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• PHP Special Characters Test

  - by pws5068

  What's an efficient way of checking if a username contains a number of special characters that I define. Examples: % # ^ . ! @ & ( ) + / " ? ` ~ < { } [ ] | = - ; I need to detect them and return a boolean, not just strip them out. Probably a super easy question but I need a better way of doing this than a huge list of conditionals or a sloppy loop.

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• add corresponding ascending integer to array entry php

  - by Scarface

  Hey guys I have an assigned array from mysql results and I simply want to number them starting at one. Does anyone know how to do this? while ($row=mysql_fetch_assoc($query)){ $out[] = array("ASSIGNED INTEGER", $row['total']); }

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• PHP XML Strategy: Parsing DOM to fill "Bean"

  - by Mike

  I have a question concerning a good strategy on how to fill a data "bean" with data inside an xml file. The bean might look like this: class Person { var $id; var $forename = ""; var $surname = ""; var $bio = new Biography(); } class Biography { var $url = ""; var $id; } the xml subtree containing the info might look like this: <root> <!-- some more parent elements before node(s) of interest --> <person> <name pre="forename"> Foo </name> <name pre="surname"> Bar </name> <id> 1254 </id> <biography> <url> http://www.someurl.com </url> <id> 5488 </id> </biography> </person> </root> At the moment, I have one approach using DOMDocument. A method iterates over the entries and fills the bean by "remembering" the last node. I think thats not a good approach. What I have in mind is something like preconstructing some xpath expression(s) and then iterate over the subtrees/nodeLists. Return an array containing the beans as defined above eventually. However, it seems not to be possible reusing a subtree /DOMNode as DOMXPath constructor parameter. Has anyone of you encountered such a problem?

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• PHP Key name array

  - by Sean McRaghty

  I have an array $data fruit => apple, seat => sofa, etc. I want to loop through so that each key becomes type_key[0]['value'] so eg type_fruit[0]['value'] => apple, type_seat[0]['value'] => sofa, and what I thought would do this, namely foreach ($data as $key => $value) { # Create a new, renamed, key. $array[str_replace("/(.+)/", "type_$1[0]['value']", $key)] = $value; # Destroy the old key/value pair unset($array[$key]); } print_r($array); Doesn't work. How can I make it work? Also, I want everything to be in the keys (not the values) to be lowercase: is there an easy way of doing this too? Thanks.

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• How do I display a local html file in a UIWebView?

  - by Thomas

  I have a relatively simple question that I cannot seem to find the answer for. While doing the Google Maps Java API Tutorials, I ran into a problem. I can load an HTML file from the web, but when I try it locally, it just displays the contents of the file instead of running the script. Here's what works: NSString *url = @"http://code.google.com/apis/maps/documentation/v3/examples/geocoding-simple.html"; NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]]; [webView loadRequest:request]; I want to store the HTML file locally and run it from the device itself, so I tried: [webView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"geocoding-simple" ofType:@"html"]isDirectory:NO]]]; and it just displayed the contents of the file. What am I doing wrong here? Thomas

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• PHP - static DB class vs DB singleton object

  - by Marco Demaio

  I don't want to create a discussion about singleton better than static or better than global, etc. I read dozens of questions about it on SO, but I couldn't come up with an answer to this SPECIFIC question, so I hope someone could now illuminate me buy answering this question with one (or more) real simple EXAMPLES, and not theoretical discussions. In my app I have the typical DB class needed to perform tasks on DB without having to write everywhere in code mysql_connect/mysql_select_db/mysql... (moreover in future I might decide to use another type of DB engine in place of mySQL so obviously I need a class of abstration). I could write the class either as a static class: class DB { private static $connection = FALSE; //connection to be opened //DB connection values private static $server = NULL; private static $usr = NULL; private static $psw = NULL; private static $name = NULL; public static function init($db_server, $db_usr, $db_psw, $db_name) { //simply stores connections values, withour opening connection } public static function query($query_string) { //performs query over alerady opened connection, if not open, it opens connection 1st } ... } or as a Singletonm class: class DBSingleton { private $inst = NULL; private $connection = FALSE; //connection to be opened //DB connection values private $server = NULL; private $usr = NULL; private $psw = NULL; private $name = NULL; public static function getInstance($db_server, $db_usr, $db_psw, $db_name) { //simply stores connections values, withour opening connection if($inst === NULL) $this->inst = new DBSingleton(); return $this->inst; } private __construct()... public function query($query_string) { //performs query over already opened connection, if connection is not open, it opens connection 1st } ... } Then after in my app if I wanto to query the DB i could do //Performing query using static DB object DB:init(HOST, USR, PSW, DB_NAME); DB::query("SELECT..."); //Performing query using DB singleton $temp = DBSingleton::getInstance(HOST, USR, PSW, DB_NAME); $temp->query("SELECT..."); My simple brain sees Singleton has got the only advantage to avoid declaring as 'static' each method of the class. I'm sure some of you could give me an EXAMPLE of real advantage of singleton in this specific case. Thanks in advance.

