Php 致命错误:调用未定义的方法CI_DB_mysql_driver::group_start()
我正在开发codeigniter php web应用程序。我有这样的错误: 致命错误:在第31行的C:\wamp\www\CI\u sock\application\models\customer\u m.php中调用未定义的方法CI\u DB\u mysql\u driver::group\u start() 如何解决这个问题。下面是我的Php 致命错误:调用未定义的方法CI_DB_mysql_driver::group_start(),php,codeigniter,Php,Codeigniter,我正在开发codeigniter php web应用程序。我有这样的错误: 致命错误:在第31行的C:\wamp\www\CI\u sock\application\models\customer\u m.php中调用未定义的方法CI\u DB\u mysql\u driver::group\u start() 如何解决这个问题。下面是我的PHP代码: foreach ($this->column_search as $item) // loop column {
PHP
代码:
foreach ($this->column_search as $item) // loop column
{
if($_POST['search']['value']) // if datatable send POST for search
{
if($i===0) // first loop
{
$this->db->group_start(); // open bracket. query Where with OR clause better with bracket. because maybe can combine with other WHERE with AND.
$this->db->like($item, $_POST['search']['value']);
}
else
{
$this->db->or_like($item, $_POST['search']['value']);
}
if(count($this->column_search) - 1 == $i) //last loop
$this->db->group_end(); //close bracket
}
$i++;
}
共有31行$this->db->group_start()代码>像这样
请帮我解决这个问题。试试这个方法
$this->db->group_start();
$this->db->or_group_start();
foreach ($this->column_search as $item) // loop column
{
if($_POST['search']['value']) // if datatable send POST for search
{
$this->db->or_like($item, $_POST['search']['value']);
}
}
$this->db->or_group_end();
$this->db->group_end();
注意:我现在无法选中“执行此代码”请尝试这种方法
$this->db->group_start();
$this->db->or_group_start();
foreach ($this->column_search as $item) // loop column
{
if($_POST['search']['value']) // if datatable send POST for search
{
$this->db->or_like($item, $_POST['search']['value']);
}
}
$this->db->or_group_end();
$this->db->group_end();
注意:我现在无法选中“执行此代码”我有此问题的解决方案,请将您的代码更改为以下内容:
if($_POST['search']['value']) // if datatable send POST for search
{
if($i===0) // first loop
{
// $this->db->group_start(); // open bracket. query Where with OR clause better with bracket. because maybe can combine with other WHERE with AND.
$this->db->like($item, $_POST['search']['value']);
}
else
{
$this->db->or_like($item, $_POST['search']['value']);
}
if(count($this->column_search) - 1 == $i); //last loop
// $this->db->group_end(); //close bracket
}
我有此问题的解决方案,请将您的代码更改为:
if($_POST['search']['value']) // if datatable send POST for search
{
if($i===0) // first loop
{
// $this->db->group_start(); // open bracket. query Where with OR clause better with bracket. because maybe can combine with other WHERE with AND.
$this->db->like($item, $_POST['search']['value']);
}
else
{
$this->db->or_like($item, $_POST['search']['value']);
}
if(count($this->column_search) - 1 == $i); //last loop
// $this->db->group_end(); //close bracket
}
可以尝试在foreach之前应用group_start(),在循环之后应用group_end吗?请使用代码。我不是codeigniter中的express。这取决于您想要如何对它们进行分组,也有或_group可分别用于分组或条件>或_group_start()->where('b','b')->where('c','c')->group_end()
请为这些示例写下它。我想要完整的代码。你能试着在foreach之前应用group_start(),在循环之后应用group_end吗?请用代码剪切。我不是codeigniter中的express。这取决于您想要如何对它们进行分组,也有或_group可分别用于分组或条件>或_group_start()->where('b','b')->where('c','c')->group_end()
请为这些示例写下它。我想要完整的代码。如果你评论$this->db->group_start();如果您注释$this->db->group_start(),则会产生错误的结果;它会产生错误的结果