I am working on query string pattern for a redirection application. Can we use multiple OR statement in strstr. ex. if i am not sure whether it will be & or & or $ or / then is it possible to use the other signs in OR condition with $code= strstr($code, '/',+1);
Explanation:
the url will come to our redirect application like this
https://www.sample.com?key=1234~rety~1234~retu&c=12&k=12
OR
https://www.sample.com?key=1234~rety~1234~retu/c=12/k=12
OR
https://www.sample.com?key=1234~rety~1234~retu$c=12$k=12
the only variable for our purpose is key(whose name can be changed but data will come int he same pattern) all i want is to get data with ~ pattern.
I am doing following:
parse_str(parse_url($url, PHP_URL_QUERY), $parts);
$keys = array_keys($parts);
$size=sizeof($keys);
$total=substr_count($uri, '~');
$var=$keys[0];
$value=$parts[$var];
for($i=0;$i<$size;$i++){
$var=$keys[$i];
$value=$parts[$var];
$total=substr_count($value, '~');
if($total==3){
$digit_code = preg_split('/\~+/', $value);
$digit_code = array_filter($digit_code);
$digit_code = array_values($digit_code);
$project_id=$digit_code[0];
$country_id=$digit_code[1];
$vendor=$digit_code[2];
$code=$digit_code[3];
//$code= strstr($code, '/',+1);
}
But it is not working when url is coming like this
https://www.sample.com?key=1234~rety~1234~retu/c=12/k=12
or
https://www.sample.com?key=1234~rety~1234~retu$c=12$k=12
This is where using regex could be applicable:
preg_match('/((?:\/|&|\$).*)/', $code, $matches);
$code = $matches[1];
This will match a / or & or $ followed by the rest of the string.
http://au1.php.net/preg_match
are you referring in PHP redirection? or a query string in database to fetch data?
you can read strstr manual.
I found the solution:
I just put
if (strpos($code,'/') !== false) {
$code= strstr($code, '/',+1);
}
if (strpos($code,'$') !== false) {
$code= strstr($code, '$',+1);
}
once after for loop
Related
Hi just need to solve this php issue
What I need is to get only specific part of the text that I get from remote server. So remote server gives me this kind of content
......":"http://xxxxxxxx.com?source=yyyyy&service=zzzzz&token=47baiufbweiwrwrqwr21","...........
And I need to get back only this part: token=47baiufbweiwrwrqwr21
thank for help
Use parse_url() and preg_match()
$url = 'http://xxxxxxxx.com?source=yyyyy&service=zzzzz&token=47baiufbweiwrwrqwr21';
$query = parse_url($url, PHP_URL_QUERY);
preg_match('/token=([a-z0-9]+)/i', $query, $token);
echo $token[1];
parse_url() returns the Components of an URL.
You want to have a specific Query-Parameter, so you use the PHP_URL_QUERY-Component. After this you extract the token with a Regular Expression that searches for the Parameter-Name "token" followed by a "=". Then you catch all characters you want (a-z and 0-9). You set the i-Delimiter for a caseinsensitive Search. $token[1] returns the Match within the Subpattern (Brackets).
And if you get the URL from a File you can read it into a String using file_get_contents().
You can use substr and stripos
This will make sure you get the correct part even if the variables are in a different order and is not case sensitive.
https://3v4l.org/q35f0
$url = 'http://xxxxxxxx.com?source=yyyyy&token=47baiufbweiwrwrqwr21&service=zzzzz';
$pos = stripos($url, "token");
$pos2 = stripos($url, "&", $pos);
If($pos2 > 0){
Echo substr($url, $pos, $pos2-$pos);
}Else{
Echo substr($url, $pos);
}
Edit sorry my phone autocorrected my stripos to strpos. Funny how my phone is starting to learn php.
I would like to get all matches for any url's that have index.php?route=forum/ in them
Example urls to filter are:
http://test.codetrove.com/index.php?route=forum/forum
http://test.codetrove.com/index.php?route=forum/forum_category&forum_path=2
So i need the match to be true if it contains index.php?route=forum/ the http and domain can be anything like http or https or any domain.
Any idea's?
Rather than using a baseball bat to bludgeon a spider, take a look at strpos().
$string = "index.php?route=forum/";
if (strpos($url, $string) !== false) {
//we have a match
}
You can use regex :
/index\.php\?route=forum\/.*/
Or with the $_GET variable
if(preg_match('/forum\/.*/', $_GET['route'])) {
echo 'yahoo';
}
One possibility is to use the php strpos function documented here
$IsMatch = strpos ( $url , "index.php?route=forum/");
I have a input form field which collects mixed strings.