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• Use SQL Result to Query second time and grab more results via php

  - by maxwell

  I am grabbing a list of school names from a database. When the user clicks on the school name, i want the code to fetch 2-3 other attributes related to the school name that the user has clicked on. My code for the single school name list: $query = mysql_query("Select schoolname, product, username, password from credentials c join products p on p.productid = c.productid join schools s on s.schoolid = c.schoolid join icons i on i.productid = p.productid order by s.schoolname"); echo '<ul>'; while($row = mysql_fetch_array($query)) { echo "<li> <a href='#'>" . $row['schoolname'] . "</a> </li>"; } echo ''; Current Output: School A School A School B School B School B School C School C Expected Output: School name displayed only once (distinct won't work because each school name has 2-3 product credentials School A School B School C Ability for User to click on a school. then the school names underneath will move down (toggle effect) and user can see product, username and password displayed for the school clicked (for example: user clicked on School A) School A productname1, username, password productname2, username, password School B School C

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• Multi page ordering form php or ajax

  - by Adam

  I'm looking to create a multi page ordering form the first page would contain some dropdown and text fields, the second page would contain more text fields, the third page would be an order summery with paypal payment option. I'm just wondering what the best way to create this order form is. I've used sessions in the past but never with users entering in text and picking items from drop downs, does anyone have any resources for doing this? Or does anyone know of a jquery or other ajax example or plugin I might be able to use and modify. any insight would be a big help. thanks

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• Making CSV from PHP - Carriage return won't work

  - by DMin

  Seems like a fairly simple issue but can't get it to work. I am getting the user to download a csv file(which works fine). Basically I can't get the carriage return to work. header("Content-type: text/x-csv"); header("Content-Disposition: attachment; filename=search_results.csv"); echo '"Name","Age"\n"Chuck Norris","70"'; exit; Result : Name     Age\n"Chuck Norris"    70 Tried : echo '"Name","Age",\n,"Chuck Norris","70"'; Result : Name     Age    \n    Chuck Norris    70 And echo '"Name","Age",\n\r,"Chuck Norris","70"'; Result : Name     Age    \n\r    Chuck Norris    70 Know what's going wrong?

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• PHP strlen question

  - by MrEnder

  Ok I am checking that a string is at least 4 characters long and 25 or less characters short I tried to use strlen like this $userNameSignupLength = strlen($userNameSignup); else if($userNameSignupLength<4 && $userNameSignupLength>25) { $userNameSignupError = "Must be between 4 to 25 characters long"; } but it doesn't work... what did I do wrong?

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• PHP parsing XML file with and without namespaces

  - by Mike

  I need to get a XML File into a Database. Thats not the problem. Cant read it, parse it and create some Objects to map to the DB. Problem is, that sometimes the XML File can contain namespaces and sometimes not. Furtermore sometimes there is no namespace defined at all. So what i first got was something like this: <?xml version="1.0" encoding="UTF-8"?> <struct xmlns:b="http://www.w3schools.com/test/"> <objects> <object> <node_1>value1</node_1> <node_2>value2</node_2> <node_3 iso_land="AFG"/> <coords lat="12.00" long="13.00"/> </object> </objects> </struct> And the parsing: $t = $xml->xpath('/objects/object'); foreach($nodes AS $node) { if($t[0]->$node) { $obj->$node = (string) $t[0]->$node; } } Thats fine as long as there are no namespaces. Here comes the XML File with namespaces: <?xml version="1.0" encoding="UTF-8"?> <b:struct xmlns:b="http://www.w3schools.com/test/"> <b:objects> <b:object> <b:node_1>value1</b:node_1> <b:node_2>value2</b:node_2> <b:node_3 iso_land="AFG"/> <b:coords lat="12.00" long="13.00"/> </b:object> </b:objects> </b:struct> I now came up with something like this: $xml = simplexml_load_file("test.xml"); $namespaces = $xml->getNamespaces(TRUE); $ns = count($namespaces) ? 'a:' : ''; $xml->registerXPathNamespace("a", "http://www.w3schools.com/test/"); $nodes = array('node_1', 'node_2'); $obj = new stdClass(); foreach($nodes AS $node) { $t = $xml->xpath('/'.$ns.'objects/'.$ns.'object/'.$ns.$node); if($t[0]) { $obj->$node = (string) $t[0]; } } $t = $xml->xpath('/'.$ns.'objects/'.$ns.'object/'.$ns.'node_3'); if($t[0]) { $obj->iso_land = (string) $t[0]->attributes()->iso_land; } $t = $xml->xpath('/'.$ns.'objects/'.$ns.'object/'.$ns.'coords'); if($t[0]) { $obj->lat = (string) $t[0]->attributes()->lat; $obj->long = (string) $t[0]->attributes()->long; } That works with namespaces and without. But i feel that there must be a better way. Before that i could do something like this: $t = $xml->xpath('/'.$ns.'objects/'.$ns.'object'); foreach($nodes AS $node) { if($t[0]->$node) { $obj->$node = (string) $t[0]->$node; } } But that just wont work with namespaces.

