columnName from $table $condition";
}else{
$this->query("select $columnName from $table $condition");
}
}
//简化删除del
public function delete($table,$condition,$url=''){
if($this->query("delete from $table where $condition")){
if(!emptyempty($url)){
$this->Get_admin_msg($url,'删除成功');
}
}
}
//简化插入insert
public function insert($table,$columnName,$value,$url=''){
if($this->query("insert into $table ($columnName) values ($value)")){
if(!emptyempty($url)){
$this->Get_admin_msg($url,'添加成功');
}
}
}
//简化更新update
public function update($table,$mod_content,$condition,$url=''){
if($this->query("update $table set $mod_content where $condition")){
if(!emptyempty($url)){
$this->Get_admin_msg($url);
}
}
}
//取得上一步insert操作的id
public function insert_id(){
return mysql_insert_id();
}
//指向确定的一条数据记录
public function db_data_seek($id){
if($id>0){
$id=$id-1;
}
if(!@mysql_data_seek($this->result,$id)){
$this->show_error("sql语句有误:","指定的数据为空");
}
return $this->result;
}
//根据select查询结果计算结果集条数
public function db_num_rows(){
if($this->result=null){
if($this->show_error){
$this->show_error("sql语句错误:","暂时为空,没有任何内容");
}
}else{
return mysql_num_rows($this->result);
}
}
//根据insert update delete执行的结果驱动影响行数
public function db_affected_rows(){
return mysql_affected_rows();
}
//输出显示sql语句
public function show_error($message="",$sql=""){
if(!$sql){
echo "" . $message . "";
echo "
";
}else{
echo "
echo "
";
}
//释放结果集
public function free(){
@mysql_free_result($this->result);
}
//数据库选择
public function select_db($db_database){
return mysql_select_db($db_database);
}
//查询字段数量
public function num_fields($table_name){
$this->query("select * from $table_name");
echo "
";
echo "字段数:".$total=mysql_num_fields($this->result);
for ($i=0;$i print_r(mysql_fetch_field($this->result,$i));
}
echo "";
echo "
";
}
//取得mysql 服务器信息
public function mysql_server($num=''){
switch ($num){
case 1:
return mysql_get_server_info();
break;
case 2:
return mysql_get_host_info();
break;
case 3:
return mysql_get_client_info();
break;
case 4:
return mysql_get_proto_info();
break;
default:
return mysql_get_client_info();
}
}
public function __destruct(){
if(!emptyempty($this->result)){
$this->free();
}
mysql_close($this->conn);
}
//获得客户端真实的ID地址
function getip() {
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) {
$ip = getenv("HTTP_CLIENT_IP");
} else
if (getenv("HTTP_X_FORWARDED_FOR") &&strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) {
$ip = getenv("HTTP_X_FORWARDED_FOR");
} else
if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) {
$ip = getenv("REMOTE_ADDR");
} else
if (isset ($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] &&strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) {
$ip = $_SERVER['REMOTE_ADDR'];
} else {
$ip = "unknown";
}
return ($ip);
}
}
?>
/**
* 数据库操作类
* 2011/8/25
* kcj
* */
class MyDB {
private $db_host; //数据库主机名
private $db_user; //数据库用户名
private $db_pwd; //数据库密码
private $db_database; //数据库名
private $conn; //连接标识
private $result; //执行query命令的结果资源标识
private $row; //返回的条目数
private $sql; //sql执行语句
private $coding; //数据库编码
private $bulletin=true; // 是否开启错误记录
private $show_error=false; //测试阶段,显示所有错误,具有安全隐患,默认关闭
private $is_error=false; //发现错误是否立即终止,默认true,建议不启用,因为当有问题时用户什么也看不到是很苦恼的
//构造函数
function __construct($db_host,$db_user,$db_pwd,$db_database,$conn,$doding){
$this->db_host=$db_host;
$this->db_user=$db_user;
$this->db_pwd=$db_pwd;
$this->db_database=$db_database;
$this->conn=$conn;
$this->coding=$coding;
$this->connect();
}
//数据库连接
public function connect(){
if($this->conn=="pconn"){
//永久连接
$this->conn=mysql_pconnect($this->db_host,$this->db_user,$this->db_pwd);
}else{
//即使连接
$this->conn=mysql_connect($this->db_host,$this->db_user,$this->db_pwd);
}
if(!mysql_select_db($this->db_database,$this->conn)){
if($this->show_error){
$this->show_error("数据库不可用:",$this->db_database);
}
}
}
//数据库执行语句,可执行查询添加修改删除等任何sql语句
public function query($sql){
if($sql==""){
$this->show_error("sql语句错误:","sql语句为空");
}
$this->sql=$sql;
$result=mysql_query($this->sql,$this->conn);
if(!$result){
if($this->show_error){
$this->show_error("错误sql语句:",$this->sql);
}
}else {
$this->result;
}
return $result;
}
//创建添加新的数据库
public function create_database($database_name){
$database=$database_name;
$sqlDatabase='create database'.$database;
$this->query($sqlDatabase);
