I have the following code :
function removeFilename($url)
{
$file_info = pathinfo($url);
return isset($file_info['extension'])
? str_replace($file_info['filename'] . "." . $file_info['extension'], "", $url)
: $url;
}
$url1 = "http://website.com/folder/filename.php";
$url2 = "http://website.com/folder/";
$url3 = "http://website.com/";
echo removeFilename($url1); //outputs http://website.com/folder/
echo removeFilename($url2);//outputs http://website.com/folder/
echo removeFilename($url3);//outputs http:///
Now my problem is that when there is only only a domain without folders or filenames my function removes website.com too.
My idea is there is any way on php to tell my function to do the work only after third slash or any other solutions you think useful.
UPDATED : ( working and tested )
<?php
function removeFilename($url)
{
$parse_file = parse_url($url);
$file_info = pathinfo($parse_file['path']);
return isset($file_info['extension'])
? str_replace($file_info['filename'] . "." . $file_info['extension'], "", $url)
: $url;
}
$url1 = "http://website.com/folder/filename.com";
$url2 = "http://website.org/folder/";
$url3 = "http://website.com/";
echo removeFilename($url1); echo '<br/>';
echo removeFilename($url2); echo '<br/>';
echo removeFilename($url3);
?>
Output:
http://website.com/folder/
http://website.org/folder/
http://website.com/
Sounds like you are wanting to replace a substring and not the whole thing. This function might help you:
http://php.net/manual/en/function.substr-replace.php
Since filename is at last slash you can use substr and str_replace to remove file name from path.
$PATH = "http://website.com/folder/filename.php";
$file = substr( strrchr( $PATH, "/" ), 1) ;
echo $dir = str_replace( $file, '', $PATH ) ;
OUTPUT
http://website.com/folder/
pathinfo cant recognize only domain and file name. But if without filename url is ended by slash
$a = array(
"http://website.com/folder/filename.php",
"http://website.com/folder/",
"http://website.com",
);
foreach ($a as $item) {
$item = explode('/', $item);
if (count($item) > 3)
$item[count($item)-1] ='';;
echo implode('/', $item) . "\n";
}
result
http://website.com/folder/
http://website.com/folder/
http://website.com
Close to the answer of splash58
function getPath($url) {
$item = explode('/', $url);
if (count($item) > 3) {
if (strpos($item[count($item) - 1], ".") === false) {
return $url;
}
$item[count($item)-1] ='';
return implode('/', $item);
}
return $url;
}
includes_url() is a function that retrieves the url to the includes directory in WordPress, the output of which by default looks like http://example.com/wp-includes/.
The function's code from the core:
function includes_url($path = '') {
$url = site_url() . '/' . WPINC . '/';
if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
$url .= ltrim($path, '/');
return apply_filters('includes_url', $url, $path);
}
How do I replace the function it with my own (using functions.php)? Essentially, I want to change the second line to this — $url = 'http://static-content.com/' . WPINC . '/';
There is a filter you can make use of with add_filter to make the existing function return what you want:
$callback = function($url, $path) {
$url = 'http://static-content.com/' . WPINC . '/';
if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
$url .= ltrim($path, '/');
return $url;
};
add_filter('includes_url', $callback, 10, 2);
Edit: PHP 5.2 version:
function includes_url_static($url, $path) {
$url = 'http://static-content.com/' . WPINC . '/';
if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
$url .= ltrim($path, '/');
return $url;
}
$callback = 'includes_url_static';
add_filter('includes_url', $callback, 10, 2);
One option would be to create your own function and have it call includes_url() and alter it.
function custom_includes_url($path = '') {
$url = includes_url($path);
return str_replace(site_url(), 'http://static-content.com', $url);
}
But you'd have to invoke custom_includes_url() everywhere.
It looks like fopen can't open files with spaces.
For example:
$url = 'http://gatewaypeople.com/images/articles/cntrbutnssttmnts12_main 616x200.jpg';
fopen($url, 'r');
returns false (mind the space in the url), but file is accessible by browsers.
