I send string from cliet to server by GET method. Its a street and buils number in format like that:
Lenina, 51
On server i parse it:
$str = $_GET["street"];
$adr_array = preg_split("/[\s,]+/", $str);
$street = $adr_array[0];
$build = $adr_array[1];
if($build!=null){
...do something....
}
But what if i get only:
Lenina
Of course i get error becouse $adr_array[1] not exist.
In this case how to handle that i not got build number?
You can check if is set element in array or not:
//Your code omitted
$build = isset($adr_array[1]) ? $adr_array[1] : null;
//Your code omitted
P.S. Are you sure you want to receive street and building number like that? Maybe you want to have separate input fields? I advise doing so because it will make your code cleaner. But this is only suggestion because I don't know what your UI look likes.
You could use array_key_exists:
if(array_key_exists(1, $adr_array)){
//Street number given
}
or like so:
$build = array_key_exists(1, $adr_array) ? trim($adr_array[1]) : null;
Related
I have some php code that extracts a web address. The object I have extracted is of the form:
WEBSITE?flage=2&fgast=48&frat=1&sort=D&fsrc=2&wid=bf&page=1&id=16123012&source=searchresults
Now in PHP I have called this object $linkHREF
I want to extract the id element only and put it into an array (I'm bootstrapping this process to get multiple id's)
So the command is:
$detailPagePathArray = explode("id=",$linkHREF); #Array
Now the problem is the output of this includes what comes after the id tag, so the output looks like:
echo $detailPagePathArray[0] = WEBSITE?flage=2&fgast=48&frat=1&sort=D&fsrc=2&w
echo $detailPagePathArray[1] = bf&page=1&
echo $detailPagePathArray[2] = 16123012&source=searchresults
Now the problem is obvious, where it'd firstly picking up the "id" in the "wid" marker and cutting it there, however the secondary problem is it's also picking up all the material after the actual "id". I'm just interested in picking up "16123012".
Can you please explain how I can modify my explode command to point it to the particular marker I'm interested in?
Thanks.
Use the built-in functions provided for the purpose.
For example:
<?php
$url = 'http://www.example.com?flage=2&fgast=48&frat=1&sort=D&fsrc=2&wid=bf&page=1&id=16123012&source=searchresults';
$qs = parse_url($url);
parse_str($qs['query'], $vars);
$id = $vars['id'];
echo $id; // 16123012
?>
References:
parse_url()
parse_str()
if you are sure that you are getting &id=123456 only once in your object, then below
$linkHREF = "WEBSITE?flage=2&fgast=48&frat=1&sort=D&fsrc=2&wid=bf&page=1&id=16123012&source=searchresults";
$str = current(explode('&',end(explode('&id', $linkHREF,2))));
echo "id" .$str; //output id = 16123012
How can I take out the part of the url after the view name
Example:
The URL:
http://localhost/winner/container.php?fun=page&view=eims
Extraction
eims
This is called a GET parameter. You can get it by using
<?php
$view = $_GET['view'];
If this is for a URL which is not part of your website (e.g. Not your domain), but you wish to parse it. Something like this will work
$url = "http://example.com/index.php?foo=bar&acme=baz&view=asdf";
$params = explode('?', $url)[1]; // This gets the text AFTER the ? Note: If using PHP 5.3 or less, this may not work. You would then need to split it into two lines with the [1] happening on $params.
$pairs = explode('&', $params);
foreach($pairs as $p => $pair) {
list($keys[$p], $values[$p]) = explode('=', $pair);
$splits[$keys[$p]] = $values[$p];
}
echo $splits['view'];
<?php echo $_GET['view']; ?> //eims
If that's current URL, the simple and rock solid approach is to use the filter functions:
filter_input(INPUT_GET, 'view')
Otherwise, you can use parse_url() with PHP_URL_QUERY as second argument. The resulting string can be split with e.g. parse_str().
Are sure you are writing this "echo $_GET['view'];" in the container.php file?
Maybe write why do you need that "view".
I have this code for scraping team names from a table
$url = 'http://fantasy.premierleague.com/my-leagues/303/standings/';
$html = #file_get_html($url);
//Cut out the table
$FullTable = $html->find('table[class=ismStandingsTable]',0);
//get the text from the 3rd cell in the row
$teamname = $FullTable->find('td',2)->innertext;
echo $teamname;
This much works.. and gives this output....
Why Always Me?
But when I add these lines..
$teamdetails = $teamname->find('a')->href;
echo $teamdetails;
I get completely blank output.