Determine if a posted string contains an URL (e.g. http://link.com, link.com, www.link.com, etc) so it can then be anchored properly as needed.
An example of this would be something as micro blogging functionality where processing script will anchor anything with a link. Other sample could be this same post where 'http://link.com' got anchored automatically.
I believe I should approach this on display and not on input. How could I go about it?
You can use regular expressions to call a function on every match in PHP. You can for example use something like this:
<?php
function makeLink($match) {
// Parse link.
$substr = substr($match, 0, 6);
if ($substr != 'http:/' && $substr != 'https:' && $substr != 'ftp://' && $substr != 'news:/' && $substr != 'file:/') {
$url = 'http://' . $match;
} else {
$url = $match;
}
return '' . $match . '';
}
function makeHyperlinks($text) {
// Find links and call the makeLink() function on them.
return preg_replace('/((www\.|(http|https|ftp|news|file)+\:\/\/)[_.a-z0-9-]+\.[a-z0-9\/_:#=.+?,##%&~-]*[^.|\'|\# |!|\(|?|,| |>|<|;|\)])/e', "makeLink('$1')", $text);
}
?>
You will want to use a regular expression to match common URL patterns. PHP offers a function called preg_match that allows you to do this.
The regular expression itself could take several forms, but here is something to get you started (also maybe just Google 'URL regex':
'/^(((http|https|ftp)://)?([[a-zA-Z0-9]-.])+(.)([[a-zA-Z0-9]]){2,4}([[a-zA-Z0-9]/+=%&_.~?-]))$/'
So your code should look something this:
$matches = array(); // will hold the results of the regular expression match
$string = "http://www.astringwithaurl.com";
$regexUrl = '/^(((http|https|ftp):\/\/)?([[a-zA-Z0-9]\-\.])+(\.)([[a-zA-Z0-9]]){2,4}([[a-zA-Z0-9]\/+=%&_\.~?\-]*))*$/';
preg_match($regexUrl, $string, $matches);
print_r($matches); // an array of matched patterns
From here, you just want to wrap those URL patterns in an anchor/href tag and you're done.
Just how accurate do you want to be? Given just how varied URLs can be, you're going to have to draw the line somewhere. For instance. www.ca is a perfectly valid hostname and does bring up a site, but it's not something you'd EXPECT to work.
You should investigate regular expressions for this.
You will build a pattern that will match the part of your string that looks like a URL and format it appropriately.
It will come out something like this (lifted this, haven't tested it);
$pattern = "((https?|ftp|gopher|telnet|file|notes|ms-help):((//)|(\\\\))+[\w\d:##%/;$()~_?\+-=\\\.&]*)";
preg_match($pattern, $input_string, $url_matches, PREG_OFFSET_CAPTURE, 3);
$url_matches will contain an array of all of the parts of the input string that matched the url pattern.
You can use $_SERVER['HTTP_HOST'] to get the host information.
<?php
$host = $SERVER['HTTP_HOST'];
?>
Post
I am trying to validate a Youtube URL using regex:
preg_match('~http://youtube.com/watch\?v=[a-zA-Z0-9-]+~', $videoLink)
It kind of works, but it can match URL's that are malformed. For example, this will match ok:
http://www.youtube.com/watch?v=Zu4WXiPRek
But so will this:
http://www.youtube.com/watch?v=Zu4WX£&P!ek
And this wont:
http://www.youtube.com/watch?v=!Zu4WX£&P4ek
I think it's because of the + operator. It's matching what seems to be the first character after v=, when it needs to try and match everything behind v= with [a-zA-Z0-9-]. Any help is appreciated, thanks.
To provide an alternative that is larger and much less elegant than a regex, but works with PHP's native URL parsing functions so it might be a bit more reliable in the long run:
$url = "http://www.youtube.com/watch?v=Zu4WXiPRek";
$query_string = parse_url($url, PHP_URL_QUERY); // v=Zu4WXiPRek
$query_string_parsed = array();
parse_str($query_string, $query_string_parsed); // an array with all GET params
echo($query_string_parsed["v"]); // Will output Zu4WXiPRek that you can then
// validate for [a-zA-Z0-9] using a regex
The problem is that you are not requiring any particular number of characters in the v= part of the URL. So, for instance, checking
http://www.youtube.com/watch?v=Zu4WX£&P!ek
will match
http://www.youtube.com/watch?v=Zu4WX
and therefore return true. You need to either specify the number of characters you need in the v= part:
preg_match('~http://youtube.com/watch\?v=[a-zA-Z0-9-]{10}~', $videoLink)
or specify that the group [a-zA-Z0-9-] must be the last part of the string:
preg_match('~http://youtube.com/watch\?v=[a-zA-Z0-9-]+$~', $videoLink)
Your other example
http://www.youtube.com/watch?v=!Zu4WX£&P4ek
does not match, because the + sign requires that at least one character must match [a-zA-Z0-9-].