I've also tried to escape the url by urlencode and rawurlencode with no luck. How to properly escape the spaces?
You can use this code:
$arr = parse_url ( 'http://gatewaypeople.com/images/articles/cntrbutnssttmnts12_main 616x200.jpg' );
$parts = explode ( '/', $arr['path'] );
$fname = $parts[count($parts)-1];
unset($parts[count($parts)-1]);
$url = $arr['scheme'] . '://' . $arr['host'] . join('/', $parts) . '/' . urlencode ( $fname );
var_dump( $url );
Alternative & Shorter Answer (Thanks to #Dziamid)
$url = 'http://gatewaypeople.com/images/articles/cntrbutnssttmnts12_main 616x200.jpg';
$parts = pathinfo($url);
$url = $parts['dirname'] . '/' . urlencode($parts['basename']);
var_dump( $url );
OUTPUT:
string(76) "http://gatewaypeople.com/images/articles/cntrbutnssttmnts12_main+616x200.jpg"
rawurlencodeis the way to go, but no not escape the full URL. Only escape the filename. So you will end up in http://gatewaypeople.com/images/articles/cntrbutnssttmnts12_main%20616x200.jpg
All solutions proposed here are wrong because they don't escape the query string part and the base directory part. Additionally they don't take in consideration user, pass and fragment url parts.
To correctly escape a valid URL you have to separately escape the path parts and the query parts.
So the solution is to extract the url parts, escape each part and rebuild the url.
Here is a simple code snippet:
function safeUrlEncode( $url ) {
$urlParts = parse_url($url);
$urlParts['path'] = safeUrlEncodePath( $urlParts['path'] );
$urlParts['query'] = safeUrlEncodeQuery( $urlParts['query'] );
return http_build_url($urlParts);
}
function safeUrlEncodePath( $path ) {
if( strlen( $path ) == 0 || strpos($path, "/") === false ){
return "";
}
$pathParts = explode( "/" , $path );
return implode( "/", $pathParts );
}
function safeUrlEncodeQuery( $query ) {
$queryParts = array();
parse_str($query, $queryParts);
$queryParts = urlEncodeArrayElementsRecursively( $queryParts );
return http_build_query( $queryParts );
}
function urlEncodeArrayElementsRecursively( $array ){
if( ! is_array( $array ) ) {
return urlencode( $array );
} else {
foreach( $array as $arrayKey => $arrayValue ){
$array[ $arrayKey ] = urlEncodeArrayElementsRecursively( $arrayValue );
}
}
return $array;
}
Usage would simply be:
$encodedUrl = safeUrlEncode( $originalUrl );
Side note
In my code snippet i'm making use of http://php.net/manual/it/function.http-build-url.php which is available under PECL extension. If you don't have PECL extension on your server you can simply include the pure PHP implementation: http://fuelforthefire.ca/free/php/http_build_url/
Cheers :)
$url = 'http://gatewaypeople.com/images/articles/cntrbutnssttmnts12_main 616x200.jpg';
fopen(urlencode($url), 'r');
In the preg_match below, I'm comparing against two static strings, $url and $my_folder...
$url = get_bloginfo('url')
//$url = 'http://site.com'
$my_folder = get_option('my_folder');
//$my_folder = 'http://site.com/somefolder;
I'm getting a match when the $my_folder string has a trailing slash
http://somefolder/go/
But this does not create a match...
http://somefolder/go
However, another problem is that this also matches...
http://somefolder/gone
Code is...
