retrieving an object from an array

[stuart]

Hi there,
I have an array of objects, and I would like to retreive one of the
objects based on a given key and value (ie. name='john'). Is this
possible and if so what is the syntax?

thanks
Stuart

[CountScubula]

Re: retrieving an object from an array

"stuart" <stuart_n@webob jectives.com.au > wrote in message
news:stuart_n-567E59.23521506 012004@news-vip.optusnet.co m.au...[color=blue]
> Hi there,
> I have an array of objects, and I would like to retreive one of the
> objects based on a given key and value (ie. name='john'). Is this
> possible and if so what is the syntax?
>
> thanks
> Stuart[/color]

yes and no, if your your array has keys like 'john' then yes,

other wise your question apears to be just like, can I retrieve an object
from an arrya based on mysocks=white. I am not truying to be mean, just
want you to understand how I see the question

I kinda need to know how name=john is tied into your array.

--
Mike Bradley
http://www.gzentools.com -- free online php tools

[Pedro Graca]

Re: retrieving an object from an array

stuart wrote:[color=blue]
> I have an array of objects, and I would like to retreive one of the
> objects based on a given key and value (ie. name='john'). Is this
> possible and if so what is the syntax?[/color]

Not sure I understand you correctly, but try this


<?php
// using @ to avoid "Notice: Creating default object from empty value in
// ..."
@$obj->name = 'Ann';
$obj->age = 7;
$arr[0] = $obj;
$obj->name = 'John';
$obj->age = 17;
$arr[1] = $obj;
$obj->name = 'Martha';
$obj->age = 15;
$arr[2] = $obj;

echo $arr[2]->name;
echo '<pre>'; print_r($arr); echo '</pre>';
?>


output is
Martha

Array
(
[0] => stdClass Object
(
[name] => Martha
[age] => 15
)

[1] => stdClass Object
(
[name] => Martha
[age] => 15
)

[2] => stdClass Object
(
[name] => Martha
[age] => 15
)

)
--
--= my mail box only accepts =--
--= Content-Type: text/plain =--
--= Size below 10001 bytes =--

[Remon Huijts]

Re: retrieving an object from an array

"stuart" <stuart_n@webob jectives.com.au > schreef in bericht
news:stuart_n-567E59.23521506 012004@news-vip.optusnet.co m.au...[color=blue]
> Hi there,
> I have an array of objects, and I would like to retreive one of the
> objects based on a given key and value (ie. name='john'). Is this
> possible and if so what is the syntax?
>
> thanks
> Stuart[/color]

Strange how different people seem to understand your question differently
(this is a hint!). This is what I think you absolutely propably need :)

for ($i = 0; $i < count($array); $i++) {
$object = $array[$i];
if ($object->name == 'john') break;
$object = NULL;
}

After this for loop $object contains the first object in the array with the
name 'john', or it is NULL if no object had that name. You can test that
very easily with the function is_null():

if (is_null($objec t)) {
echo 'I could not find an object with that name!';
}

Hope this helps.
Remon.