}
//查询服务器所有数据库
//将系统数据库与用户分开,更直观的显示
public function show_database(){
$this->query("show databases");
echo "现在有的数据库:".$amount=$this->db_num_rows($rs);
echo "
";
$i=1;
while ($row=$this->fetch_array($rs)){
echo "$i $row[Database]";
echo "
";
$i++;
}
}
//以数组的形式返回主机中所有的数据库名
public function databases(){
$rsPtr=mysql_list_dbs($this->conn);
$i=0;
$cnt=mysql_num_rows($rsPtr);
while ($i $rs[]=mysql_db_name($rsPtr,$i);
$i++;
}
return $rs;
}
//查询数据库下所有的表
public function show_tables($database_name){
$this->query("show tables");
echo "现有数据库:".$amount=$this->db_num_rows($rs);
echo "
";
$i=1;
while ($row=$this->fetch_array($rs)){
$columnName="Tables_in_".$database_name;
echo "$i $row[$columnName]";
echo "
";
$i++;
}
}
// 取得结果集
public function fetch_array($resultt=""){
if($resultt!=""){
return mysql_fetch_array($resultt);
}else {
return mysql_fetch_array($this->result);
}
}
//取得结果数 $row['content']
public function mysql_result_li(){
return mysql_result($str);
}
//获取关联数组 $row['字段名']
public function fetch_assoc(){
return mysql_fetch_assoc($this->result);
}
//获取数字索引数组 $row[0] $row[1] $row[2]
public function fetch_row(){
return mysql_fetch_row($this->result);
}
//获取对象数组,使用$row->content
public function fetch_Object(){
return mysql_fetch_object($this->result);
}
//简化查询select
public function findall($table){
$this->query("select* from $table");
}
//简化查询select
public function select($table,$columnName="*",$condition='',$debug=''){
$condition=$condition?'where'.$condition:null;
if($debug){
echo "select $columnName from $table $condition";
}else{
$this->query("select $columnName from $table $condition");
}
}
//简化删除del
public function delete($table,$condition,$url=''){
if($this->query("delete from $table where $condition")){
if(!empty($url)){
$this->Get_admin_msg($url,'删除成功');
}
}
}
//简化插入insert
public function insert($table,$columnName,$value,$url=''){
if($this->query("insert into $table ($columnName) values ($value)")){
if(!empty($url)){
$this->Get_admin_msg($url,'添加成功');
}
}
}
//简化更新update
public function update($table,$mod_content,$condition,$url=''){
if($this->query("update $table set $mod_content where $condition")){
if(!empty($url)){
$this->Get_admin_msg($url);
}
}
}
//取得上一步insert操作的id
public function insert_id(){
return mysql_insert_id();
}
//指向确定的一条数据记录
public function db_data_seek($id){
if($id>0){
$id=$id-1;
}
if(!@mysql_data_seek($this->result,$id)){
$this->show_error("sql语句有误:","指定的数据为空");
}
return $this->result;
}
//根据select查询结果计算结果集条数
public function db_num_rows(){
if($this->result=null){
if($this->show_error){
$this->show_error("sql语句错误:","暂时为空,没有任何内容");
}
}else{
return mysql_num_rows($this->result);
}
}
//根据insert update delete执行的结果驱动影响行数
public function db_affected_rows(){
return mysql_affected_rows();
}
//输出显示sql语句
public function show_error($message="",$sql=""){
if(!$sql){
echo "" . $message . "";
echo "
";
}else{
echo "";
echo "
";
}
//释放结果集
public function free(){
@mysql_free_result($this->result);
}
//数据库选择
public function select_db($db_database){
return mysql_select_db($db_database);
}
//查询字段数量
public function num_fields($table_name){
$this->query("select * from $table_name");
echo "
";
echo "字段数:".$total=mysql_num_fields($this->result);
for ($i=0;$i print_r(mysql_fetch_field($this->result,$i));
}
echo "";
echo "
";
}
//取得mysql 服务器信息
public function mysql_server($num=''){
switch ($num){
case 1:
return mysql_get_server_info();
break;
case 2:
return mysql_get_host_info();
break;
case 3:
return mysql_get_client_info();
break;
case 4:
return mysql_get_proto_info();
break;
default:
return mysql_get_client_info();
}
}
public function __destruct(){
if(!empty($this->result)){
$this->free();
}
mysql_close($this->conn);
}
//获得客户端真实的ID地址
function getip() {
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) {
$ip = getenv("HTTP_CLIENT_IP");
} else
if (getenv("HTTP_X_FORWARDED_FOR") &&strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) {
$ip = getenv("HTTP_X_FORWARDED_FOR");
} else
if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) {
$ip = getenv("REMOTE_ADDR");
} else
if (isset ($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] &&strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) {
$ip = $_SERVER['REMOTE_ADDR'];
} else {
$ip = "unknown";
}
return ($ip);
}
}
?>
摘自 chaojie2009的专栏

