I'm sorry if is a repeated question, but i having trouble with PHP. I'm working with the code of another programer, and he is using php. In one of the pages que get the information from the url, but no via post nor get, but by attaching it to the url and putting / between them, like this:
www.example.com/memorial/31/john
the he uses 31 and john as data. I have no memorial directory, neither a file called memorial.
Is there a way to do this in PHP without a framework, he doesn't seem to be using any libraries either.
The most likely explanation is that he is using an URL rewrite engine, such as Apache's mod_rewrite. This will be doing something like turning the directory parts into GET variables.
You can find that information in the global $_SERVER variable: $_SERVER['REQUEST_URI']. As #Oli mentioned, this is probably through a rewrite engine.
For example if you went to the URL you mentioned (www.example.com/memorial/31/john):
$uriPieces = explode('/',$_SERVER['REQUEST_URI'],'/');
// this gets rid of all of the cases of double-slashes as well as the initial
// and trailing. This is optional, but I will generally prefer it.
$uriPieces = array_filter($uriPieces);
print_r($uriPieces);
Outputs
Array
(
[0] => memorial
[1] => 34
[2] => john
)
If you search your project for REQUEST_URI, you will find where the variables are being set.
Related
I am trying to create a simple web service that will give a result depending on parameters passed.
I would like to use file_get_contents but am having difficulties getting it to work. I have researched many of the other questions relating to the file_get_contents issues but none have been exactly the situation I seem to having.
I have a webpage:
example.com/xdirectory/index.php
I am attempting to get the value of the output of that page using:
file_get_contents(urlencode('https://www.example.com/xdirectory/index.php'));*
That does not work due to some issue with the https. Since the requesting page and the target are both on the same server I try again with a relative path:
file_get_contents(urlencode('../xdirectory/index.php'));
That does work and retrieves the html output of the page as expected.
Now if I try:
file_get_contents(urlencode('../xdirectory/index.php?id=100'));
The html output is (should be): Hello World.
The result retrieved by the command is blank. I check the error log and have an error:
[Fri Dec 04 12:22:54 2015] [error] [client 10.50.0.12] PHP Warning: file_get_contents(../xdirectory/index.php?id=100): failed to open stream: No such file or directory in /var/www/html/inventory/index.php on line 40, referer: https://www.example.com/inventory/index.php
The php.ini has these set:
allow_url_fopen, On local and On master
allow_url_include, On local and On master
Since I can get the content properly using only the url and NOT when using it with parameters I'm guessing that there is an issue with parameters and file_get_contents. I cannot find any notice against using parameters in the documentation so am at a loss and asking for your help.
Additional Notes:
I have tried this using urlencode and not using urlencode. Also, I am not trying to retrieve a file but dynamically created html output depending on parameters passed (just as much of the html output at index.php is dynamically created).
** There are several folks giving me all kind of good suggestions and it has been suggested that I must use the full blown absolute path. I just completed an experiment using file_get_contents to get http://www.duckduckgo.com, that worked, and then with a urlencoded parameter (http://www.duckduckgo.com/?q=php+is+cool)... that worked too.
It was when I tried the secure side of things, https://www.duckduckgo.com that it failed, and, with the same error message in the log as I have been receiving with my other queries.
So, now I have a refined question and I may need to update the question title to reflect it.
Does anyone know how to get a parameterized relative url to work with file_get_contents? (i.e. 'file_get_contents(urlencode('../xdirectory/index.php?id=' . urlencode('100'))); )
Unless you provide a full-blown absolute protocol://host/path-type url to file_get_contents, it WILL assume you're dealing with a local filesystem path.
That means your urlencode() version is wrongly doing
file_get_contents('..%2Fxdirectory%2Findex.php');
and you are HIGHLY unlikely to have a hidden file named ..%2Fetc....
call url with domain, try this
file_get_contents('https://www.example.com/inventory/index.php?id=100');
From reading your comments and additional notes, I think you don't want file_get_contents but you want include.
see How to execute and get content of a .php file in a variable?
Several of these answers give you useful pointers on what it looks like you're trying to achieve.
file_get_contents will return the contents of a file rather than the output of a file, unless it's a URL, but as you seem to have other issues with passing the URI absolutely....
So; you can construct something like:
$_GET['id'] = 100;
//this will pass the variable into the index.php file to use as if it was
// a GET value passed in the URI.
$output = include $_SERVER['DOCUMENT_ROOT']."/file/address/index.php";
unset($_GET['id']);
//$output holds the HTML code as a string,
The above feels hacky trying to incorporate $_GET values into the index.php page, but if you can edit the index.php page you can use plain PHP passed values and also get the output returned with a specific return $output; statement at the end of the included file.
It has been two years since I used PHP so I am just speculating about what I might try in your situation.
Instead of trying fetching the parsed file contents with arguments as a query string, I might try to set the variables directly within the php script and then include it (that is if the framework you use allows this).
To achive this I would use pattern:
ob_start -> set the variable, include the file that uses the variable -> ob_get_contents -> ob_end_clean
It is like opening your terminal and running the php file with arguments.