$my_folder = get_option('rseo_nofollow_folder');
if($my_folder !=='') $my_folder = trim($my_folder,'/');
$url = trim(get_bloginfo('url'),'/');
preg_match_all('~<a.*>~isU',$content["post_content"],$matches);
for ( $i = 0; $i <= sizeof($matches[0]); $i++){
if($my_folder !=='')
{
//HERES WHERE IM HAVING PROBLEMS
if ( !preg_match( '~nofollow~is',$matches[0][$i])
&& (preg_match('~' . $my_folder . '/?$~', $matches[0][$i])
|| !preg_match( '~'. $url .'/?$~',$matches[0][$i])))
{
$result = trim($matches[0][$i],">");
$result .= ' rel="nofollow">';
$content["post_content"] = str_replace($matches[0][$i], $result, $content["post_content"]);
}
}
else
{
//THIS WORKS FINE, NO PROBLEMS HERE
if ( !preg_match( '~nofollow~is',$matches[0][$i]) && (!preg_match( '~'.$url.'~',$matches[0][$i])))
{
$result = trim($matches[0][$i],">");
$result .= ' rel="nofollow">';
$content["post_content"] = str_replace($matches[0][$i], $result, $content["post_content"]);
}
}
}
return $content;
~^http://somefolder/go(?:/|$)~
You need to first remove the trailing slash and add '/?' at the end of your regexp
$my_folder = trim($my_folder,'/');
$url = trim(get_bloginfo('url'),'/');
if ( !preg_match( '~nofollow~is',$matches[0][$i])
&& (preg_match('~' . $my_folder . '/?$~', $matches[0][$i])
|| !preg_match( '~'. $url .'/?$~',$matches[0][$i])))
This is a shot in the dark, but try:
preg_match( '/' . preg_quote( get_bloginfo('url'), '/' ) . '?/', $matches[0][$i] )
You can use whatever char you want in place of the / chars. I'm guessing that you're using wordpress and guessing that get_bloginfo('url') is normalized to always have a trailing slash. If that is the case, the last slash will be selected optionally by the ? at the end of the regex.
You should just use strstr() or strpos() if it's fixed strings anyway.
Your example rewritten:
if (!strstr($matches[0][$i], "nofollow")
and strstr($matches[0][$i], $my_folder)
or !strstr($matches[0][$i], $url) )
strpos works similarly, but you need an extra boolean check:
if (strpos($matches, "nofollow") === FALSE
or strpos($matches, $my_folder) !== FALSE)
I have some links in a Powerpoint presentation, and for some reason, when those links get clicked, it adds a return parameter to the URL. Well, that return parameter is causing my Joomla site's MVC pattern to get bungled.
What's an efficient way to strip off this return parameter using PHP?
Example:
http://mydomain.example/index.php?id=115&Itemid=283&return=aHR0cDovL2NvbW11bml0
The safest "correct" method would be:
Parse the url into an array with parse_url()
Extract the query portion, decompose that into an array using parse_str()
Delete the query parameters you want by unset() them from the array
Rebuild the original url using http_build_query()
Quick and dirty is to use a string search/replace and/or regex to kill off the value.
In a different thread Justin suggests that the fastest way is to use strtok()
$url = strtok($url, '?');
See his full answer with speed tests as well here: https://stackoverflow.com/a/1251650/452515
This is to complement Marc B's answer with an example, while it may look quite long, it's a safe way to remove a parameter. In this example we remove page_number
<?php
$x = 'http://url.example/search/?location=london&page_number=1';
$parsed = parse_url($x);
$query = $parsed['query'];
parse_str($query, $params);
unset($params['page_number']);
$string = http_build_query($params);
var_dump($string);
function removeParam($url, $param) {
$url = preg_replace('/(&|\?)'.preg_quote($param).'=[^&]*$/', '', $url);
$url = preg_replace('/(&|\?)'.preg_quote($param).'=[^&]*&/', '$1', $url);
return $url;
}
parse_str($queryString, $vars);
unset($vars['return']);
$queryString = http_build_query($vars);
parse_str parses a query string, http_build_query creates a query string.
Procedural Implementation of Marc B's Answer after refining Sergey Telshevsky's Answer.
function strip_param_from_url($url, $param)
{
$base_url = strtok($url, '?'); // Get the base URL
$parsed_url = parse_url($url); // Parse it
// Add missing {
if(array_key_exists('query',$parsed_url)) { // Only execute if there are parameters
$query = $parsed_url['query']; // Get the query string
parse_str($query, $parameters); // Convert Parameters into array
unset($parameters[$param]); // Delete the one you want
$new_query = http_build_query($parameters); // Rebuilt query string
$url =$base_url.'?'.$new_query; // Finally URL is ready
}
return $url;
}
// Usage
echo strip_param_from_url( 'http://url.example/search/?location=london&page_number=1', 'location' )
You could do a preg_replace like:
$new_url = preg_replace('/&?return=[^&]*/', '', $old_url);
Here is the actual code for what's described above as the "the safest 'correct' method"...
function reduce_query($uri = '') {
$kill_params = array('gclid');
$uri_array = parse_url($uri);
if (isset($uri_array['query'])) {
// Do the chopping.