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• Eager loading vs. many queries with PHP, SQLite

  - by Mike

  I have an application that has an n+1 query problem, but when I implemented a way to load the data eagerly, I found absolutely no performance gain. I do use an identity map, so objects are only created once. Here's a benchmark of ~3000 objects. first query + first object creation: 0.00636100769043 sec. memory usage: 190008 bytes iterate through all objects (queries + objects creation): 1.98003697395 sec. memory usage: 7717116 bytes And here's one when I use eager loading. query: 0.0881109237671 sec. memory usage: 6948004 bytes object creation: 1.91053009033 sec. memory usage: 12650368 bytes iterate through all objects: 1.96605396271 sec. memory usage: 12686836 bytes So my questions are Is SQLite just magically lightning fast when it comes to small queries? (I'm used to working with MySQL.) Does this just seem wrong to anyone? Shouldn't eager loading have given much better performance?

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• effective retrieve for a voting system in PHP and MySQL

  - by Adnan

  Hello, I have a system where registered users can vote up/vote down comment for a picture. Something very similar to SO's voting system. I store the votes in a table with values as such; vote_id | vote_comment_id | vote_user_id | vote_date | vote_type Now I have few a question concerned the speed and efficiency for the following; PROB: Once a user opens the picture page with comments I need, if that user has already voted UP/DOWN a comment to show it like; "you voted up" or "you voted down" next to the comment (in SO it the vote image is highlighted) MY POSSIBLE SOL: Right now when I open a picture page for each comment I loop thru, I loop thru my table of votes as well and check if a user has voted and show the status (I compare the vote_user_id with the user's session). How efficient is this? Anyone have a better approach to tackle this kind of problem?

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• Banning by IP with php/mysql

  - by incrediman

  I want to be able to ban users by IP. My idea is to keep a list of IP's as rows in an BannedIPs table (the IP column would be an index). To check users' IP's against the table, I will keep a session variable called $_SESSION['IP'] for each session. If on any request, $_SESSION['IP'] doesn't match $_SERVER['REMOTE_ADDR'], I will update $_SESSION['IP'] and check the BannedIPs table to see if the IP is banned. (A flag will also be saved as a session variable specifying whether or not the user is banned) Here are the things I'm wondering: Does that sound like a good strategy with regards to speed and security (would someone be able to get around the IP ban somehow, other than changing IP's)? What's the best way to structure a mysql query that checks to see if a row exists? That is, what's the best way to query the db to see if a row with a certain IP exists (to check if it's banned)? Should I save the IP's as integers or strings? Note that... I estimate there will be between 1,000-10,000 banned IP's stored in the database. $_SERVER['REMOTE_ADDR'] is the IP from which the current request was sent.

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• 500 internal server error running php file in cgi-bin

  - by vvvvvvv

  500 internal server error is shown when i access http://mysite.com/cgi-bin/test.php test.php <p> title here</p> <?php echo "hi"; ?> error log shows (8)Exec format error: exec of '/var/www/cgi-bin/test.php' failed'. Premature end of script headers: test.php. solved it by adding AddHandler application/x-httpd-php .php

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• How to operate access with PHP?

  - by Mask

  I have no experience with access. How to do update/insert/delete/select statement with and without $rs = new com("ADODB.RecordSet"); ?

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• Short unique id in php

  - by Antti

  I want to create a unique id but uniqid() is giving something like '492607b0ee414'. What i would like is something similar to what tinyurl gives: '64k8ra'. The shorter, the better. The only requirements are that it should not have an obvious order and that it should look prettier than a seemingly random sequence of numbers. Letters are preferred over numbers and ideally it would not be mixed case. As the number of entries will not be that many (up to 10000 or so) the risk of collision isn't a huge factor. Any suggestions appreciated.

