my XAMPP is activated but the Ajax scripts are not working. It should really work because I got it from a book and double checked the codes and the connections for the database but it didn't work.
Whats the problem anyhow?
The code is located on Chapter 5 http://www.myphpbook.com/download
I just started to programming so I dont have any idea how to make this work.
I assume you have JavaScript code making a request from PHP code. Is the JavaScript making the request? You can use Firebug to set breakpoints and see network requests.
Is the PHP code that serves the request running?
Was everything going well before Chapter 5?
Related
This is a very similar to the question posed at Use php and simPro API to list customers.
The response to that question suggests downloading examples from GitHub. I have downloaded the SimPro examples at GitHub and have them functioning on the commandline.
I want to be able to use a web page as an intermediary between my FileMaker Pro database and the SimPro API. I can pass data to a web page written in PHP. It can convert the data to JSON and form a call to SimPro receive a response and display the success or failure as a web page.
Presently I have my JSON data hardcoded so that I can test the process. When run from a web browser I don't get a result, though the code works perfectly well running from the command line.
I'm not sure what I need to do make the examples web compatible. Can someone push me in the right direction?
Would be more than happy to help - could you post a snippet of your code - minus the auth info of course - so that I can try to assist?
Do you have your code printing anything else to the browser first - so that you make sure the script is actually executing as it should from the web server side - and have you checked your web server logs for any errors?
In some cases I've seen this is usually due to PHP config (there are separate configs for CLI and CGI in most setups) and can mean whilst libraries are loaded in one environment they may not be available to the other. The web server also usually requires a reload if you have just loaded libraries for use within your script.
Hope that helps.
I have been running a web service off of a php file. For no apparent reason (possibly some settings changes?), it now suddenly does not "notice" the posted request.
When I echo var_dump($_POST), I get a 0-length array. If I post the same request the same way on a different script, it works fine. This different script is hosted on a different server.
Do you guys have any idea what configuration may have been accidentally changed s.t. my php script does not get the post requests?
Thanks!
I'd start with the rewrites. Rewriting for example to a full url (http://...) would cause POST information to get lost.
I have an Android application that is connectiont to a web server running MySQL DB. On the web server I have php files that run scripts and return JSON Objects to the client (application). I recently upgraded the versions of my web server and as of then, the SELECT statements are no longer returning anything to the client if they have parameteres, however if I run a SELECT with no parameters, it works fine. Has anyone ever encountered a similar problem?
To be more clear about my question:
Is there anyway I can debugphp scripts?
I thought maybe debugging via a web browser wouldn't work because the client is triggering the php files directly and not a direct access to the web.
All help is much appreciated!
Chrome has a set of tools that let you remote debug from your android.
Check them out: https://developers.google.com/chrome-developer-tools/docs/remote-debugging
You could wirte your own error handler an let him wirting some debug informations to a own log-file. than you can read the log file and check it for errors
Look at the MySQL error log and the php error log on your server
Check you activated the correct php_mysql* extensions in the newly upgraded PHP
Run the scripts on the server through a browser with the same parameters that your app uses, watch for errors
Upgrade the PHP code running on the server so it captures any errors and does something OBVIOUS with them.
I would recommend to use XDEBUG for debugging PHP code, or any analogue for yours web server. It is really simple to set-up and use it with any PHP IDE (like Netbeans) and it gives you a lot of abilities to explore your application condition. There is no difference in what browser you will open link with ?XDEBUG_SESSION_START=netbeans-xdebug parameter.
Also you can watch MySQL and Web-server logs.
If you cannot do anything above and you need to watch network action (AJAX requests), you can set-up ADB and use chrome developer console for debugging js (or to see php var_dump() in ajax calls) in you android chrome browser.
If you need to debug js in native android browser - try to redirect to "about:debug" page, and after this you will be able to see browsers js console (in some cases this button appears only when console has something to show - error or any othe message, in some cases it just doesn't work).
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As mentioned by others, you can debug using the error logs given by mysql and php. There are also IDEs which come with debugging tools for scripting languages like php.
With an IDE like phpStorm by JetBrains, which I highly recommend using over just a normal text editor, you can configure data sources like a connection to your MySQL db. This is useful because you can run scripts in the IDE and see whether it's the retreival of the data from your db or something in your scripts or handling of the JSON object back in the client. So if you configure a data source and run those same scripts and you get the correct data back then you know there is either something wrong in the code where you send the data or something wrong in the code where you receive it.
