自己封装的Mysql简易操作类,已塞在Ben框架中,基于PDO来写的,代码风格上有些无厘头。。。
mysql.class.php
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<?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 ;
}
}
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