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PHP+JS實(shí)現(xiàn)批量刪除數(shù)據(jù)功能示例

更新時(shí)間：2017年11月02日 12:15:28 作者：網(wǎng)絡(luò)劍客

這篇文章主要介紹了PHP+JS實(shí)現(xiàn)批量刪除數(shù)據(jù)功能,結(jié)合實(shí)例形式分析了php結(jié)合js控制頁面元素的選中與提交,以及php操作mysql實(shí)現(xiàn)批量刪除功能的相關(guān)實(shí)現(xiàn)技巧,末尾還附帶了一個php數(shù)據(jù)庫操作類,需要的朋友可以參考下

本文實(shí)例講述了PHP+JS實(shí)現(xiàn)批量刪除數(shù)據(jù)功能。分享給大家供大家參考，具體如下：

表單

<form id="form2" name="form2" method="post" action="del_product.php" onsubmit="return checkF(this)">
<label>
<input type="checkbox" name="id[]" value="<?php echo $rs['id'];?>" style="background:none; border:none;" />
</label>
<div style="padding-left:20px;"><input type="button" value="全選" style="background:url(images/cheall.jpg) no-repeat; width:60px; height:23px; border:none;" onClick="selectBox('all')"/>
<input type="button" value="反選" style="background:url(images/cheall.jpg) no-repeat; width:60px; height:23px; border:none;" onClick="selectBox('reverse')"/>
<input type="submit" name="btnSave" style="background:url(images/cheall.jpg) no-repeat; width:60px; height:23px; border:none;" value="刪除"/></div>
</form>

JS

<script type="text/javascript" language="javascript">
    function selectBox(selectType){
    var checkboxis = document.getElementsByName("id[]");
    if(selectType == "reverse"){
      for (var i=0; i<checkboxis.length; i++){
        //alert(checkboxis[i].checked);
        checkboxis[i].checked = !checkboxis[i].checked;
      }
    }
    else if(selectType == "all")
    {
      for (var i=0; i<checkboxis.length; i++){
        //alert(checkboxis[i].checked);
        checkboxis[i].checked = true;
      }
    }
   }
</script>

del_product.php

<?php
include('checkadmin.php');
header('Content-Type: text/html; charset=utf-8');
if($_POST['btnSave']){
 if(empty($_POST['id'])){
    echo"<script>alert('必須選擇一個產(chǎn)品,才可以刪除!');history.back(-1);</script>";
    exit;
  }else{
/*如果要獲取全部數(shù)值則使用下面代碼*/
   $id= implode(",",$_POST['id']);
   $str="DELETE FROM `product` where id in ($id)";
   mysql_query($str);
  echo "<script>alert('刪除成功！');window.location.href='product_list.php';</script>";
}
}
?>

