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增删改方法
电动机的博客
Original
1015 people have browsed it

实例

<?php

function con(){
		$dsn = 'mysql:host=127.0.0.1;dbname=students;charset=utf8;port=3308';
		$dbname = 'root';
		$dbpw   = 'root';
		try{
			$p = new PDO($dsn,$dbname,$dbpw);
		} catch (PDOException $e) {
			print_r($e->getMessage());
			exit;
		}
		return $p;
	}
  

	// 新增数据
   function inser($user,$field,$value) {
   	$c=con();
   	// $sql='insert into user(`id`,`name`,`sex` ,`age`,`grade`,`techer`,`mobilphone`,`address`)  VALUES (9,333,0,10,33,22,12331,2222222)';
    $sql = ' insert into ';
    $sql .=  $user ;
    $sql .= ' ( ';
    $sql .= $field ;
    $sql .= ' ) ';
    $sql .= ' VALUES ';
    $sql .= ' ( ';
    $sql .= $value ;
    $sql .= ' ) ';
   $a = $c->prepare($sql);
    $a->execute();
   $a->setFetchMode(PDO::FETCH_ASSOC);
   }
   inser('user','`id`,`name`,`sex` ,`age`,`grade`,`techer`,`mobilphone`,`address`',"10,'li',0,10,33,'liu','13289841454','江苏。。。。。'");

   //删除
   function del($user,$value) {
   	$c=con(); 	   	
     $sql='delete ';
     $sql.=' from ';
     $sql.=$user;
     $sql.=' where ';
     $sql.=$value;
     $a = $c->prepare($sql);
    $a->execute();
   $a->setFetchMode(PDO::FETCH_ASSOC);
     }
    
   del('user','`id` in (9,10)');
   //更新
   function update($user,$field,$values){
      	$c=con();
      	$sql='update ';
      	$sql.=$user;
      	$sql.=' set ';
        $sql.=$field;
        $sql.=' where ';
        $sql.=$values;
        $a = $c->prepare($sql);
    $a->execute();
   $a->setFetchMode(PDO::FETCH_ASSOC);
          }
       	
    update('user','`age`=30','`id`>2');
   
?>

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Correction status:Uncorrected

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