phpisusedforsendendemailsduetoitsignegrationwithservermailservicesand andexternalsmtpproviders,自动化notifications andMarketingCampaigns.1)设置设置yourphpenvironcormentswironmentswithaweberswithawebserverserverserverandphp,确保themailfunctionisenabled.2)useabasicscruct

发送电子邮件的最佳方法是使用PHPMailer库。1)使用mail()函数简单但不可靠,可能导致邮件进入垃圾邮件或无法送达。2)PHPMailer提供更好的控制和可靠性,支持HTML邮件、附件和SMTP认证。3)确保正确配置SMTP设置并使用加密(如STARTTLS或SSL/TLS)以增强安全性。4)对于大量邮件,考虑使用邮件队列系统来优化性能。

CustomHeadersheadersandAdvancedFeaturesInphpeMailenHanceFunctionalityAndreliability.1)CustomHeadersheadersheadersaddmetadatatatatataatafortrackingandCategorization.2)htmlemailsallowformattingandttinganditive.3)attachmentscanmentscanmentscanbesmentscanbestmentscanbesentscanbesentingslibrarieslibrarieslibrariesliblarikelikephpmailer.4)smtppapapairatienticationaltication enterticationallimpr

使用PHP和SMTP发送邮件可以通过PHPMailer库实现。1)安装并配置PHPMailer,2)设置SMTP服务器细节,3)定义邮件内容,4)发送邮件并处理错误。使用此方法可以确保邮件的可靠性和安全性。

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

使用依赖注入(DI)的原因是它促进了代码的松耦合、可测试性和可维护性。1)使用构造函数注入依赖,2)避免使用服务定位器,3)利用依赖注入容器管理依赖,4)通过注入依赖提高测试性,5)避免过度注入依赖,6)考虑DI对性能的影响。

phperformancetuningiscialbecapeitenhancesspeedandeffice,whatevitalforwebapplications.1)cachingwithapcureduccureducesdatabaseloadprovesrovesponsemetimes.2)优化

ThebestpracticesforsendingemailssecurelyinPHPinclude:1)UsingsecureconfigurationswithSMTPandSTARTTLSencryption,2)Validatingandsanitizinginputstopreventinjectionattacks,3)EncryptingsensitivedatawithinemailsusingOpenSSL,4)Properlyhandlingemailheaderstoa


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