本篇文章给大家分享的是有关使用php怎么不行一个Mysql操作类,小编觉得挺实用的,因此分享给大家学习,希望大家阅读完这篇文章后可以有所收获,话不多说,跟着小编一起来看看吧。
mysql.class.php
<?php
class mysql extends PDO{
public $server;
public $database;
public $user;
public $password;
public $sql;
public function __construct($server,$database,$user,$password,$port=3306){
$this->server = $server;
$this->database = $database;
$this->user = $user;
$this->password = $password;
parent::__construct("mysql:host=$server;port=$port;dbname=$database",$user,$password);
$this->query('SET NAMES utf8');
}
public function drop($table){
$sql = 'DROP TABLE '.$table.';';
$re = $this->query($sql);
if($re){
return true;
}else{
return false;
}
}
public function insert($table,$name,$value=null){
$sql = "INSERT INTO ".$table.'(';
if($value == null){
$arrname = array_keys($name);
$arrvalue = array_values($name);
}else{
$arrname = explode('|', $name);
$arrvalue = explode('|', $value);
}
for($i=0;$i<count($arrname);$i++){
if($i==count($arrname)-1){
$sql = $sql.$arrname[$i];
}else{
$sql = $sql.$arrname[$i].",";
}
}
$sql = $sql.")VALUES(";
for($i=0;$i<count($arrvalue);$i++){
if($i==count($arrvalue)-1){
$sql = $sql."'".$arrvalue[$i]."'";
}else{
$sql = $sql."'".$arrvalue[$i]."',";
}
}
$sql .=");";
$re = $this->query($sql);
if($re){
return true;
}else{
return false;
}
}
public function delete($table,$Conditionsname,$Conditionsvalue=null){
if($Conditionsvalue!=null){
$sql = "DELETE FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
}else{
$sql = "DELETE FROM ".$table." WHERE ";
$arrname = array_keys($Conditionsname);
$arrvalue = array_values($Conditionsname);
for($i=0;$i<count($arrname);$i++){
if($i==count($arrname)-1){
$sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
}else{
$sql.=$arrname[$i].'='."'".$arrvalue[$i]."',";
}
}
$sql.=';';
}
$re = $this->query($sql);
if($re){
return true;
}else{
return false;
}
}
public function select($table,$name,$Conditionsname,$Conditionsvalue=null){
if($Conditionsvalue!=null){
$sql = "SELECT ".$name." FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
}else{
$sql = "SELECT ".$name." FROM ".$table." WHERE ";
$arrname = array_keys($Conditionsname);
$arrvalue = array_values($Conditionsname);
for($i=0;$i<count($arrname);$i++){
if($i==count($arrname)-1){
$sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
}else{
$sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
}
}
$sql.=';';
}
$re = $this->query($sql);
$row = $re->fetch();
return $row[$name];
}
public function update($table,$name,$value,$Conditionsname,$Conditionsvalue=null){
if($Conditionsvalue!=null){
$sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ".$Conditionsname."='".$Conditionsvalue."';";
}else{
$sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ";
$arrname = array_keys($Conditionsname);
$arrvalue = array_values($Conditionsname);
for($i=0;$i<count($arrname);$i++){
if($i==count($arrname)-1){
$sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
}else{
$sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
}
}
$sql.=';';
}
$re = $this->query($sql);
if($re){
return true;
}else{
return false;
}
}
public function group($table,$name){
$sql = "SELECT ".$name." FROM ".$table.";";
$return = array();
$re = $this->query($sql);
while($row = $re->fetch(PDO::FETCH_ASSOC)){
array_push($return,$row[$name]);
}
return $return;
}
public function fetchall($sql){
$return = array();
$re = $this->query($sql);
while($row = $re->fetch(PDO::FETCH_ASSOC)){
array_push($return,$row);
}
return $return;
}
}
以上就是使用php怎么不行一个Mysql操作类,小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注天达云行业资讯频道。