$params = array();
foreach (explode('&', $uri_array['query']) as $param) {
$item = explode('=', $param);
if (!in_array($item[0], $kill_params)) {
$params[$item[0]] = isset($item[1]) ? $item[1] : '';
}
}
// Sort the parameter array to maximize cache hits.
ksort($params);
// Build new URL (no hosts, domains, or fragments involved).
$new_uri = '';
if ($uri_array['path']) {
$new_uri = $uri_array['path'];
}
if (count($params) > 0) {
// Wish there was a more elegant option.
$new_uri .= '?' . urldecode(http_build_query($params));
}
return $new_uri;
}
return $uri;
}
$_SERVER['REQUEST_URI'] = reduce_query($_SERVER['REQUEST_URI']);
However, since this will likely exist prior to the bootstrap of your application, you should probably put it into an anonymous function. Like this...
call_user_func(function($uri) {
$kill_params = array('gclid');
$uri_array = parse_url($uri);
if (isset($uri_array['query'])) {
// Do the chopping.
$params = array();
foreach (explode('&', $uri_array['query']) as $param) {
$item = explode('=', $param);
if (!in_array($item[0], $kill_params)) {
$params[$item[0]] = isset($item[1]) ? $item[1] : '';
}
}
// Sort the parameter array to maximize cache hits.
ksort($params);
// Build new URL (no hosts, domains, or fragments involved).
$new_uri = '';
if ($uri_array['path']) {
$new_uri = $uri_array['path'];
}
if (count($params) > 0) {
// Wish there was a more elegant option.
$new_uri .= '?' . urldecode(http_build_query($params));
}
// Update server variable.
$_SERVER['REQUEST_URI'] = $new_uri;
}
}, $_SERVER['REQUEST_URI']);
NOTE: Updated with urldecode() to avoid double encoding via http_build_query() function.
NOTE: Updated with ksort() to allow params with no value without an error.
This one of many ways, not tested, but should work.
$link = 'http://mydomain.example/index.php?id=115&Itemid=283&return=aHR0cDovL2NvbW11bml0';
$linkParts = explode('&return=', $link);
$link = $linkParts[0];
Wow, there are a lot of examples here. I am providing one that does some error handling. It rebuilds and returns the entire URL with the query-string-param-to-be-removed, removed. It also provides a bonus function that builds the current URL on the fly. Tested, works!
