我想获取几个textarea字段的值并将它们保存到数据库中。现在我有四个具有不同的值,我想批量保存这些值,textarea字段是:
<textarea name="compedia[]"></textarea>
<textarea name="specification[]"></textarea>
和保存功能:
function saveCOA(){
$labref=$this->uri->segment(3);
$data= $this->input->post('compedia');
$data1= $this->input->post('specification');
$compedia=array(
'labref'=>$labref, //NDQA201303001
'compedia'=>$data,
'specification'=>$data1
);
foreach ($compedia as $value) {
$this->db->insert('coa_body',$value);
}
}
当我print_r($value)
返回时:
NDQA201303001
Array ( [0] => Alphy [1] => poxy [2] => alphy [3] => poxy )
Array ( [0] => poxy [1] => alphy [2] => poxy [3] => alphy )
当我尝试保存时,它返回:
A Database Error Occurred
Error Number: 1054
Unknown column 'NDQA201303001' in 'field list'
INSERT INTO `coa_body` (`NDQA201303001`) VALUES ('')
Filename: C:\xampp\htdocs\NQCL\system\database\DB_driver.php
Line Number: 330
语法应该如何循环遍历所有textarea值并立即将它们保存到数据库中?
答案 0 :(得分:2)
我希望
count($data) == count($data1); //Always True!
如果是这种情况,以下情况将起作用:
for ($i=0;$i<count($data);$i++) {
$insert_data = array(
'labref'=>$labref, //NDQA201303001 - Same for all the rows
'compedia'=>$data[$i],
'specification'=>$data1[$i]
);
$this->db->insert('coa_body',$insert_data);
}
检查此链接:CodePad.org
<小时/> 的更新强>: 建议Rcpayan:
//This will reduce number of context switching,
//even though loping is doubled!
for ($i=0;$i<count($data);$i++) {
$insert_data[$i] = array(
'labref'=>$labref, //NDQA201303001
'compedia'=>$data[$i],
'specification'=>$data1[$i]
);
}
$this->db->insert_batch('coa_body',$insert_data);
答案 1 :(得分:2)
你可以做这样的事情,它有点长,但也可以处理 compedia 和规范不相等。这个解决方案假设了一些事情:
NULL
或者,您可以更改循环以将值分配给数组,然后批量插入这些值。这可能会提供更好的性能。
$labref = $this->uri->segment(3);
$compedia_data = $this->input->post('compedia');
$specification_data = $this->input->post('specification');
//Calculate which array is larger, so we can loop through all values
$max_array_size = max(count($compedia_data), count($specification_data));
//Iterate through the arrays
for ($i = 0; $i < $max_array_size; $i++)
{
$this->db->set('labref', $labref);
//If we still have a value(s) for compedia, then assign the value, otherwise set to NULL
if array_key_exists($i, $compedia_data)
{
$this->db->set('compedia', $compedia_data[$i]);
}
else
{
$this->db->set('compedia', NULL);
}
//If we still have a value(s) for specification, then assign the value, otherwise set to NULL
if array_key_exists($i, $specification_data)
{
$this->db->set('specification', $specification_data[$i]);
}
else
{
$this->db->set('specification', NULL);
}
//Insert into table: 'coa_body'
$this->db->insert('coa_body');
}