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• PHP regex replace white space by &nbsp; if it is following single letter

  - by WebXpert

  Hi, I have user defined string (html formated string to be saved and used in web) and need to find a way to replace each white space which is right after a single letter by &nbsp;. For example "this is a string" should become "this is a&nbsp;string", "bla bla b l abla b la blabla" should become "bla bla b&nbsp;l&nbsp;abla b&nbsp;la blabla" ...etc...

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• Writing To The Response in Rails? (Like "echo" in PHP)

  - by Yar

  I know that I can do this in Rails: <%="hello" %> but is there any way to do this <% echo "hello" %> and get it to show up in the response? I have tried response.write which almost worked, but did not... Edit: print or puts do not do it, because I do not want to write to the console. I want to write to the browser/HTTP client. Edit: Here is an example: <% unless @research_activities.size == 0 concat(render(:partial => 'list')) end %> Why would I want to include two closing tags just to do that? It reads nicely in code, doesn't it?

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• will PHP header() & exit() securely terminate a script before redirecting?

  - by Haroldo

  Is the following a secure way of protecting a user only area? if(!isset($_SESSION['username'])){redirect(SITE_ROOT . 'st_pages/login/');} using: function redirect($url) { header('Location: ' . $url); exit('<a href="' . $url . '">Redirecting you to: ' . $url . '</a>'); }

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• How to find if string contains letters and spaces (php)?

  - by Ole Jak

  So I need to get value false or true if string contains not only letters of all european and east alphabets and " "(space) and "-" minus. How to do such thing with some $a string?

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• How to new an instance and run in a single line in PHP?

  - by user198729

  (new className)->methodName(); The above will give a Parse error

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• PHP SQL, SELECT corresponding data from 3 tables at once?

  - by user346325

  I have 3 tables, 'u' 'd' 's' 'u' has userid divid 'd' has divid divname 's' has sname primaryuserid secondaryuserid Now what I'd like to do is display a table with rows of the following format userid, divname, sname Plus figure out a way to decipher whether userid is a primary or secondary for this sname table. I'm able to show userid and divname using a left join, but I don't know how I would add a third table? To make it trickier, there can be more than 1 snames for each userid, up to ~20. Is there a way to display 0-20 snames depending on the userid, seperated with commas?

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• PHP "header (location)" isnide IFRAME, to load in _top location?

  - by Spoonk

  Hi Webmasters. I have a simple form which is inside IFRAME. When user click on SUBMIT, it redirects to a specific page on my server. The function I use for the redirect is header ('Location: mypage2.html'); exit (); But I want the new page to open in _top location, not inside the same IFRAME that I use. How can I tell the browser to open the new page in _top not inside the IFRAME? Thanks in advance.

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• I am looking for a script (php prefably) to give me all the links of a site

  - by Michael

  Hello, I have come across lots of code which will find all the links on a page. I would like something that takes it a step further and finds it for the whole site. Spidering the links is a little trickier than in seems! Any idea will be greatly received.

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• PHP Passing Data to a Specific Class? (Data Encapsulation)

  - by Adam184

  I've learned that OOP is all about data encapsulation, but what about passing data between classes that have nothing to do with each other (would the below example be worthy of using extends)? class Dog { private $secretVar; public function getSecretVar() { $this->secretVar = 'psst... only for rainbow!'; return $this->secretVar; } } class Rainbow { public function __construct(Dog $Dog) { print_r($Dog->getSecretVar()); } } $Dog = new Dog(); $Rainbow = new Rainbow($Dog); // ... classes that don't need the $secretVar How would you encapsulate $secretVar for only classes Dog and Rainbow? As of now, anyone can call getSecretVar(), and I'm having a hard time allowing that to happen as it seems to defeat the whole point of encapsulation.

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• In PHP: Declaring an array or initializing an array?

  - by idrinkbeertopeesquirrrrrr

  Technically speaking, how would you call creating a variable of the array type (ie. $arr= array();): declaring an array or initializing an array?

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• Is there a way to find out how many times a class has been instantiated in php?

  - by sprugman

  I'm currently using this method: class Foo { private static $num_instatnces = 0; function __construct() { self::$num_instances++; } } which seems to work, but I'm wondering if there's a built in way....

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• In PHP how do you format a number as currency handling cases such as 10 cents equaling "$.1";

  - by stormist

  I currently do: $totalBill = number_format($totalBill, 2); $totalBill = '$'.$totalBill; This does not handle cases though where the total is say 10 cents. It returns "$0.1" which I do not want. Does anyone have a better way?