Credit to Mark B for the steps. This is a complete solution to tpow's "strip off this return parameter" original question -- might be handy for beginners, trying to avoid PHP gotchas. :-)
<?php
function currenturl_without_queryparam( $queryparamkey ) {
$current_url = current_url();
$parsed_url = parse_url( $current_url );
if( array_key_exists( 'query', $parsed_url )) {
$query_portion = $parsed_url['query'];
} else {
return $current_url;
}
parse_str( $query_portion, $query_array );
if( array_key_exists( $queryparamkey , $query_array ) ) {
unset( $query_array[$queryparamkey] );
$q = ( count( $query_array ) === 0 ) ? '' : '?';
return $parsed_url['scheme'] . '://' . $parsed_url['host'] . $parsed_url['path'] . $q . http_build_query( $query_array );
} else {
return $current_url;
}
}
function current_url() {
$current_url = 'http' . (isset($_SERVER['HTTPS']) ? 's' : '') . '://' . "{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
return $current_url;
}
echo currenturl_without_queryparam( 'key' );
?>
$var = preg_replace( "/return=[^&]+/", "", $var );
$var = preg_replace( "/&{2,}/", "&", $var );
Second line will just replace && to &
very simple
$link = "http://example.com/index.php?id=115&Itemid=283&return=aHR0cDovL2NvbW11bml0"
echo substr($link, 0, strpos($link, "return") - 1);
//output : http://example.com/index.php?id=115&Itemid=283
#MarcB mentioned that it is dirty to use regex to remove an url parameter. And yes it is, because it's not as easy as it looks:
$urls = array(
'example.com/?foo=bar',
'example.com/?bar=foo&foo=bar',
'example.com/?foo=bar&bar=foo',
);
echo 'Original' . PHP_EOL;
foreach ($urls as $url) {
echo $url . PHP_EOL;
}
echo PHP_EOL . '#AaronHathaway' . PHP_EOL;
foreach ($urls as $url) {
echo preg_replace('#&?foo=[^&]*#', null, $url) . PHP_EOL;
}
echo PHP_EOL . '#SergeS' . PHP_EOL;
foreach ($urls as $url) {
echo preg_replace( "/&{2,}/", "&", preg_replace( "/foo=[^&]+/", "", $url)) . PHP_EOL;
}
echo PHP_EOL . '#Justin' . PHP_EOL;
foreach ($urls as $url) {
echo preg_replace('/([?&])foo=[^&]+(&|$)/', '$1', $url) . PHP_EOL;
}
echo PHP_EOL . '#kraftb' . PHP_EOL;
foreach ($urls as $url) {
echo preg_replace('/(&|\?)foo=[^&]*&/', '$1', preg_replace('/(&|\?)foo=[^&]*$/', '', $url)) . PHP_EOL;
}
echo PHP_EOL . 'My version' . PHP_EOL;
foreach ($urls as $url) {
echo str_replace('/&', '/?', preg_replace('#[&?]foo=[^&]*#', null, $url)) . PHP_EOL;
}
returns:
Original
example.com/?foo=bar
example.com/?bar=foo&foo=bar
example.com/?foo=bar&bar=foo
#AaronHathaway
example.com/?
example.com/?bar=foo
example.com/?&bar=foo
#SergeS
example.com/?
example.com/?bar=foo&
example.com/?&bar=foo
#Justin
example.com/?
example.com/?bar=foo&
example.com/?bar=foo
#kraftb
example.com/
example.com/?bar=foo
example.com/?bar=foo
My version
example.com/
example.com/?bar=foo
example.com/?bar=foo
As you can see only #kraftb posted a correct answer using regex and my version is a little bit smaller.
Remove Get Parameters From Current Page
<?php
$url_dir=$_SERVER['REQUEST_URI'];
$url_dir_no_get_param= explode("?",$url_dir)[0];
echo $_SERVER['HTTP_HOST'].$url_dir_no_get_param;
This should do it:
public function removeQueryParam(string $url, string $param): string
{
$parsedUrl = parse_url($url);
if (isset($parsedUrl[$param])) {
$baseUrl = strtok($url, '?');
parse_str(parse_url($url)['query'], $query);
unset($query[$param]);
return sprintf('%s?%s',
$baseUrl,
http_build_query($query)
);
}
return $url;
}
Simple solution that will work for every url
With this solution $url format or parameter position doesn't matter, as an example I added another parameter and anchor at the end of $url:
https://example.com/index.php?id=115&Itemid=283&return=aHR0cDovL2NvbW11bml0&bonus=test#test2
Here is the simple solution:
$url = 'https://example.com/index.php?id=115&Itemid=283&return=aHR0cDovL2NvbW11bml0&bonus=test#test2';
$url_query_stirng = parse_url($url, PHP_URL_QUERY);
parse_str( $url_query_stirng, $url_parsed_query );
unset($url_parsed_query['return']);
$url = str_replace( $url_query_stirng, http_build_query( $url_parsed_query ), $url );
echo $url;
Final result for $url string is:
https://example.com/index.php?id=115&Itemid=283&bonus=test#test2
Some of the examples posted are so extensive. This is what I use on my projects.
