PHP - Counting Strings in Array - php

Question

Does anyone know how to get the number of occurences of "photo" and "status"? I tried to output it as a string and perform a substr_count but no luck.
Array ( [0] => [1] => photo )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => status )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => status )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => status )
Array ( [0] => [1] => status )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => status )
Array ( [0] => [1] => status )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => status )
Array ( [0] => [1] => status )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => photo )
Array ( [0] => [1] => status )
Array ( [0] => [1] => status )
Array ( [0] => [1] => status )
Array ( [0] => [1] => link )
Array ( [0] => [1] => status )
The original JSON code from the Facebook Graph API is:
{
"data": [
{
"id": "123",
"from": {
"name": "Some Name",
"category": "Food/beverages",
"id": "123"
},
"picture": "a pic",
"link": "a link",
"name": "bla bla ",
"caption": "9 new photos",
"icon": "a icon",
"actions": [
{
"name": "Comment",
"link": "a link"
},
{
"name": "Like",
"link": "a link"
}
],
"privacy": {
"description": "Public",
"value": "EVERYONE"
},
"type": "photo",
"object_id": "232342",
"created_time": "2012-03-01T14:58:53+0000",
"updated_time": "2012-03-02T14:12:50+0000",
"likes": {
"data": [
{
"name": "a name",
"id": "1234423"
}
],
"count": 58
},
"comments": {
"data": [
{
"id": "234234",
"from": {
"name": "a name",
"id": "23423234"
},
"message": "message bla bla",
"created_time": "2012-03-02T13:42:48+0000",
"likes": 2
},
{
"id": "234234234",
"from": {
"name": " a name",
"category": "Food/beverages",
"id": "123"
},
"message": "asfd",
"created_time": "2012-03-02T14:12:50+0000"
}
],
"count": 15
},
"is_published": true
},
{
"id": "123123",
"from": {
"name": "name",
"category": "Food/beverages",
"id": "123"
},
"message": "sadfasfd",
"actions": [
{
"name": "Comment",
"link": "a link"
},
{
"name": "Like",
"link": "a link"
}
],
"privacy": {
"description": "Public",
"value": "EVERYONE"
},
"type": "status",
"created_time": "2012-03-01T09:49:40+0000",
"updated_time": "2012-03-01T17:00:53+0000",
"likes": {
"data": [
{
"name": "name",
"id": "1000"
}
],
"count": 17
},
"comments": {
"data": [
{
"id": "1404",
"from": {
"name": "name",
"id": "1000"
},
"message": "bla bla",
"created_time": "2012-03-01T11:41:53+0000",
"likes": 2
},
{
"id": "1404781",
"from": {
"name": "name",
"id": "142"
},
"message": "message adsafasd",
"created_time": "2012-03-01T17:00:53+0000"
}
],
"count": 9
},
"is_published": true
},
I perform a json_decode with the JSON output and then loop through like that
foreach ($page_posts_overview->data as $page_posts_overview_output){
$type = " ".$page_posts_overview_output->type;
$type = explode(" ", $type);
$type = array($type);
print_r ($type);// this is what the output posted above
}

Answer 1

I think you would need to loop through the array manually and keep count of the number of times each word shows up:
function count_words($fb_array) {
$keywords = array();
foreach($fb_array as $element) {
$word = $element[1];
if (!array_key_exists($keywords, $word)) {
$keywords[$word] = 0;
}
$keywords[$word]++;
}
return $keywords;
}
print_r($keywords);
Assuming you have an array of keywords in $fb_array, $keywords should now contain a count for each word.

Answer 2

$a = array(...); // your Facebook data
$b = array();
foreach ($a as $e) {
$b[] = $e[1];
}
$c = array_count_values($b);
var_dump($c)
http://www.php.net/manual/en/function.array-count-values.php