Any idea why? I am trying to get the /entry/110291/event-history/33/ as one variable, and the Why Always Me? as another.
Instead do this:
$tdhtml = DOMDocument::loadHTML($teamdetails);
$link = $tdhtml->getElementsByTagName('a');
$url = $link->item(0)->attributes->getNamedItem('href')->nodeValue;
$teamdetails = $teamname->find('a')->href;
^^^^^^^^^---- never defined in your code
I also fail to see how your "works" code could possibly work. You don't define $teamname in there either, so all you'd never get is the output of a null/undefined variable, which is...no output all.
Marc B is right, I get that you don't have to initialize a variable, but he is saying you are trying to access a property of said variable:
$teamdetails = $teamname->find('a')->href;
^^^^^^^^^---- never defined in your code
This is essentially:
$teamname = null;
$teamname->find('a')->href;
The problem in your example is that $teamname is a string and you're treating it like a simple_html_dom_node
my url is like below:
http://www.xyz.org/abc/list.php?id=1
now "$_SERVER['PHP_SELF']" gives me only "abc/list.php" this portion
and "$_SERVER['REQUEST_URI']" gives me "abc/list.php?id=1" this
now if i want to fetch only the portion "?id=1" how to do that.
coz im having problems in the paging query for this.
thanxx in advance...
It's $_SERVER['QUERY_STRING'].
Use $_GET['id'] to access the id parameter.
Take a look at http://php.net/parse_str, http://php.net/parse-url and http://php.net/http_build_query
Depending on what you're doing http://bradym.net/php/modify-query-string-parameters may also be helpful.
$_GET['id'] or $_REQUEST['id']
if your not sure which GET values u'll receive u also could
$fullRequest = exlode('?', $_SERVER['REQUEST_URI']);
$params = array();
foreach(explode('&', $fullRequest) as $part){
foreach(explode('=', $part) as $keyVal){
$params[$keyVal[0]] = $keyVal[1];
}
}
I need to find the number of indexed pages in google for a specific domain name, how do we do that through a PHP script?
So,
foreach ($allresponseresults as $responseresult)
{
$result[] = array(
'url' => $responseresult['url'],
'title' => $responseresult['title'],
'abstract' => $responseresult['content'],
);
}
what do i add for the estimated number of results and how do i do that?
i know it is (estimatedResultCount) but how do i add that? and i call the title for example this way: $result['title'] so how to get the number and how to print the number?
Thank you :)
I think it would be nicer to Google to use their RESTful Search API. See this URL for an example call:
http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=site:stackoverflow.com&filter=0
(You're interested in the estimatedResultCount value)
In PHP you can use file_get_contents to get the data and json_decode to parse it.
You can find documentation here:
http://code.google.com/apis/ajaxsearch/documentation/#fonje
Example
Warning: The following code does not have any kind of error checking on the response!
function getGoogleCount($domain) {
$content = file_get_contents('http://ajax.googleapis.com/ajax/services/' .
'search/web?v=1.0&filter=0&q=site:' . urlencode($domain));
$data = json_decode($content);
return intval($data->responseData->cursor->estimatedResultCount);
}
echo getGoogleCount('stackoverflow.com');
You'd load http://www.google.com/search?q=domaingoeshere.com with cURL and then parse the file looking for the results <p id="resultStats" bit.
You'd have the resulting html stored in a variable $html and then say something like
$arr = explode('<p id="resultStats"'>, $html);
$bottom = $arr[1];
$middle = explode('</p>', $bottom);
Please note that this is untested and a very rough example. You'd be better off parsing the html with a dedicated parser or matching the line with regular expressions.
google ajax api estimatedResultCount values doesn't give the right value.
And trying to parse html result is not a good way because google blocks after several search.
Count the number of results for site:yourdomainhere.com - stackoverflow.com has about 830k
// This will give you the count what you see on search result on web page,
//this code will give you the HTML content from file_get_contents
header('Content-Type: text/plain');
$url = "https://www.google.com/search?q=your url";
$html = file_get_contents($url);
if (FALSE === $html) {
throw new Exception(sprintf('Failed to open HTTP URL "%s".', $url));
}
$arr = explode('<div class="sd" id="resultStats">', $html);
$bottom = $arr[1];
$middle = explode('</div>', $bottom);
echo $middle[0];
Output:
About 8,130 results
//vKj
Case 2: you can also use google api, but its count is different:
https://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=ursitename&callback=processResults
https://ajax.googleapis.com/ajax/services/search/web?v=1.0&q=site:google.com
cursor":{"resultCount":"111,000,000","
"estimatedResultCount":"111000000",