附：php實(shí)現(xiàn)的數(shù)據(jù)庫操作類

Db.php：

<?php
Class DB {
  private $link_id;
  private $handle;
  private $is_log;
  private $time;
  //構(gòu)造函數(shù)
  public function __construct() {
    $this->time = $this->microtime_float();
    require_once("config.db.php");
    $this->connect($db_config["hostname"], $db_config["username"], $db_config["password"], $db_config["database"], $db_config["pconnect"]);
    $this->is_log = $db_config["log"];
    if($this->is_log){
      $handle = fopen($db_config["logfilepath"]."dblog.txt", "a+");
      $this->handle=$handle;
    }
  }
  //數(shù)據(jù)庫連接
  public function connect($dbhost, $dbuser, $dbpw, $dbname, $pconnect = 0,$charset='utf8') {
    if( $pconnect==0 ) {
      $this->link_id = @mysql_connect($dbhost, $dbuser, $dbpw, true);
      if(!$this->link_id){
        $this->halt("數(shù)據(jù)庫連接失敗");
      }
    } else {
      $this->link_id = @mysql_pconnect($dbhost, $dbuser, $dbpw);
      if(!$this->link_id){
        $this->halt("數(shù)據(jù)庫持久連接失敗");
      }
    }
    if(!@mysql_select_db($dbname,$this->link_id)) {
      $this->halt('數(shù)據(jù)庫選擇失敗');
    }
    @mysql_query("set names ".$charset);
  }
  //查詢
  public function query($sql) {
    $this->write_log("查詢 ".$sql);
    $query = mysql_query($sql,$this->link_id);
    if(!$query) $this->halt('Query Error: ' . $sql);
    return $query;
  }
  //獲取一條記錄（MYSQL_ASSOC，MYSQL_NUM，MYSQL_BOTH）
  public function get_one($sql,$result_type = MYSQL_ASSOC) {
    $query = $this->query($sql);
    $rt =& mysql_fetch_array($query,$result_type);
    $this->write_log("獲取一條記錄 ".$sql);
    return $rt;
  }
  //獲取全部記錄
  public function get_all($sql,$result_type = MYSQL_ASSOC) {
    $query = $this->query($sql);
    $i = 0;
    $rt = array();
    while($row =& mysql_fetch_array($query,$result_type)) {
      $rt[$i]=$row;
      $i++;
    }
    $this->write_log("獲取全部記錄 ".$sql);
    return $rt;
  }
  //插入
  public function insert($table,$dataArray) {
    $field = "";
    $value = "";
    if( !is_array($dataArray) || count($dataArray)<=0) {
      $this->halt('沒有要插入的數(shù)據(jù)');
      return false;
    }
    while(list($key,$val)=each($dataArray)) {
      $field .="$key,";
      $value .="'$val',";
    }
    $field = substr( $field,0,-1);
    $value = substr( $value,0,-1);
    $sql = "insert into $table($field) values($value)";
    $this->write_log("插入 ".$sql);
    if(!$this->query($sql)) return false;
    return true;
  }
  //更新
  public function update( $table,$dataArray,$condition="") {
    if( !is_array($dataArray) || count($dataArray)<=0) {
      $this->halt('沒有要更新的數(shù)據(jù)');
      return false;
    }
    $value = "";
    while( list($key,$val) = each($dataArray))
    $value .= "$key = '$val',";
    $value .= substr( $value,0,-1);
    $sql = "update $table set $value where 1=1 and $condition";
    $this->write_log("更新 ".$sql);
    if(!$this->query($sql)) return false;
    return true;
  }
  //刪除
  public function delete( $table,$condition="") {
    if( empty($condition) ) {
      $this->halt('沒有設(shè)置刪除的條件');
      return false;
    }
    $sql = "delete from $table where 1=1 and $condition";
    $this->write_log("刪除 ".$sql);
    if(!$this->query($sql)) return false;
    return true;
  }
  //返回結(jié)果集
  public function fetch_array($query, $result_type = MYSQL_ASSOC){
    $this->write_log("返回結(jié)果集");
    return mysql_fetch_array($query, $result_type);
  }
  //獲取記錄條數(shù)
  public function num_rows($results) {
    if(!is_bool($results)) {
      $num = mysql_num_rows($results);
      $this->write_log("獲取的記錄條數(shù)為".$num);
      return $num;
    } else {
      return 0;
    }
  }
  //釋放結(jié)果集
  public function free_result() {
    $void = func_get_args();
    foreach($void as $query) {
      if(is_resource($query) && get_resource_type($query) === 'mysql result') {
        return mysql_free_result($query);
      }
    }
    $this->write_log("釋放結(jié)果集");
  }
  //獲取最后插入的id
  public function insert_id() {
    $id = mysql_insert_id($this->link_id);
    $this->write_log("最后插入的id為".$id);
    return $id;
  }
  //關(guān)閉數(shù)據(jù)庫連接
  protected function close() {
    $this->write_log("已關(guān)閉數(shù)據(jù)庫連接");
    return @mysql_close($this->link_id);
  }
  //錯誤提示
  private function halt($msg='') {
    $msg .= "\r\n".mysql_error();
    $this->write_log($msg);
    die($msg);
  }
  //析構(gòu)函數(shù)
  public function __destruct() {
    $this->free_result();
    $use_time = ($this-> microtime_float())-($this->time);
    $this->write_log("完成整個查詢?nèi)蝿?wù),所用時(shí)間為".$use_time);
    if($this->is_log){
      fclose($this->handle);
    }
  }
  //寫入日志文件
  public function write_log($msg=''){
    if($this->is_log){
      $text = date("Y-m-d H:i:s")." ".$msg."\r\n";
      fwrite($this->handle,$text);
    }
  }
  //獲取毫秒數(shù)
  public function microtime_float() {
    list($usec, $sec) = explode(" ", microtime());
    return ((float)$usec + (float)$sec);
  }
}
?>

config.db.php

<?php
  $db_config["hostname"] = "localhost"; //服務(wù)器地址
  $db_config["username"] = "root"; //數(shù)據(jù)庫用戶名
  $db_config["password"] = "123"; //數(shù)據(jù)庫密碼
  $db_config["database"] = "test"; //數(shù)據(jù)庫名稱
  $db_config["charset"] = "utf8";//數(shù)據(jù)庫編碼
  $db_config["pconnect"] = 1;//開啟持久連接
  $db_config["log"] = 1;//開啟日志
  $db_config["logfilepath"] = './';//開啟日志
?>

更多關(guān)于PHP相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《php+mysql數(shù)據(jù)庫操作入門教程》、《php+mysqli數(shù)據(jù)庫程序設(shè)計(jì)技巧總結(jié)》、《php面向?qū)ο蟪绦蛟O(shè)計(jì)入門教程》、《PHP數(shù)組(Array)操作技巧大全》、《php字符串(string)用法總結(jié)》及《php常見數(shù)據(jù)庫操作技巧匯總》

希望本文所述對大家PHP程序設(shè)計(jì)有所幫助。

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