Putting part of an array into a string

[acm2011]

So I have split up a field of text into an array of strings like the following:

$body_words = explode(" ", $msg_body);

But now I want to take a portion of this array, say $body_words[3] through the end of the array and put them back together into a string, leaving out the beginning of the array like $body_words[0], [1], and [2]. I havent found a good solution yet for this and would really appreciate the help.

Thanks

[poyzn]

PHP Code:

$msg_body = 'some words and phrases';
$body_words = explode(" ", $msg_body);
unset($body_words[3]); // or unset(end($body_words));
echo implode(' ', $body_words); 


or

PHP Code:

$msg_body = 'some words and phrases';
$body_words = explode(" ", $msg_body);
$last_word = array_pop($body_words);
echo $last_word . '<br />';
echo implode(' ', $body_words); 


[Fou-Lu]

Originally Posted by poyzn

PHP Code:

$msg_body = 'some words and phrases';
$body_words = explode(" ", $msg_body);
unset($body_words[3]); // or unset(end($body_words));
echo implode(' ', $body_words); 


or

PHP Code:

$msg_body = 'some words and phrases';
$body_words = explode(" ", $msg_body);
$last_word = array_pop($body_words);
echo $last_word . '<br />';
echo implode(' ', $body_words); 


Neither of these will do what you want. The first removes the 3rd element and then rejoins, while the second removes the last item and then joins.
What you want is array_slice.

PHP Code:

$body_words = explode(" ", $msg_body);
if ($aSlice = array_slice($body_words, 3))
{
    print implode(' ', $aSlice);
} 


[acm2011]

Thanks for the response, array_slice() did exactly what I needed.

[kbluhm]

Originally Posted by poyzn

PHP Code:

// or unset(end($body_words)); 


Just for the sake of future knowledge: nah that won't work.