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• finding a way to track website users

  - by sdr

  hi all, I want to know that is there any way to know after which page an user is leaving the website. So that I can track that page and work to improve the content of that page. I am using PHP as backend code.

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• Should the function or the caller be resonsible for input validation?

  - by haudenschilt

  I'm doing a security audit on a fairly large php application and was wondering where I should include my user-input validation. Should I validate the data, then send the clean data off to the back-end functions or should I rely on each function to do it's own validation? Or even both? Is there any standard or best-practice for this sort of thing? Currently the app does both inconsistently and I'll like to make things more consistent.

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• Are PHP5 objects passed by reference?

  - by morpheous

  I cant seem to get any consistent info on this. Different sources appear to say different things and trhe venerable php.net iteslf (appears) not to explicitly state this - although I must admit, I only had a quick look. In cases where I am passing around 'heavy' objects, I need to pass by reference, but I dont want to keep typing: function foo(TypeName& $obj) if I can get away with simply, function foo(TypeName $obj) So what does the standard say?

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• Use text from XML document to create PDF?

  - by MMAmail.com

  I have some xml files that contain text, how can I can extract this text from the xml documents?(libraries etc?) how can I use this text to create a pdf document? I am working in a PHP environment, however if this is not the suitable language, I could change.

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• How to set up a database and API web page to accept POST updates from iPhone?

  - by lionfly

  Hi there, I am developing an iPhone app, which now can update Twitter account with GPS coordinates in real-time, by the Twitter API link: http://username:[email protected]/statuses/update.xml , and I am looking at how to make my own database to accept updates from iPhone, via a similar API page. It seems a .php page can serve as the API, and MySQL can serve as the database. What are the good ways of doing it? Any template code and tutorial please?

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• How can I get the full query string of a page

  - by wnoveno

  Hi, I'm using joomla and acesef as a plugin and I need to get the full querystring as is. The problem is when I use $_SERVEr['QUERY_STRING'] it contains the joomla QS isntead of my custom parameters. A javascript or PHP solution would do. thanks

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• check if a URI exists?

  - by noname

  How do I check if a URI exists with PHP? I guess it will return an error code and I can check it before I use file_get_contents, because if I use file_get_contents on a link that doesn't exist, it gives me an error.

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• MySQL greatest value in row?

  - by noryb009

  Hi! I'm using MySQL with PHP. This is like my table: (I'm using 3 values, but there are more) id | 1 | 2 | 3 1 | 3 |12 |-29 2 | 5 |8 |8 3 | 99|7 |NULL I need to get the greatest value in a certain row. If should get: (id - output) (1 - 2), (2-2), (3-1). Is there any queries for this? I've been trying, but I can't get it to work right.

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• Can str_replace be safely used on a UTF-8 encoded string if it's only given valid UTF-8 encoded stri

  - by Manos Dilaverakis

  PHP's str_replace() was intended only for ANSI strings and as such can mangle UTF-8 strings. However, given that it's binary-safe would it work properly if it was only given valid UTF-8 strings as arguments? Edit: I'm not looking for a replacement function, I would just like to know if this hypothesis is correct.

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• Use jQuery to Enable/Disable a Button based on vars

  - by Rylea S.

  Ok so, Im using jQuery to do username and email checks before a signup... this sets a variable true or false depending on the response from php. $(document).ready(function() { if (usr_checked == true) { if (em_checked == true) { $("#registerbttn").removeAttr("disabled"); } } else { $("#registerbttn").attr("disabled", "disabled"); } }); How exactly do i get it to watch those variables live? Thanks :D

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• How to share a session with a Erlang application

  - by xRobot

  I need to create a chat in Erlang. Is there a way to share the session between PHP and Erlang applications ?

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• accessor and mutator?

  - by fayer

  when using doctrine i stumble upon these 2 words: accessor and mutator. are these only used in doctrine or are they specific for php? and what do they mean? thanks

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• How to not allow users(or hackers) to download a file directly from web server?

  - by Starx

  If someone knew the link of one of my page or simply they made an assumption like http://ww.yourweb.com/index.php, this is a general assumption and if you put this link on DAP or other donwload manager, it will download file, with source code inside. I want to stop other from stealing my code on this manner, is there a way for this?

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• Symfony - Override sf_format when calling get_partial.

  - by deadwards

  I'm making an AJAX call in my symfony project, so it has an sf_format of 'js'. In the actionSuccess.js.php view, I call get_partial to update the content on the page. By default it looks for the partial in 'js' format since the sf_format is still set as 'js'. Is it possible to override the sf_format so that it uses the regular 'html' partial that I already have (so that I don't have to have two identical partials)?

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• Signs that a SQL statement is dangerous

  - by Matt

  Hi, I want to develop a function in PHP that checks how dangerous a SQL statement is. When i say dangerous i mean, certain symbols, characters or strings that are used to get data from a database that the user shouldnt see. For example: SELECT * FROM users WHERE userId = '1' can be injected in several ways. Although i clean the params, i also want to monitor how safe the query is to run. Thanks in advance

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• finding the number of 1's in my table in order

  - by bsandrabr

  I have a table of customers with a 1 recorded against their customerid on different dates. I would like to find the sum of the 1's recorded in descending order. I'm using MySQL and php Thanks

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• How to restrict http access to video files?

  - by Tharases

  I want to only let "right" people watch those videos. In other words, only registered users that are allowed (by other users, ie, friends) should see videos. I have a hard retriction for cpu usage in my shared environment, so I can use things like php's readfile.

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• Should Short tags be avoided as much as possible?

  - by sokiller

  In PHP there are different short tags like <? ................... ?>, <?=$hello;?>. But I wanted to know, if they should be avoided as much as possible? and Why?

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• Disable button until tabs have been read...

  - by jimbo

  I have some tabs which have been created using Javascript and Mootools, my client wants the 'next button' at the bottom of the page to be disabled, until the tabs have been read(clicked). The page is dynamic (created with PHP and MySQL) and there could be two tabs or three, depending on the set-up. I am struggling today to think of the best solution. Any help more than welcome...

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• What's the sql scheme for supporting Tags system?

  - by Tom

  Hi, i've coded a tiny forum software in php where people posts threads, and i want to support tags. How many SQL tables should i make for this ? and briefly how the tags system will work? Thanks

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• Many-to-many relationships examples

  - by Tom

  I haven't found any MYSQL many-to-many relationships examples here and in google. What I am looking is to see a very simple example with php+mysql showing database's results. Can anybody write a very simple example?

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• recaptcha problem please help me

  - by moustafa

  please see the following code // redirect to success page if ($success){ header( 'Location: ../Scripts/_lib/phpmailer-fe.php'); } else{ print "<meta http-equiv="refresh" content="0;URL=error.html">"; } its not working

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• locking save button for some time

  - by pradeep

  hi, i am using php,mysql,jquery. When a user clicks on save i go to back end and save data and show the response. once show the success i need to disable the save button for say 1 min. how do i do it.?

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• Preg_match if a string beginns with "00"{number} or "+"{number}

  - by streetparade

  Hy i have to test if a string begins with 00 or with + Say i have the string 0090 or +41 if the string begins with 0090 return true, elseif string begins with +90 replace the + with 00 else return false The last two digits can be from 0-9 How do i do that in php? I hope i could explain my question clear?

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• Timed planning Mysql database cleaning

  - by zizzamia

  We need to create a script (ajax or php or javascript) that will clean some tables from our database at fixed time. We can not use server features such like Cron tab or others. Any suggestions??? Thanks

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