Question

我想归还col1_2,col2_2,col3_2,col4_2,col1_3,col2_3,col3_3,col4_3,col1_4_4_etc,以便我能将它用于其他职能。

So I made like this.

function _fields($keynum){
    for ($r=2; $r<$keynum; $r++){
        for($c=1; $c<5; $c++){
            $colname="col".$c."_".$r;
            return $colname.",";
        }
    }
}

function create(){
    if ($this->input->post( keynum )){
        $keynum=$this->input->post( keynum );
        $output = $this->_fields($keynum);
        $output=explode(",", $output);
        $data[ output ]=$output;
       ...
       ...

However function _fields() returns only col1_2. If I echo out instead of return $colname.","; It echo outs col1_2,col2_2,col3_2,col4_2. But this can t be used in function create().

I will be appreciate your input. Thanks in advance.

Answer 1

try something like

function _fields($keynum){
     $colname =   ;
    for ($r=2; $r<$keynum; $r++){
        for($c=1; $c<5; $c++){
            $colname .= "col".$c."_".$r;
        }
    }
    return  $colname;
}

http://codepad.viper-7.com/PJnEKu”rel=“nofollow> 此处为:

Answer 2

如果你想要使用<代码>_fields功能中生成的单列名称,你可以使用一个阵列而不是一个插图:

function _fields($keynum){
    $colname = array();
    for ($r=2; $r<$keynum; $r++){
        for($c=1; $c<5; $c++){
            $colname[] = "col".$c."_".$r;
        }
    }
    return  $colname;
}

Now you don t have to explode anything in your create function:

function create(){
    if ($this->input->post( keynum )){
        $keynum=$this->input->post( keynum );
        $output = $this->_fields($keynum);
        foreach ($output as $col){
          echo $col;
        }
       ...
       ...

友情链接