function removeQueryParameter($url, $param){
list($baseUrl, $urlQuery) = explode('?', $url, 2);
parse_str($urlQuery, $urlQueryArr);
unset($urlQueryArr[$param]);
if(count($urlQueryArr))
return $baseUrl.'?'.http_build_query($urlQueryArr);
else
return $baseUrl;
}
function remove_attribute($url,$attribute)
{
$url=explode('?',$url);
$new_parameters=false;
if(isset($url[1]))
{
$params=explode('&',$url[1]);
$new_parameters=ra($params,$attribute);
}
$construct_parameters=($new_parameters && $new_parameters!='' ) ? ('?'.$new_parameters):'';
return $new_url=$url[0].$construct_parameters;
}
function ra($params,$attr)
{ $attr=$attr.'=';
$new_params=array();
for($i=0;$i<count($params);$i++)
{
$pos=strpos($params[$i],$attr);
if($pos===false)
$new_params[]=$params[$i];
}
if(count($new_params)>0)
return implode('&',$new_params);
else
return false;
}
//just copy the above code and just call this function like this to get new url without particular parameter
echo remove_attribute($url,'delete_params'); // gives new url without that parameter
I know this is an old question but if you only want to remove one or few named url parameter you can use this function:
function RemoveGet_Regex($variable, $rewritten_url): string {
$rewritten_url = preg_replace("/(\?)$/", "", preg_replace("/\?&/", "?", preg_replace("/((?<=\?)|&){$variable}=[\w]*/i", "", $rewritten_url)));
return $rewritten_url;
}
function RemoveGet($name): void {
$rewritten_url = "https://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
if(is_array($name)) {
for($i = 0; $i < count($name); $i++) {
$rewritten_url = RemoveGet_Regex($name[$i], $rewritten_url);
$is_set[] = isset($_GET[$name[$i]]);
}
$array_filtered = array_filter($is_set);
if (!empty($array_filtered)) {
header("Location: ".$rewritten_url);
}
}
else {
$rewritten_url = RemoveGet_Regex($name, $rewritten_url);
if(isset($_GET[$name])) {
header("Location: ".$rewritten_url);
}
}
}
In the first function preg_replace("/((?<=\?)|&){$variable}=[\w]*/i", "", $rewritten_url) will remove the get parameter, and the others will tidy it up. The second function will then redirect.
RemoveGet("id"); will remove the id=whatever from the url. The function can also work with arrays. For your example,
Remove(array("id","Item","return"));
To strip any parameter from the url using PHP script you need to follow this script:
function getNewArray($array,$k){
$dataArray = $array;
unset($array[$k]);
$dataArray = $array;
return $dataArray;
}
function getFullURL(){
return (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
}
$url = getFullURL();
$url_components = parse_url($url);
// Use parse_str() function to parse the
// string passed via URL
parse_str($url_components['query'], $params);
print_r($params);
<ul>
<?php foreach($params as $k=>$v){?>
<?php
$newArray = getNewArray($params,$k);
$parameters = http_build_query($newArray);
$newURL = $_SERVER['PHP_SELF']."?".$parameters;
?>
<li><?=$v;?> X
<?php }?>
</ul>
here is functions optimized for speed. But this functions DO NOT remove arrays like a[]=x&a[1]bb=y&a[2]=z by array name.
function removeQueryParam($query, $param)
{
$quoted_param = preg_quote($param, '/');
$pattern = "/(^$quoted_param=[^&]*&?)|(&$quoted_param=[^&]*)/";
return preg_replace($pattern, '', $query);
}
function removeQueryParams($query, array $params)
{
if ($params)
{
$pattern = '/';
foreach ($params as $param)
{
$quoted_param = preg_quote($param, '/');
$pattern .= "(^$quoted_param=[^&]*&?)|(&$quoted_param=[^&]*)|";
}
$pattern[-1] = '/';
return preg_replace($pattern, '', $query);
}
return $query;
}
<? if(isset($_GET['i'])){unset($_GET['i']); header('location:/');} ?>
This will remove the 'i' parameter from the URL. Change the 'i's to whatever you need.