How to remove the querystring and get only the url?

Question

You can use strtok to get string before first occurence of ?

$url = strtok($_SERVER["REQUEST_URI"], '?');

strtok() represents the most concise technique to directly extract the substring before the ? in the querystring. explode() is less direct because it must produce a potentially two-element array by which the first element must be accessed.

Some other techniques may break when the querystring is missing or potentially mutate other/unintended substrings in the url -- these techniques should be avoided.

A demonstration:

$urls = [
    'www.example.com/myurl.html?unwantedthngs#hastag',
    'www.example.com/myurl.html'
];

foreach ($urls as $url) {
    var_export(['strtok: ', strtok($url, '?')]);
    echo "\n";
    var_export(['strstr/true: ', strstr($url, '?', true)]); // not reliable
    echo "\n";
    var_export(['explode/2: ', explode('?', $url, 2)[0]]);  // limit allows func to stop searching after first encounter
    echo "\n";
    var_export(['substr/strrpos: ', substr($url, 0, strrpos( $url, "?"))]);  // not reliable; still not with strpos()
    echo "\n---\n";
}

Output:

array (
  0 => 'strtok: ',
  1 => 'www.example.com/myurl.html',
)
array (
  0 => 'strstr/true: ',
  1 => 'www.example.com/myurl.html',
)
array (
  0 => 'explode/2: ',
  1 => 'www.example.com/myurl.html',
)
array (
  0 => 'substr/strrpos: ',
  1 => 'www.example.com/myurl.html',
)
---
array (
  0 => 'strtok: ',
  1 => 'www.example.com/myurl.html',
)
array (
  0 => 'strstr/true: ',
  1 => false,                       // bad news
)
array (
  0 => 'explode/2: ',
  1 => 'www.example.com/myurl.html',
)
array (
  0 => 'substr/strrpos: ',
  1 => '',                          // bad news
)
---

Use PHP Manual - parse_url() to get the parts you need.

Edit (example usage for @Navi Gamage)

You can use it like this:

<?php
function reconstruct_url($url){    
    $url_parts = parse_url($url);
    $constructed_url = $url_parts['scheme'] . '://' . $url_parts['host'] . $url_parts['path'];

    return $constructed_url;
}

?>

Edit (second full example):

Updated function to make sure scheme will be attached and none notice msgs appear:

function reconstruct_url($url){    
    $url_parts = parse_url($url);
    $constructed_url = $url_parts['scheme'] . '://' . $url_parts['host'] . (isset($url_parts['path'])?$url_parts['path']:'');

    return $constructed_url;
}


$test = array(
    'http://www.mydomian.com/myurl.html?unwan=abc',
    'http://www.mydomian.com/myurl.html',
    'http://www.mydomian.com',
    'https://mydomian.com/myurl.html?unwan=abc&ab=1'
);

foreach($test as $url){
    print_r(parse_url($url));
}       

Will return:

Array
(
    [scheme] => http
    [host] => www.mydomian.com
    [path] => /myurl.html
    [query] => unwan=abc
)
Array
(
    [scheme] => http
    [host] => www.mydomian.com
    [path] => /myurl.html
)
Array
(
    [scheme] => http
    [host] => www.mydomian.com
)
Array
(
    [path] => mydomian.com/myurl.html
    [query] => unwan=abc&ab=1
)

This is the output from passing example urls through parse_url() with no second parameter (for explanation only).

And this is the final output after constructing url using:

foreach($test as $url){
    echo reconstruct_url($url) . '<br/>';
}   

Output:

http://www.mydomian.com/myurl.html
http://www.mydomian.com/myurl.html
http://www.mydomian.com
https://mydomian.com/myurl.html

best solution:

echo parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);

No need to include your http://domain.com in your if you're submitting a form to the same domain.

$val = substr( $url, 0, strrpos( $url, "?"));

Most Easiest Way

$url = 'https://www.youtube.com/embed/ROipDjNYK4k?rel=0&autoplay=1';
$url_arr = parse_url($url);
$query = $url_arr['query'];
print $url = str_replace(array($query,'?'), '', $url);

//output
https://www.youtube.com/embed/ROipDjNYK4k