php - return last 3 parts of string (url)

Question

I need to get the last three parts of a string (url). No need to pull the url from the browser as I already grab it from the database.

So, the string looks like: www.mysite.com/uploads/09/03/myimage.png

The part I'd like to extract from the string is "09/03/myimage.png"

The url is being pulled from the database and not from $_SERVER, so in this case I need to look through the string and grab the last part mentioned in question. — IntricatePixels
– IntricatePixels, Commented Sep 9, 2015 at 5:30
If its a valid url then you can simply use parse_url but as its not a valid url you need to use regex or explode function instead — Narendrasingh Sisodia
– Narendrasingh Sisodia, Commented Sep 9, 2015 at 5:33

Fathah Rehman P · Accepted Answer · 2015-09-09 10:55:34Z

3

<?php
 $url="www.mysite.com/uploads/09/03/myimage.png";
 $values=explode("/",$url); // this will split url string to array based on "/"char
 $length=sizeof($values); //calculated array length
 $lastthreeStringsCombined=$values[$length-3].'/'.$values[$length-2].'/'.$values[$length-1]; // formed new string by combining last 3 array elements
 echo $lastthreeStringsCombined;
?>

edited Sep 9, 2015 at 10:55

answered Sep 9, 2015 at 5:42

Fathah Rehman P

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2 Comments

jwenting Over a year ago

describe what you did and why, don't just dump some code.

SkyMaster Over a year ago

@IntricatePixels The best solution is by mapek.

mario.van.zadel · Accepted Answer · 2015-09-09 05:34:01Z

2

Try this:

$lastThreeParts = implode('/', array_slice(explode('/', $url), -3, 3, true));

answered Sep 9, 2015 at 5:34

mario.van.zadel

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Comments

Damon Swayn · Accepted Answer · 2015-09-09 05:35:14Z

1

I'm assuming you want to pull out just the path part and ignore query parameters or hash values in the URL.

I would suggest using parse_url() (documented here: http://php.net/manual/en/function.parse-url.php) to pull out the path.

$url = 'www.mysite.com/uploads/09/03/myimage.png';
$path = parse_url($url, PHP_URL_PATH);
$parts = explode('/', $path);
$output = array_slice($parts, -3, 3);
var_dump($output);

This will provide you with an array of the last 3 parts of the path and handles cases like query strings and hash values in the array, of course you will still need to do basic length validation to ensure this logic still holds.

answered Sep 9, 2015 at 5:35

Damon Swayn

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