将一些记录转换为逗号分隔的数组

Question

I have table like this:

table Database
+------+--------------+
| name | data         |
+------+--------------+
| foo  | certaindata1 |
| bar  | certaindata2 |
| foo  | certaindata3 |
+------+--------------+

and I want to output data for array values like: array('certaindata1','certaindata2','certaindata3')

I have try this

$sql = mysql_query("SELECT data FROM Database");
while($row=mysql_fetch_array($sql)){
     echo $row['data'];
}

and result is certaindata1certaindata2certaindata3
where array value should be 'certaindata1','certaindata2','certaindata3'

Answer 1

The result is expected. You're simply echoing $row['data']; without any spaces or newlines -- so the result will be certaindata1certaindata2certaindata3. If you want to store the results in an array, you can do the following:

while($row=mysql_fetch_array($sql)){
     $yourArray[] = $row['data']; //storing the $row['data'] in an array
}
$comma_separated = implode(',', $yourArray);
print_r($comma_separated);

Hope this helps!