Short answer:
preg_match('%(http://www.youtube.com/watch\?v=(?:[a-zA-Z0-9-])+)(?:[&"\'\s])%', $videoLink)
There are a few assumptions made here, so let me explain:
I added a capturing group ( ... ) around the entire http://www.youtube.com/watch?v=blah part of the link, so that we can say "I want get the whole validated link up to and including the ?v=movieHash"
I added the non-capturing group (?: ... ) around your character set [a-zA-Z0-9-] and left the + sign outside of that. This will allow us to match all allowable characters up to a certain point.
Most importantly, you need to tell it how you expect your link to terminate. I'm taking a guess for you with (?:[&"\'\s])
?) Will it be in html format (e.g. anchor tag) ? If so, the link in href will obviously end with a " or '.
?) Or maybe there's more to the query string, so there would be an & after the value of v.
?) Maybe there's a space or line break after the end of the link \s.
The important piece is that you can get much more accurate results if you know what's surrounding what you are searching for, as is the case with many regular expressions.
This non-capturing group (in which I'm making assumptions for you) will take a stab at finding and ignoring all the extra junk after what you care about (the ?v=awesomeMovieHash).
Results:
http://www.youtube.com/watch?v=Zu4WXiPRek
- Group 1 contains the http://www.youtube.com/watch?v=Zu4WXiPRek
http://www.youtube.com/watch?v=Zu4WX&a=b
- Group 1 contains http://www.youtube.com/watch?v=Zu4WX
http://www.youtube.com/watch?v=!Zu4WX£&P4ek
- No match
a href="http://www.youtube.com/watch?v=Zu4WX&size=large"
- Group 1 contains http://www.youtube.com/watch?v=Zu4WX
http://www.youtube.com/watch?v=Zu4WX£&P!ek
- No match
The "v=..." blob is not guaranteed to be the first parameter in the query part of the URL. I'd recommend using PHP's parse_url() function to break the URL into its component parts. You can also reassemble a pristine URL if someone began the string with "https://" or simply used "youtube.com" instead of "www.youtube.com", etc.
function get_youtube_vidid ($url) {
$vidid = false;
$valid_schemes = array ('http', 'https');
$valid_hosts = array ('www.youtube.com', 'youtube.com');
$valid_paths = array ('/watch');
$bits = parse_url ($url);
if (! is_array ($bits)) {
return false;
}
if (! (array_key_exists ('scheme', $bits)
and array_key_exists ('host', $bits)
and array_key_exists ('path', $bits)
and array_key_exists ('query', $bits))) {
return false;
}
if (! in_array ($bits['scheme'], $valid_schemes)) {
return false;
}
if (! in_array ($bits['host'], $valid_hosts)) {
return false;
}
if (! in_array ($bits['path'], $valid_paths)) {
return false;
}
$querypairs = explode ('&', $bits['query']);
if (count ($querypairs) < 1) {
return false;
}
foreach ($querypairs as $querypair) {
list ($key, $value) = explode ('=', $querypair);
if ($key == 'v') {
if (preg_match ('/^[a-zA-Z0-9\-_]+$/', $value)) {
# Set the return value
$vidid = $value;
}
}
}
return $vidid;
}
Following regex will match any youtube link:
$pattern='#(((http(s)?://(www\.)?)|(www\.)|\s)(youtu\.be|youtube\.com)/(embed/|v/|watch(\?v=|\?.+&v=|/))?([a-zA-Z0-9._\/~#&=;%+?-\!]+))#si';
$var="UseCountry=1
UseCountryDefault=1
UseState=1
UseStateDefault=1
UseLocality=1
UseLocalityDefault=1
cantidad_productos=5
expireDays=5
apikey=ABQIAAAAFHktBEXrHnX108wOdzd3aBTupK1kJuoJNBHuh0laPBvYXhjzZxR0qkeXcGC_0Dxf4UMhkR7ZNb04dQ
distancia=15
AutoCoord=1
user_add_locality=0
SaveContactForm=0
ShowVoteRating=0
Listlayout=0
WidthThumbs=100
HeightThumbs=75
WidthImage=640
HeightImage=480
ShowImagesSystem=1
ShowOrderBy=0
ShowOrderByDefault=0
ShowOrderDefault=DESC
SimbolPrice=$
PositionPrice=0
FormatPrice=0
ShowLogoAgent=1
ShowReferenceInList=1
