CODEWITHSUNDEEP
phparrays
Dachan
Dachan

Reputation: 156

Using substr_count within a nested array

I'm trying to pull out certain groups of keywords from a block of text using substr_count and have it count how many times the words in each group appears.

I've created an array called $keywords, within it is another set of arrays which contain the actual keywords I am looking for.

This is my current code:

$textDump = "random bunch of text";

$keyWordsSports = array("nba", "raptor", "ufc", "basektball", "gym", "mma", "realgm", "running");
$keyWordsTech = array("apple", "rim", "blackberry", "facebook", "twitter", "google" );
$keywords = array($keyWordsSports, $keyWordsTech);
foreach ($keywords as $item){
    foreach ($item as $newItem){
        $number += substr_count(strtolower($textDump), strtolower($newItem));
        echo $number;
    };
};

My problem is that it counts all the keywords within all the arrays and adds everything together, what I want is just the total for each group of keywords. Any ideas on what I should do?

Upvotes: 0

Views: 145

Answers (3)

Jitesh Tukadiya
Jitesh Tukadiya

Reputation: 1339

you just need to echo the $number outside the inner foreach like this,

$textDump = "random bunch of text";
$keyWordsSports = array("nba", "raptor", "ufc", "basektball", "gym", "mma", "realgm", "running");
$keyWordsTech = array("apple", "rim", "blackberry", "facebook", "twitter", "google" );
$keywords = array($keyWordsSports, $keyWordsTech);
foreach ($keywords as $item) {
    foreach ($item as $newItem) {
        $number += substr_count(strtolower($textDump), strtolower($newItem));
    }
    echo $number;
}

Upvotes: 0

Manoj Purohit
Manoj Purohit

Reputation: 3453

Try this :

$textDump = "raptor bunch raptor basektball";

$keyWordsSports = array("nba", "raptor", "ufc", "basektball", "gym", "mma", "realgm", "running");
$keyWordsTech = array("apple", "rim", "blackberry", "facebook", "twitter", "google" );
$keywords = array($keyWordsSports, $keyWordsTech);
$matches=array();
foreach ($keywords as $item){
    foreach ($item as $newItem){
        $number = substr_count(strtolower($textDump), strtolower($newItem));
        if($number>0)
        {
        $matches[strtolower($newItem)]=$number;
        }
    };
};
print_r($matches);

Upvotes: 1

Passerby
Passerby

Reputation: 10070

$keywords = array("sports"=>$keyWordsSports, "tech"=>$keyWordsTech);
$count=array("sports"=>0,"tech"=>0);
foreach ($keywords as $key=>$item){
    foreach ($item as $newItem){
        $count[$key] += substr_count(strtolower($textDump), strtolower($newItem));
    }
}
print_r($count);

Edit: Live example

Upvotes: 3

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