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• How to get the value of an attribute from XML file in PHP?

  - by Matt

  Hi, Sorry if this seems like an easy question, but I've started pulling hair out on this... I have a XML file which looks like this... <VAR VarNum="90"> <option>1</option> </VAR> I'm trying to get the VarNum. So far I've been successful using the follow code to get the other information: $xml=simplexml_load_file($file); $option=$xml->option; I just can't get VarNum (the attribute value I think?) Thanks!

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• Is there any differents between $GLOBALS["test"] and global $test?

  - by PHP-Prabhu

  can any one please let me know the basic differences between $GLOBALS["test"] and global $test and, will it make sense that, if i use $GLOBALS["test"] instead of $_SESSION['test']?

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• PHP: how to know that all letters in a string are upper case?

  - by ockel

  How to know that all letters in a string are upper case?

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• Is this the correct syntax for 'array_unique()' in PHP?

  - by patrick

  I want to get rid of duplicates in my array but I'm still printing duplicates with this: $getuser = ltrim($top10['url'], " users/" ); //trim url to get user id $array[$i++] = $getuser; $dirty = $array; $clean = array_unique($dirty); print_r($clean)."<br />";

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• What's the equivalent of virtual functions of c++ in PHP?

  - by user198729

  Is it abstract function xxx?

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• How to create a search system in Website using PHP?

  - by samesame

  Hi, I am pretty new to web development and I want to create a search system on my webpage, but I dont have any idea how to? This search system must be able to search everything that is displayed on the webpage. Please help me.

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• SQL & PHP - Which is faster mysql_num_rows() or 'select count()'?

  - by Joel

  I'm just wondering which method is the most effective if I'm literally just wanting to get the number of rows in a table. $res = mysql_query("SELECT count(*) as `number` FROM `table1`"); $count = mysql_fetch_result($res,0,'number'); or $res = mysql_query("SELECT `ID` FROM `table1`"); $count = mysql_num_rows($res); Anyone done any decent testing on this?

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• Does PHP's APC reclaim memory after apc_delete() is called?

  - by haigek

  More generally, does anyone know where the way APC works internally is documented?

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• Can I say if(4 < $a < 44) instead of if(4 < $a && $a < 44)? (php)

  - by Ole Jak

  Can I use if(4 <= $a <= 44) instead of if(4 <= $a && $a <= 44)?

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• Desperate help using PHP's $_SERVER["DOCUMENT_ROOT"] on a web server?

  - by Nickersoft

  I've spent the past few months building a website on localhost. Throughout the site, instead of using relative paths, I used $_SERVER["DOCUMENT_ROOT"] to access the root of my server so I could reference files from there. However, I just decided to upload my site to 000webhost. As I soon found out, and for those of you who use them, you are probably aware, that their server root is different than your actual directory in which you upload your files. I believe it's virtual hosting... anyway, my $_SERVER["DOCUMENT_ROOT"] now throws errors along the lines of this on the site: Warning: include_once() [function.include-once]: open_basedir restriction in effect. File(/usr/local/apache/htdocs/mypath) is not within the allowed path(s) Every other site I looked at said that you should just replace $_SERVER["DOCUMENT_ROOT"] with the home directory provided to you by 000webhost. However, if I want to change hosting services in the future, I'm screwed. Is there any way to use $_SERVER to access a set virtual directory or use htaccess or something to make my code work? I tried using DocumentRoot in a htaccess file in my root directory, but it threw a 404 error when trying to access the page. I'm in desperate need... can anyone help me?

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• It is possible sum values by keys? how do it (php)

  - by BaskoAndrey

  Array for example $array = Array ( [0] = Array ( [first] = 5 ) [1] = Array ( [first] = 4 ) [2] = Array ( [second] = 3 ) ); How sum values by keys for result $first with value 9 and $second - 3 thanks in advance

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• How can I randomly execute code 33% of the time in PHP?

  - by iTayb

  I'm not so sure how to write this: I want to generate a random number from 0 to 2, then write an if statement which executes specific code only 33% of the time. This is what I tried to do: if (rand(0, 3)=="2") { echo "Success" }; Thank you very much!

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• Mac Text Editor (with function list)

  - by Meep3D

  So I've got a Mac in the post coming to me, and will probably be doing quite a bit of development on it so I am looking for a text editor (PHP + HTML mainly). I curently use Notepad++ on Windows and I simply cannot live without the function list plugin (It displays all functions in the current PHP file in a box on the right). Do any Mac text editors have this functionality? I am fairly sure that Notepad++ isn't available on an Apple. Thanks!

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