Anyway, I would not be surprised if there are better ways to achieve the same results. Happy hacking :o)
EDIT:
I like to emphasize that I am just speculating. I don't know if there are any security issues with this approach. You could of course ask and see if anyone knows here on stackoverflow.
EDIT2:
Hmm, scrap what I said last. I would check if you can use argv instead.
'argv' Array of arguments passed to the script. When the script is run on the command line, this gives C-style access to the command line parameters. When called via the GET method, this will contain the query string. http://php.net/manual/en/reserved.variables.server.php
Then you just call your php script locally but without the query mark indicator "?". This way you can use the php interpreter without the server.
This is likely to be the most general solution because you can also use argv for get requests if I am understanding the manual correctly.
Started learning php this week and had many doubts, but this is one of them which i couldn't find solution(Maybe i didn't know the right keyword to search for).
Is it possible to read variables in URL as a function inside a php file,
for example :
http://mywebsite.com/demo_app/phone_api/login/harsha/harshapass
Here demo_app is the folder, phone_api is the php file, and i want to invoke the function login, where harsha and harshapass is the paramaters to that function.
You'll need 2 things for this.
The first is mod_rewrite, this is an apache module. With this module you can rewrite the URL like you want, so that /demo_app/phone_api/ will redirect to your php file.
I advice that you read a tutorial somewhere about this, for example here.
Second thing is that you need to parse the URL.
With $_SERVER['REQUEST_URI'] you get the URL. With explode and/or preg_match you can parse this string into the parts you want (function, parameters, whatever).
If you have a more specific question about this, you can ask this here (in a new topic).
Good luck!
Did you consider sending the values as $_GET variables and retrieving them in the page like so:
http://mywebsite.com/demo_app/phone_api?login=login&harsha=harsha&harshapass=harshapass
so you can get the values in the phone_api.php page like:
$login = $_GET['login'];
$harsha = $_GET['harsha'];
$harshapass = $_GET['harshapass'];
$login($harsha, $harshapass){
//your function code.
}
Maybe it'll be easier this way.
Firstly I'd like to apologise in advance if this is a stupid question - Although I have been writing PHP for the last 12 years, I work on bespoke applications and have only been using Magento for the last hour, so I'm clueless on its structure. If possible I'd like to avoid having to dig too much into Magento as the entire reason why I'm using Magento is to save time.
Anyway, the error:
Call to a member function getResourceId() on a non-object in /var/www/[site]/lib/Zend/Acl.php on line 1174
This error occurred after attempting to log in to the administration area immediately after install. The error is in the &_getRules method in lib/Zend/Acl.php.
So, I did a little digging and $resource (the variable it is attempting to call the &_getRules method on) is actually an array - which I found odd as the this is the method definition:
protected function &_getRules(Zend_Acl_Resource_Interface $resource = null, Zend_Acl_Role_Interface $role = null, $create = false){
So, to verify that I wasn't actually losing my mind I wrote the following as the first line of the &_getRules method
if($resource!==null&&!$resource instanceof Zend_Acl_Resource_Interface){
die('<pre>'.print_r($resource,1).' </pre>');
}
Which printed:
Array
(
[G1] => Array
(
[instance] => Mage_Admin_Model_Acl_Role_Group Object
(
[_roleId:protected] => G1
)
[parents] => Array
(
)
[children] => Array
(
[U1] => Mage_Admin_Model_Acl_Role_User Object
(
[_roleId:protected] => U1
)
)
)
[U1] => Array
(
[instance] => bea423c23f6343e2b509fb192a00826f:3EOt7Vo0agtENPH8Wm73EOelgSDoDxYO
[parents] => Array
(
[G1] => Ryan
)
[children] => Array
(
)
)
)
So yeah, i guess my question comes in four parts:
Why doesn't this work out of the box?
Am I just being an idiot?
Why isn't PHP preventing this method from running considering the $resource variable is neither a Zend_Acl_Resource_Interface or null?
How do i fix it?
I should mention that this is a local test site, running on Ubuntu 12.04, Apache 2.4.9 (likely to be nginx in production though), PHP 5.5.12, Magento CE 1.9.0.2.
Thanks in advance,
Ryan
/*************************UPDATE*********************************/
Hi again everyone,
So I've noticed there is a pattern to how this problem/bug/whatever comes around. So, this is my admin url:
http://magento.example.local/admin_system/
If I go to this url, I am able to login and then this issue happens. At this point the url is now
http://magento.example.local/index.php/admin_system/[some_irrelevant_stuff]
So this is where it gets odd. If I then navigate to the original url I am once again redirected to the second url but the beginning of [some_irrelevant_stuff] is /index/denied/ (which I assume is relevant now haha).At this point I am provided the header of the Magento admin panel and I am able to logout.
OK so thats one part of the issue. If I then logout, or if I start my login process at /index.php/admin_system/ then I am able to log in and use the admin area as usual. So, the long and short of it is, I don't know what's going on but I'm hoping this extra info might get me more details.
