Array search problem

$comedy = 'comedy, drama, thriller, action';

$array = array('action', 'fantas开发者_开发问答y', 'war', 'comedy', 'romance', 'drama', 'thriller');

I need to find the key words from each variable $comedy.

I need:

3
5
6
0

Thank you!

What about the following portion of code :

$comedy = 'comedy, drama, thriller, action';
$array = array('action', 'fantasy', 'war', 'comedy', 'romance', 'drama', 'thriller');

foreach (explode(', ', $comedy) as $word) {
    $index = array_search($word, $array);
    var_dump($index);
}

Which gives me the following output :

int 3
int 5
int 6
int 0

Basically :

• As your words in the $comedy variables are always separated by the same pattern ', ', you can use explode() to get an array that contains those words.
• Then, iterating over those words, you just have to call array_search() to get their position in your $array array.

$comedy = 'comedy, drama, thriller, action';

$array = array('action', 'fantasy', 'war', 'comedy', 'romance', 'drama', 'thriller');

$tags = explode(', ', $comedy);

foreach ($tags as $tag)
{
    echo array_search($tag, $array) . "\n";
}

This should do it.

You can find (and print) each of the indexes you want easily:

foreach (explode(', ', $comedy) as $keyword) {
    echo array_find($keyword, $array);
}

If you want to associate each keyword with the index, you can do it this way:

$words = explode(', ', $comedy);
$indexes = array_map(
             $words, 
             function($word) use ($array) { return array_find($keyword, $array); } 
$assoc = array_combine($words, $indexes);

print_r($assoc);

The above requires PHP >= 5.3 for anonymous functions.

Why is comedy just a string?

I would just make comedy an array also and then make a loop that checks each value in the comedy against each value in the array.