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如何从表中将数据从一个函数传递到另一个函数

[英]How to pass the fetch data from table from one function to another function in php

我在mysql中有一个名为tab2的表。 它包含名称和电话字段。

我创建了一个名为gettabledata()的函数:

function gettabledata()
{
    $data = array();

    $query = mysql_query("SELECT * FROM tab2");
    $row = mysql_fetch_assoc($query);
     //Here I am unable to get that how can I pass the fetched data in row 
    //  variable to anywhere this function called.
 //  After update:
     return $row;
}
if(isset($_POST['action']))
{
       $gettab = createtable();//calling the function gettabledata

       //Here I want to get the all data from that table
     // After doing Update:
      foreach($gettab as $row){
        echo $row['name'];
        echo $row['phone'];
     }

}

更新后,我收到警告,例如:

`
Warning: Illegal string offset 'name' in E:\xampp\htdocs\practive\csvtest.php on line 29

Notice: Uninitialized string offset: 0 in E:\xampp\htdocs\practive\csvtest.php on line 29

Warning: Illegal string offset 'phone' in E:\xampp\htdocs\practive\csvtest.php on line 30

Notice: Uninitialized string offset: 0 in E:\xampp\htdocs\practive\csvtest.php on line 30

Warning: Illegal string offset 'name' in E:\xampp\htdocs\practive\csvtest.php on line 29
0
Warning: Illegal string offset 'phone' in E:\xampp\htdocs\practive\csvtest.php on line 30 `

另外在做print_r($gettab) ,我得到了:

Array ( [name] => [phone] => 0 ) 

它只是表中的第一条记录。

帮我解决这个问题。感谢您的期待。

您只需要在末尾添加return语句即可

gettabledata()

使用return语句修改函数,如下所示。

    function gettabledata()
    {
        $query = mysql_query("SELECT * FROM tab2");
        $row = mysql_fetch_assoc($query);

        return $row;
    }

    if(isset($_POST['action']))
    {
         $row_arr = gettabledata();//calling the function gettabledata

         foreach($row_arr as $row){
            echo $row['id'];
         }

     }

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