数组声明

Question

I want an array to be declared like $value=array('apple'=>'red', 'mango'=>'yellow'). now i want this values to be fetched from the database. both the apple and the red. suppose this coloures are saved in table called 'colors' and fruits in the table 'fruits', with the color_id. now how to fetch them and put inside this array.

i tried to put the codes in side the bracket like array(code to fetch) but it did'nt work. anybody can help?

table->fruit(fruit_id, color_id, fruit_name) table-> color(color_id, color_name)

 $result=mysql_query("select * from
 fruit_table");
 while($row=mysql_fetch_array($result)){
     $row_color-mysql_fetch_array(mysql_query("select color_name from colors where
 color_id=$row['color_id']"));
 $val[]="$row['fruit_name']=>$row_color[color_name]";

 } 
$data=implode(",",$val);
 $value=array($data);

thanxx in advance.

Answer 1

There are two things you will have to do.

1. Perform a query to get the required information from the database.
2. Turn the result from the query into the format you want.

Here's some example code (assuming you have already made a successful connection to the database).

Assumptions I've made on your database schema are:

• You use id as the primary key in both tables
• name is the field that contains the color/fruit names

If they are correct it should work, otherwise minor adjustments are required to the query

$result = mysql_query('
    SELECT fruits.name as fruit, colors.name as color 
    FROM fruits 
    JOIN colors 
    ON fruits.color_id = color.id');

if (!$result) {
    die(mysql_error());
}

$value = array();

while ($row = mysql_fetch_assoc($result)) {
    $value[$row['fruit']] = $row['color'];
}

mysql_free_result($result);