PHP应用：Thinkphp批量更新数据的方法汇总

//批量修改 data二维数组 field关键字段 参考ci 批量修改函数 传参方式
function batch_update($table_name='',$data=array(),$field=''){
if(!$table_name||!$data||!$field){
return false;
}else{
$sql='UPDATE '.$table_name;
}
$con=array();
$con_sql=array();
$fields=array();
foreach ($data as $key => $value) {
$x=0;
foreach ($value as $k => $v) {
if($k!=$field&&!$con[$x]&&$x==0){
$con[$x]=" set {$k} = (CASE {$field} ";
}elseif($k!=$field&&!$con[$x]&&$x>0){
$con[$x]=" {$k} = (CASE {$field} ";
}
if($k!=$field){
$temp=$value[$field];
$con_sql[$x].= " WHEN '{$temp}' THEN '{$v}' ";
$x++;
}
}
$temp=$value[$field];
if(!in_array($temp,$fields)){
$fields[]=$temp;
} 
}
$num=count($con)-1;
foreach ($con as $key => $value) {
foreach ($con_sql as $k => $v) {
if($k==$key&&$key<$num){
$sql.=$value.$v.' end),';
}elseif($k==$key&&$key==$num){
$sql.=$value.$v.' end)';
}
}
}
$str=implode(',',$fields);
$sql.=" where {$field} in({$str})";
$res=M($table_name)->execute($sql);
return $res;
}
//测试
function test(){
$update_array=array();
for ($i=2; $i <7 ; $i++) { 
$data=array();
$data['id']=$i;
$data['memeber_type']=2;
$data['memeber_type_state']=1;
$update_array[]=$data;
}
$res=$this->batch_update('yl_member',$update_array,id);
var_dump($res);
}

UPDATE categories 
SET display_order = CASE id 
WHEN 1 THEN 3 
WHEN 2 THEN 4 
WHEN 3 THEN 5 
END
WHERE id IN (1,2,3)

UPDATE categories 
SET display_order = CASE id 
WHEN 1 THEN 3 
WHEN 2 THEN 4 
WHEN 3 THEN 5 
END, 
title = CASE id 
WHEN 1 THEN 'New Title 1'
WHEN 2 THEN 'New Title 2'
WHEN 3 THEN 'New Title 3'
END
WHERE id IN (1,2,3)

$display_order = array( 
1 => 4, 
2 => 1, 
3 => 2, 
4 => 3, 
5 => 9, 
6 => 5, 
7 => 8, 
8 => 9 
); 
$ids = implode(',', array_keys($display_order)); 
$sql = "UPDATE categories SET display_order = CASE id "; 
foreach ($display_order as $id => $ordinal) { 
$sql .= sprintf("WHEN %d THEN %d ", $id, $ordinal); 
} 
$sql .= "END WHERE id IN ($ids)"; 
echo $sql;

/*
* @param $saveWhere ：想要更新主键ID数组
* @param $saveData ：想要更新的ID数组所对应的数据
* @param $tableName : 想要更新的表明
* @param $saveWhere : 返回更新成功后的主键ID数组
* */
public function saveAll($saveWhere,&$saveData,$tableName){
if($saveWhere==null||$tableName==null)
return false;
//获取更新的主键id名称
$key = array_keys($saveWhere)[0];
//获取更新列表的长度
$len = count($saveWhere[$key]);
$flag=true;
$model = isset($model)?$model:M($tableName);
//开启事务处理机制
$model->startTrans();
//记录更新失败ID
$error=[];
for($i=0;$i<$len;$i++){
//预处理sql语句
$isRight=$model->where($key.'='.$saveWhere[$key][$i])->save($saveData[$i]);
if($isRight==0){
//将更新失败的记录下来
$error[]=$i;
$flag=false;
}
//$flag=$flag&&$isRight;
}
if($flag ){
//如果都成立就提交
$model->commit();
return $saveWhere;
}elseif(count($error)>0&count($error)<$len){
//先将原先的预处理进行回滚
$model->rollback();
for($i=0;$i<count($error);$i++){
//删除更新失败的ID和Data
unset($saveWhere[$key][$error[$i]]);
unset($saveData[$error[$i]]);
}
//重新将数组下标进行排序
$saveWhere[$key]=array_merge($saveWhere[$key]);
$saveData=array_merge($saveData);
//进行第二次递归更新
$this->saveAll($saveWhere,$saveData,$tableName);
return $saveWhere;
}
else{
//如果都更新就回滚
$model->rollback();
return false;
}
}

public function test(){
//要更新的数据表的主键数组
$where['ID']=array(70,73,74,80,83);
//ID主键数组对应的待更新数据
$save=array(
array('School'=>'DK Univisity01','isExport'=>0),
array('School'=>'DK Univisity02','isExport'=>0),
array('School'=>'DK Univisity03','isExport'=>0),
array('School'=>'DK Univisity04','isExport'=>0),
array('School'=>'','isExport'=>0),
// array('School'=>' Univisity05','isExport'=>0),
);
$f=$this->saveAll($where,$save,'want');
if(count($f['ID'])>0){
//返回更新成功的ID数组
echo "This is success :</br>";
dump($f);
echo 'ok';
}else{
//更新失败操作
echo "This is failed :</br>";
dump($f);
echo 'error';
}
}