split a column value based on a delimiter?

Question

Suppose I have an entries under a column 'URL' like so:

---

URL

---

"GET /books/fiction?id=324223"
"GET /classroom/ HTTP/1.0"
"GET /register.php HTTP/1.0"
"POST /thankyou.php HTTP/1.0"
"GET /register.php?error=alreadyregistered HTTP/1.0"
"POST /processlogin.php?next=%2Fregister.php%3Ferror%3Dalreadyregistered HTTP/1.0"
"GET /register.php?error=alreadyregistered HTTP/1.0"
"GET /books/fiction?id=324273"

I need a query that will help me get just the words enclosed in the first pair of slashes,'/' from the URL. Eg. 'classroom','register' etc...

And the entries arent limited to these.. So i'd need a generic query rather than a specific one..Help?

Answer 1

This should do the trick (if I understand the question correctly):

$request = "GET /books/fiction?id=324223";

// captures URI from request string
$request_array = explode( ' ', $request );
$request_uri = $request_array[ 1 ];

// captures anything between / and . or /
preg_match( '#\/(.*?)[./]#', $request_uri, $matches);

var_dump($matches);

Answer 2

select substring_index(substring_index('http://books/serious?id=32423','//',-1),'/',1)

Answer 3

$teststr = array(
"GET /books/fiction?id=324223",
"GET /classroom/ HTTP/1.0",
"GET /register.php HTTP/1.0",
"POST /thankyou.php HTTP/1.0",
"GET /register.php?error=alreadyregistered HTTP/1.0",
"POST /processlogin.php?next=%2Fregister.php%3Ferror%3Dalreadyregistered HTTP/1.0",
"GET /register.php?error=alreadyregistered HTTP/1.0",
"GET /books/fiction?id=324273" );

foreach( $teststr as $str )
 if( preg_match( '/\/(?P<folder>\w+)\//', $str, $match) )
   echo $match['folder']."<br />";

returns

books
classroom
books

Answer 4

This one-liner should do it:

$node = preg_replace('~^.*?/([^./]+).*$~', '$1', $string);

You can see the output result at Codepad :

books extracted from GET /books/fiction?id=324223
classroom extracted from GET /classroom/ HTTP/1.0
register extracted from GET /register.php HTTP/1.0
thankyou extracted from POST /thankyou.php HTTP/1.0
register extracted from GET /register.php?error=alreadyregistered HTTP/1.0
processlogin extracted from POST /processlogin.php?next=%2Fregister.php%3Ferror%3Dalreadyregistered HTTP/1.0
register extracted from GET /register.php?error=alreadyregistered HTTP/1.0
books extracted from GET /books/fiction?id=324273