http://a3147972.blog.51cto.com/2366547/1555169
<?php
class TestAction extends Action{
private $old_str='';
private $new_str=''
function index(){
set_time_limit(0);
$tableList=$this->getTables();
foreach($tableList as $k=>$v){
//如果没有数据则直接执行
if($this->getDataList($v)){
//获取表字段
$fieldList=$this->getFieldInfo($v);
$list=$this->db_replace($v,$fieldList);
dump($list);
}
}
}
private function getTables(){
$model=D('Api');
$tableList=$model->getTables(); //获取所有表名
//处理表名称
foreach($tableList as $k=>$v){
if(substr($v,0,strlen(C('DB_PREFIX')))!==C('DB_PREFIX'))
unset($tableList[$k]);
else
$tableList[$k]=str_replace(C('DB_PREFIX'),'',$v);
}
return $tableList;
}
//获取字段信息
private function getFieldInfo($table){
$model=D($table);
$list=$model->getDbFields();
return $list;
}
//查询表中是否有数据
private function getDataList($table){
$model=D($table);
$list=$model->select();
if($list)
return true;
else
return false;
}
//执行替换
private function db_replace($table,$field){
$tableName=C('DB_PREFIX').$table;
$field=$this->db_filter($field);
if(!empty($field)){
foreach($field as $k=>$v){
$sql="UPDATE `$tableName` SET `$v` = REPLACE ( `$v`, '$this->old_str', '$this->new_str' ); ";
if(M()->execute($sql))
$ok[]='替换完成，替换表为.'.$tableName.'|替换字段为'.$v.'<br />';
}
}
return $ok;
}
//字段过滤
private function db_filter($field){
$in=array('id','name','title','token','wecha_id','pid','level','uid');
foreach($field as $k=>$v){
if(in_array($v,$in)){
unset($field[$k]);
}
}
return $field;
}
}欢迎加群:252799167