limit JSON results using php - php

Question

I am facing with a problem that my json results cannot be limited..
My json result contains a large number of data, I just want to limit the results so that i can print some of the data in my view page. How can i do that?
Here is my code
$post1 = file_get_contents("........");
$products = CJSON::decode($post1, true);
for($i=1;$i<=5;$i++)
{
echo "<pre>";print_r($products);
}
This code prints all the contents. Please help me with this ,waiting for the response.
Output of $products.
Array
(
[0] => Array
(
[id] => 4380
[title] => 13 Thirteen Patch
[barcode] => PAT-2288
[qty] => 17
[url] => http://www.heygidday.biz/13-thirteen-motorcycle-club-mc-fun-embroidered-quality-new-biker-patch-pat-2288.html
[retail_price] => 4.99
[category] => Array
(
[id] => 1
[name] => SMALL PATCHES
)
[bin] => Array
(
[id] => 1
[name] => A1
)
[images] => Array
(
[0] => Array
(
[small] => http://www.heygidday.biz/portal//timthumb.php?src=/files/products/pat-2288-013678719880.jpg&w=30
[middle] => http://www.heygidday.biz/portal//timthumb.php?src=/files/products/pat-2288-013678719880.jpg&w=100
[source] => http://www.heygidday.biz/portal/files/products/pat-2288-013678719880.jpg
)
)
)
....................
[6619] => Array
(
[id] => 12921
[title] => Special Police- BLACK Leather Key Fob
[barcode] => FOB-0435
[qty] => 1
[url] =>
[retail_price] => 8.99
[category] => Array
(
[id] => 54
[name] => KEY FOBS
)
[bin] => Array
(
[id] => 382
[name] => F10-21
)
[images] => Array
(
)
)
)
Hope this is useful.

Answer 1

Simpler answer
Just use array_slice to take out the number of elements you want:
echo "<pre>";
print_r(array_slice($products,0,5));
echo "</pre>";
The pitfalls I pointed to in Ben's answer are still relevant.
Original answer
print_r($products) will print the entire array each time through the loop. To limit the number of elements printed to 5, do:
Replace your for loop with:
for($i=0;$i<(min(5,count($products)));$i++):
echo "<pre>";
print_r(each($products)['value']);
echo "</pre>";
endfor;
Two pitfalls to watch out for in Ben Shoval's answer:
You should add a safeguard against going beyond the end of the array. If your $products has just 3 items, and you loop 5 times, you will run into an error. That's why I have the max $i set to min(5,count($products)
If you use the index $i to refer to each element, your code will fail if $products is an associative array (with named keys instead of indices 0,1...). This is why I use each($products)['value'] to access the value when I don't know the key

Answer 2

Change:
echo "<pre>";print_r($products);
To:
echo "<pre>";print_r($products[$i]);

Answer 3

You did wrong code, you have printed json decode resposne 5 times.
You should check what keys in the json decoded response and then try to get specific data you want.
For example:
if you want first 5 elements of response then:
$c = 0;
foreach($products as $p){
print_r($p);
$c++;
if($c == 5){
break;
}
}

Answer 4

I got the answer.This is how i done ........
Controller
$data = file_get_contents("............",true);
$result = json_decode($data);
$prod = array();
$i =0;
foreach($result as $rest){
$product = json_decode(json_encode($rest),true);
foreach($product as $prods){
$prod[] = array_merge($prods);
}
$new_array = array_slice($prod, 0, 5);
$this->render('index',array('model'=>$model,'products'=>$new_array));
}
View page
<?php
foreach($product as $prod):
?>
<li style="width: 200px;">
<?php
$img = array();
foreach($prod['images'] as $img):
//echo $img['middle'];
echo CHtml::image($img['source'],'',array('alt'=>'Image 3'));
// $i++;
endforeach;
// echo CHtml::link($img,'detail');
?>
<div class="list-holder">
<h4><?php echo $prod['title'];?></h4>
<div class="rating"> <span>$<?php echo $prod['retail_price'];?></span></div>
</div>
</li>
<?php
endforeach;
?>
This code displayed first 5 products in my view..
Thanks for all the answers provided and time...