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• Checking for a valid and in-use email address in PHP

  - by espais

  I'm not sure if this is exactly possible, but figured I'd throw it out there. I have a client that is getting some hate-mail from somebody he knows via a contact form on a website that I developed for him. Currently I do the normal checks for a validly-formatted email address, along with a Captcha, but the client has requested that a user enter his/her own email address in the form. Now I realize that something like this could be easily spoofed by setting up a fake Yahoo account, etc, but the client's thinking is that this person is not quite that computer-literate. Is there any possibility for checking if an email address is valid and in-use? The only other things I can think of is turning his contact form into a mailto: link.

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• php array in url from json

  - by mcgrailm

  Here is what I want to do: I have some json like this var foo = { format:"json", type:"test", id:"26443" }; and I awant to put that in a url like this 'http://example.com/a:3:{s:6:"format";s:4:"json";s:4:"type";s:5:"test";s:2:"id";s:5:"26443";}' which I will then put into ajax call but everything I have tried results in error 501 BAD URI could someone tell me how to do this I've tried this function js_array_to_php_array(a) { var a_php = ""; var total = 3; for (var key in a){ total; a_php = a_php + "s:" + String(key).length + ":\"" + String(key) + "\";s:" + String(a[key]).length + ":\"" + String(a[key]) + "\";"; } a_php = "a:" + total +":{" + a_php + "}"; return a_php; } which I found out on the web but had to mod to get to run but still no luck

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• Check if a php script is still running

  - by Nirmal

  I have a script that listens to a jabber server and responds accordingly. Though it's not supposed to stop, last night it did. Now I want to run a cron job every minute to check if the script is running, and start it if not. The question is, how do I check if a particular script is still running? Some solutions have been posted here, but those are all for Linux, while I am looking for a Windows solution. Any ideas please? Thanks.

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• How do I convert HTML to RTF (Rich Text) in .NET without paying for a component?

  - by Josh Kodroff

  Is there a free third-party or .NET class that will convert HTML to RTF (for use in a rich-text enabled Windows Forms control)? The "free" requirement comes from the fact that I'm only working on a prototype and can just load the BrowserControl and just render HTML if need be (even if it is slow) and that Developer Express is going to be releasing their own such control soon-ish. I don't want to learn to write RTF by hand, and I already know HTML, so I figure this is the quickest way to get some demonstrable code out the door quickly.

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• PHP HttpRequest Cookie Issue

  - by Daaron

  I have a chunk of code to login to test a web site login: $r = new HttpRequest($newlocation, HttpRequest::METH_GET); $r-addCookies($cookieArray); $r-send(); The content of $cookieArray is from a redirect, but I don't modify it in any way. The really baked part is that if the value of the cookie (an authentication token string) contains a slash, it doesn't login properly. If it doesn't have a slash, everything works. Any ideas are appreciated.

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• Sending Bulk Emails using PHP

  - by Rose

  Hi All I have to send mails to all users in the site when a new user joins. My problem is the script stops execution after sending around 400 mails. I have set the set_time_limit to 0. And also I am giving sleep(2) after sending 10 mails. What may be the reason behind this issue.Any solution for this problem . Is there any better method to send bulk emails? Thanks in Advance Rose

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• PHP Scope Resolution Operator Question

  - by anthony

  I'm having trouble with the MyClass::function(); style of calling methods and can't figure out why. Here's an example (I'm using Kohana framework btw): class Test_Core { public $var1 = "lots of testing"; public function output() { $print_out = $this->var1; echo $print_out; } } I try to use the following to call it, but it returns $var1 as undefined: Test::output() However, this works fine: $test = new Test(); $test->output(); I generally use this style of calling objects as opposed to the "new Class" style, but I can't figure out why it doesn't want to work.

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• PHP REGEX - text to array by preg_split at line break

  - by aSeptik

  Hi All! EDITED: need help on split Array array example: $text = array ( [0] => TEXT1:some normal text TEXT2:some long text here, and so on... sometimes i'm breaking down and... TEXT3:some normal text TEXT4:some normal text [1] => TEXT1:some normal text TEXT2:some long text here, and so on... sometimes i'm breaking down and... TEXT3:some normal text TEXT4:some normal text ) ok, now by using preg_split( '#\n(?!s)#' , $text ); i get [0] => Array ( [0] => some normal text [1] => some long text here, and so on... sometimes [2] => some normal text [3] => some normal text ) As you can see the [1] Element of the Array is cutted off! i want keep this line entirely: some long text here, and so on... sometimes i'm breaking down and... what Regex can get the entire line and also split at line break!?

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