**p.s. I know that I am 5 years (oh my days its been 5 years since 2013) late to this post but none the less you never know who may be having this same issue and they stumble accross this answer
1st - Setup Xdebug for remote debugging with your IDE(Eclipse, PHPStrom, etc), and put breakpoints in your script.(for example here's link for setting up eclipse envirompment).
2-nd - When sending your url request to server add parametres to your url(http://your/url.php&XDEBUG_SESSION_START=ECLIPSE_DBGP&KEY=XXXXX,
-1st parameter - XDEBUG_SESSION_START=ECLIPSE_DBGP starts debugging session. (as for me I am using eclipse IDE for developing, so my key will be ECLIPSE_DBGP).
-2nd parameter - KEY=XXXXXX - is a session number(type any number here).
After that you'll get your code breaks at your debugging point in your script.
Iam new to WebServer and iam using NanoHttpd , Everything work fine and i can connect to my phone using my web browser on my Computer, my problem is that iam trying to run a Php file manager app, called 'fsmanager' , work fine on my website i can browse my files etc, in my index.html i have a simple tag that target fsmanager.php, when i click it, im asked to download the php file, i have tried to add mime type php application/php etc with no luck, source code is same as NanoHttpd,
Any help would be appreciated, Thanks.
Take a look at "Quercus" (http://quercus.caucho.com/) from the folks who make the Resin App-Server. Its a complete implementation of PHP version 5 that runs on the JVM, as a servlet.
While NanoHttpd doesnt support the servlet API specifically, I am sure that you could write hooks to and from Quercus to get something running with NanoHttpd. That would be a fabulous extension to the existing webserver code! :-)
nanohttpd is purely an HTTP server, it will not execute PHP files on it's own.
I keep getting this error:
No data received
Unable to load the webpage because the server sent no data.
Here are some suggestions:
Reload this webpage later.
Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection without sending any data.
I know it's part of my script, but I don't know which part. It divides certain text into a few different files, and those files are being created, but it's also supposed to zip them, but it's not getting to that part, so I have a vague idea of the general area the problem is occurring. I know this entire question is lacking detail, but I'm hoping that someone who has more experience with PHP and who may have seen the error before would be able to tell me what's happening.
http://gyazo.com/12ba55613011a115bb7507040f4d3ddf
EDIT: It works on Firefox... How can it be different between browsers if it's server-side script?
Restart apache and mysql
service httpd restart
service mysqld restart
Hopefully this answer helps someone.
It's a Chrome thing: http://www.google.com/support/forum/p/Chrome/thread?tid=7d50c093bd4f8f6c&hl=en
I don't know if you've already solved this, if it's a different problem causing the same symptoms or whatever, but yesterday I noticed this same error on my development machine, running Apache+PHP+MySQL under Linux, when accessing my local phpMyAdmin:
http://localhost/phpMyAdmin
It was running fine until that day, and I realized that by the same time I changed some settings related to sessions in my php.ini.
The problem was caused by having session.save_handler set to user instead of files. So I switched back to
session.save_handler = files
and voilà... everything is working fine again.
Also be sure to have set the proper session.save_path. In my case, and probably in most Linux systems,
session.save_path = "/tmp"
Be sure to set the proper permissions to that directory, too. Mine is chmod'ed to 777.
A little late to the draw here, but I received this error while working on a local copy of a php project (on Chrome), and although Firefox loaded some parts of the pages, it was still throwing similar errors.
The really weird part was that if I commented out includes or a few functions it would load partially.
I got around it by restarting the local server. I was using MAMP. You can tell for sure that this is the issue if you're running MAMP by going to the home page - it'll likely throw the same error.
tail -f /opt/local/apache2/logs/error_log
(or wherever is your apache2 install..)
... Will likely help you to spot where the problem lies in your PHP script. At least it did for me when facing the same problem (No data received, whatever the browser).
I was getting this issue intermittently in Chrome. For me, reloading the page would get a successful (non-empty) response, but it would sometimes take up to 3 or 4 reloads of the page. To handle this, I added the $.when(), .done(), and .fail() jQuery functions to my AJAX request. If the request fell into the .fail() function, I ran the location.reload(); js command to get the page to reload. Otherwise, I called a function that did the rest of my page loading in the .done() function.
This has the potential to create an infinite loop with the page never receiving a successful AJAX response and continuing to reload forever. So only try out this method if this issue is intermittent. If you are unable to get a successful AJAX response at all, then this method will not work for you.