Add Additional Objects to JSON Encoded Array - php

Question

I am currently using a JSON encoded array to display the users in my database for an auto-suggest feature.
It looks something like this:
$sth = mysql_query("SELECT id, name FROM users");
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['name'];
$json['id'] = $row['id'];
$data[] = $json;
}
print json_encode($data);
This returns:
[{"id":"81","name":"John Doe"},{"id":"82","name":"Jane Doe"}]
My question is somewhat 2-fold:
First, how would I manually add an additional object to this output? For example, let's say I wanted to add: {"id":"444","name":"A New Name"}
Thus, it'd look like:
[{"id":"81","name":"John Doe"},{"id":"82","name":"Jane Doe"},{"id":"444","name":"A New Name"}]
Second, let's say I also wanted to add more objects to the array from a separate table as well, such as:
$sth = mysql_query("SELECT id, title FROM another_table");
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['title'];
$json['id'] = $row['id'];
$data[] = $json;
}
print json_encode($data);
This way I could have both tables populated in the JSON array, thus, showing up as additional options in my autosuggest.
Hopefully this makes sense, as I've tried hard to articulate what I am trying to accomplish.
Thanks!

Answer 1

Just keep pushing to the $data array.
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['name'];
$json['id'] = $row['id'];
$data[] = $json;
}
$custom = array('name'=>'foo', 'id' => 'bar');
$data[] = $custom;
Then at the very end, do your json_encode. Assuming you're not referring to merging it in the JS itself with multiple ajax calls.
And if you have separate scripts, combine them in one php page.

Answer 2

Try in this way:-
$temp = json_encode($json); //$json={"var1":"value1","var2":"value2"}
$temp=substr($temp,0,-1);
$temp.=',"variable":"'.$value.'"}';

Answer 3

You could edit the JSON (text), but it's much easier to modify the array before you encode it.
Or am I missing something?

Answer 4

I'm not an expert in any of these fields, but I'll try and see if I can help. Try one of these:
Option 1 (I don't know how unions work in mysql):
$sth = mysql_query("SELECT id, name FROM users union SELECT id, name FROM (SELECT id, title as name from another_table) as T2");
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['name'];
$json['id'] = $row['id'];
}
$json['name'] = 'A new name';
$json['id'] = '444';
$data[] = $json;
print json_encode($data);
I've never done PHP, so I'm making assumptions. I've also never used MySql, so there's more assumptions.
Option 2:
$sth = mysql_query("SELECT id, name FROM users");
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['name'];
$json['id'] = $row['id'];
}
$sth = mysql_query("SELECT id, title from another_table");
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['title'];
$json['id'] = $row['id'];
}
$json['name'] = 'A new name';
$json['id'] = '444';
$data[] = $json;
print json_encode($data);
Hope this helps.