ShowCategoryInList=1
ShowTypeInList=1
ShowAddressInList=1
ShowContactLink=1
ShowMapLink=1
ShowAddShortListLink=1
ShowViewPropertiesAgentLink=1
ThumbsInAccordion=5
WidthThumbsAccordion=100
HeightThumbsAccordion=75
ShowFeaturesInList=1
ShowAllParentCategory=0
AmountPanel=
AmountForRegistered=5
RegisteredAutoPublish=1
AmountForAuthor=5
AmountForEditor=5
AmountForPublisher=5
AmountForManager=5
AmountForAdministrator=5
AutoPublish=1
MailAdminPublish=1
DetailLayout=0
ActivarTabs=0
ActivarDescripcion=1
ActivarDetails=1
ActivarVideo=1
ActivarPanoramica=1
ActivarContactar=1
ContactMailFormat=1
ActivarReservas=1
ActivarMapa=1
ShowImagesSystemDetail=1
WidthThumbsDetail=120
HeightThumbsDetail=90
idCountryDefault=1
idStateDefault=1
ms_country=1
ms_state=1
ms_locality=1
ms_category=1
ms_Subcategory=1
ms_type=1
ms_price=1
ms_bedrooms=1
ms_bathrooms=1
ms_parking=1
ShowTextSearch=1
minprice=
maxprice=
ms_catradius=1
idcatradius1=
idcatradius2=
ShowTotalResult=1
md_country=1
md_state=1
md_locality=1
md_category=1
md_type=1
showComments=0
useComment2=0
useComment3=0
useComment4=0
useComment5=0
AmountMonthsCalendar=3
StartYearCalendar=2009
StartMonthCalendar=1
PeriodOnlyWeeks=0
PeriodAmount=3
PeriodStartDay=1
apikey=ABQIAAAAJ879Hg7OSEKVrRKc2YHjixSmyv5A3ewe40XW2YiIN-ybtu7KLRQiVUIEW3WsL8vOtIeTFIVUXDOAcQ
";
in that string only i want "api==ABQIAAAAJ879Hg7OSEKVrRKc2YHjixSmyv5A3ewe40XW2YiIN-ybtu7KLRQiVUIEW3WsL8vOtIeTFIVUXDOAcQ";
plz guide me correctly;
EDIT
As shamittomar pointed out, the parse_str will not work for this situation, posted the proper regex below.
Given this seems to be a QUERY STRING, use the parse_str() function PHP provides.
UPDATE
If you want to do it with regex using preg_match() as powertieke pointed out:
preg_match('/apikey=(.*)/', $var, $matches);
echo $matches[1];
Should do the trick.
preg_match(); should be right up your alley
people are so fast to jump to preg match when this can be done with regular string functions thats faster.
$string = '
expireDays=5
apikey=ABQIAAAAFHktBEXrHnX108wOdzd3aBTupK1kJuoJNBHuh0laPBvYXhjzZxR0qkeXcGC_0Dxf4UMhkR7ZNb04dQ
distancia=15
AutoCoord=1';
//test to see what type of line break it is and explode by that.
$parts = (strstr($string,"\r\n") ? explode("\r\n",$string) : explode("\n",$string));
$data = array();
foreach($parts as $part)
{
$sub = explode("=",trim($part));
if(!empty($sub[0]) || !empty($sub[1]))
{
$data[$sub[0]] = $sub[1];
}
}
and use $data['apikey'] for your api key, i would also advise you to wrpa in function.
I can bet this is a better way to parse the string and much faster.
function ParsemyString($string)
{
$parts = (strstr($string,"\r\n") ? explode("\r\n",$string) : explode("\n",$string));
$data = array();
foreach($parts as $part)
{
$sub = explode("=",trim($part));
if(!empty($sub[0]) || !empty($sub[1]))
{
$data[$sub[0]] = $sub[1];
}
}
return $data;
}
$data = ParsemyString($string);
First of all, you are not looking for
api==ABQIAAAAJ879Hg7OSEKVrRKc2YHjixSmyv5A3ewe40XW2YiIN-ybtu7KLRQiVUIEW3WsL8vOtIeTFIVUXDOAcQ
but you are looking for
apikey=ABQIAAAAJ879Hg7OSEKVrRKc2YHjixSmyv5A3ewe40XW2YiIN-ybtu7KLRQiVUIEW3WsL8vOtIeTFIVUXDOAcQ
It is important to know if the api-key property always occurs at the end and if the length of the api-key value is always the same. I this is the case you could use the PHP substr() function which would be easiest.
If not you would most probably need a regular expression which you can feed to PHPs preg_match() function. Something along the lines of apikey==[a-zA-Z0-9\-] Which matches an api-key containing a-z in both lowercase and uppercase and also allows for dashes in the key. If you are using the preg_match() function you can retrieve the matches (and thus your api-key value).