Thanks for your time,
Ryan
Wow, I am genuinely surprised that nobody had an answer for this. Anyway, the following details are not so much an explanation as to what caused this issue, but a solution to stop it happening.
So, as you'll see from the edit of my question, I noticed that this seemed to have a bizarre connection to the URL and using different URLs to access the admin area (eg. /index.php/admin instead of /admin) caused different errrors. So for this reason, and because having index.php in all my admin area URLs, I took a look into rewriting the admin URLs. This is made available using this plugin: http://www.magentocommerce.com/magento-connect/admin-rewrites.html
If I'm not mistaken, I did not need to make any changes to the RewriteRule(s) that are set by default by magento so following the instructions on the plugin page above should work.
Either way, this appears to resolve the issue so I hope it helps someone having similar issues.
I'm designing a web application that can be customized based on which retail location the end user is coming from. For example, if a user is coming from a store called Farmer's Market, there may be customized content or extra links available to that user, specific to that particular store. file_exists() is used to determine if there are any customized portions of the page that need to be imported.
Up until now, we've been using a relatively insecure method, in which the item ID# and the store are simply passed in as GET parameters, and the system knows to apply them to each of the links within the page. However, we're switching to a reversible hash method, in which the store and item number are encrypted (to look something like "gd651hd8h41dg0h81"), and the pages simply decode them and assign the store and ID variables.
Since then, however, we've been running into an error that Googling extensively hasn't found me an answer for. There are several similar blocks of code, but they all look something like this:
$buttons_first = "../stores/" . $store . "/buttons_first.php";
if(file_exists($buttons_first))
{
include($buttons_first);
}
(The /stores/ directory is actually in the directory above the working one, hence the ../)
Fairly straightforward. But despite working fine when a regular ID and store is passed in, using the encrypted ID throws this error for each one of those similar statements:
Warning: file_exists() expects parameter 1 to be a valid path, string given in [url removed] on line 11
I've had the script spit back the full URL, and it appears to be assigning $store correctly. I'm running PHP 5.4.11 on 1&1 hosting (because I know they have some abnormalities in the way their servers work), if that helps any.
I got the same error before but I don't know if this solution of mine works on your problem you need to remove the "\0" try replace it:
$cleaned = strval(str_replace("\0", "", $buttons_first));
it worked on my case.
Run a var_dump(strpos($buttons_first,"\0")), this warning could come up when a path has a null byte, for security reasons. If that doesn't work, check the length of the string and make sure it is what you'd expect, just in case there are other invisible bytes.
It may be a problem with the path as it depends where you are running the script from. It's safer to use absolute paths. To get the path to the directory in which the current script is executing, you can use dirname(__FILE__).
Add / before stores/, you are better off using absolute paths.
I know this post was created on 2013 but didn't saw the common solution.
This error occurs after adding multiple to the file submit form
for example you are using files like this on php: $_FILES['file']['tmp_name']
But after the adding multiple option to the form. Your input name became file => file[]
so even if you post just one file, $_FILES['file']['tmp_name'] should be change to $_FILES['file']['tmp_name'][0]
At first apologies in advance if there is some problem in my ques, i am new to heroku ,my basic problem is i have some messed up code, where i want to test if i am able to fetch facebook variables in my own code and use them..
in my .php file i want to put name for person using my facebook app to displayname array variable of array and url of array should get the application users picture..i took the idea to assign these value via the index.php file provided by facebook itself.
My .php file code is :-
$basic = $facebook->api('/me');
$options = array(
'displayName' => he(idx($basic, 'name')),
'image' => array(
'url' => 'https://graph.facebook.com/'.he($id).'/picture?type=square',
'height => '48',
'width => '48'
)
);
but there is something wrong going here which i cant figure out.
i tried to debug it via javascript or other techniques but now able to connect the .php file to some .js file by any means to transfer variable values present in .php file and print them on my browser,i use to edit code at my own system and push it via git and since the code is executed at heroku i cant figure out what errors are creping in..i am using free account as per now so is there any way i can see my code in execution at heroku.. or any help to debug my code efficiently..
Edit1: alternatively is there any way i can pass these variable from my .PHP file to a separate .JS file and print variables in message box or something..any example code given will help a lot..there are many questions asked in this regard to transfer variables from separate .PHP file to separate .JS file..but i found no direct answer for it, all suggest workarounds but no direct way... questions i visited for it are ..
What's the best way to pass a PHP variable to Javascript?
Grab/input php variable in javascript?
and some more but dint find the perfect answer.
Edit2: if my ques needs more info plz let me know,and if second option is the choice left to debug my code ..then can someone give me an example with transferring variable/array present in testfile.php file say present at appfolder/php/lib/testfile.php and output it on browser in HTML format using testjs.js file say present at appfolder/lib/js/testjs.js
A common exchange format between PHP (or other language) and JavaScript is JSON. You can encode an array (or an php object) to json using json_encode, in PHP. Like this :
$options_json = json_encode($options);
So, you can write this javascript variable in your html results, like this :
echo '<script>var options = ', json_encode($options), ';</script>';
Your picture will then be accessible using javascript :
console.log(options);
console.log(options.url);