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• PHP Sessions - Locking and Sharing questions

  - by Nuno Peralta

  Hi, I would like to know if it is possible to read $_SESSION attributes without locking it. Currently, session_start() locks SESSION, that means other PHP processes will wait until it is unlocked. But, some processes just want to get some $_SESSION variables, not to write on them. Is that possible to implement some function like session_get(string $id) which doesn't lock SESSION? Also, it is possible to share SESSIONs between browsers, once the user is logged in the same account, for example, using session_id('shared_vars_of_'.$userid). But, is that secure? Is this discouraged? Thanks, Nuno

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• Replace whitespaces using PHP preg_replace function ignoring quoted strings

  - by Saiful

  Look at the following string: SELECT column1 , column2, column3 FROM table1 WHERE column1 = 'text, "FROM" \'from\\\' x' AND column2 = "sample text 'where' \"where\\\" " AND ( column3 = 5 ) I need to escape unnecessary white space characters from the string like: removing white space from beginning and ending position of , ( ) etc removing newline (\r\n) and tabs (\t) But one thing. The remove process could not remove white spaces from the quoted string like: 'text, "FROM" \'from\\' x' "sample text 'where' \"where\\" " etc. i need to use the PHP function: preg_replace($pattern, $replacement, $string); So what will be the value of $pattern and $replacement where the value of $string is the given SQL.

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• PHP making input from web form case insensitive?

  - by Haskella

  So I have some code here that takes user input from a standard web form: $searchsport = $_POST['sport']; $sportarray = array( "Football" => "Fb01", "Cricket" => "ck32", "Tennis" => "Tn43", ); if(isset($sportarray[$searchsport])){ header("Location: ".$sportarray[$searchsport].".html"); die; } How would I go about modifying this (I think the word is parsing?) to make it case *in*sensitive? For example, I type in "fOoTbAlL" and php will direct me to Fb01.html normally.

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• Printing All Entries in A PHP Table

  - by mgunawan

  I'm trying to insert a php excerpt with SQL (I understand this is outdated, but am trying to grasp the syntax first) into my HTML page, and I've got the following table: ID Name Element1 Element2 0 John John's 1st John's 2nd 1 Bill Bill's 1st Bill's 2nd 2 Steve Steven's 1st Steve's 2nd I'm trying to get the for loop that will essentially print out the following in my html page Name: Name where ID=0 Element1: Element1 where ID=0 Element2: Element2 where ID=0 Name: Name where ID=1 Element1: Element1 where ID=1 Element2: Element2 where ID=1 and so forth. Basically, I am trying to make this process automated so that whenever a new record is added into the table, the HTML page will automatically update with a new "profile". Thank you for your help!

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• PHP and JSON comment help..

  - by jay

  hi, guys thanks for looking my problem is that i cant seem to get jquery to display my generated data. here is my JSON output ("posts":[{"id":"1-2","time":"0","name":"dash","avatar":"http:\/\/www.gravatar.com\/avatar\/9ff30cc2646099e31a4ee4c0376091b0?s=182&d=identicon&r=PG","comment":"rtetretrete tet rt uh utert"},{"id":"2-2","time":"0","name":"james","avatar":"http:\/\/www.gravatar.com\/avatar\/d41d8cd98f00b204e9800998ecf8427e?s=182&d=identicon&r=PG","comment":"fsdfdfsdf\r\n"}]) and here is my jquery $(document).ready(function(){ var url="comments.php"; $.getJSON(url,function(json){ $.each(json.posts,function(i,post){ $("#content").append( '<div class="post">'+ '<h1>'+post.name+'</h1>'+ '<p>'+post.comment+'</p>'+ '<p>added: <em>'+post.time+'</em></p>'+ '<p>posted by: <strong>'+post.name+'</strong></p>'+ '<p>avatar: <strong>'+post.avatar+'</strong></p>'+ '</div>' ); }); }); });

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• Best PHP framework for jQuery?

  - by Radagaisus

  I've read all the answers on stackoverflow for similar questions but no one really laid down an explanation: why is zend/symfony/kohana/cakePHP the best for jQuery? what is the difference? I'm writing a snazzy ultra-cool web 2.0 app with google maps and facebook connect integration plus a bunch of other APIs. Almost everything will be AJAX vis JSON. For me PHP is a burden, an unnecessary evil. I need database control, almost always via JSON. I need user authentication. This is all. Nothing fancy. And I need it to scale. Most of all I need it to work effortlessly with jQuery, I need it to be jQuery's BFF, and I need to know why it is so. Thank you very much EDIT: The candidates right now are Yii, CodeIgniter and MongoDB.

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• PHP Redirect one page to another server without showing URL

  - by gav

  Having just written the title for this question I am aware of how dodgy it sounds! I am writing a back end for storing volunteer information for some friends, they have their own website to which I can add a volunteer.php page. What I want is for that page to redirect to a page on my server showing the form for the users to fill in, I would prefer the ugly URL of my site not to show. Is there an easy way to do this? Load the page inside the remotely hosted page somehow? Thanks, Gav

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• POST data to permant json file using PHP

  - by doxsi

  using a url, my idea is the any user can post data. For example via http://myweb.com/index.php?name=Peter&surname=Brown Using the "jedwards" answer, present here , I am hable to create a json an d save it to a file. <? /* This needs to be at the top of your file, without ANYTHING above it */ session_start(); /* ... */ if(!array_key_exists('entries', $_SESSION)) { $_SESSION['entries'] = array(); } $_SESSION['entries'][] = array("name" => $_GET["name"], "surname" => $_GET["surname"]); $json_string = json_encode($_SESSION['entries']); My problem is taht his is not permant amongst different session or user. It work only on the same session. On different sessionthe json built start from the beginning. Any idea about that?

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• Indexing large DB's with Lucene/PHP

  - by thebluefox

  Afternoon chaps, Trying to index a 1.7million row table with the Zend port of Lucene. On small tests of a few thousand rows its worked perfectly, but as soon as I try and up the rows to a few tens of thousands, it times out. Obviously, I could increase the time php allows the script to run, but seeing as 360 seconds gets me ~10,000 rows, I'd hate to think how many seconds it'd take to do 1.7million. I've also tried making the script run a few thousand, refresh, and then run the next few thousand, but doing this clears the index each time. Any ideas guys? Thanks :)

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• PHP error can't figure it out something to do with SQL stuff I think

  - by MrEnder

  Ok the error is showing up somewhere in this here code if($error==false) { $query = pg_query("INSERT INTO chatterlogins(firstName, lastName, gender, password, ageMonth, ageDay, ageYear, email, createDate) VALUES('$firstNameSignup', '$lastNameSignup', '$genderSignup', md5('$passwordSignup'), $monthSignup, $daySignup, $yearSignup, '$emailSignup', now());"); $query = pg_query("INSERT INTO chatterprofileinfo(email, lastLogin) VALUES('$email', now())";); $_SESSION['$userNameSet'] = $email; header('Location: signup_step2.php'.$rdruri); } anyone see what I did wrong??? sorry for being so unspecific but ive been staring at it for 10 mins and I can't figure it out.

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• Simple image displaying php error

  - by Rani dubey

  In a query say i have a image path that have multiple images stored as path=http://localhost/images/xyz.When i run the code: <?php //Retrieves data from MySQL mysql_connect("localhost", "root", "") or die ("Could not save image name Error: " . mysql_error()); mysql_select_db("dawat") or die("Could not select database"); $data = mysql_query("SELECT 'images_path' FROM images_tbl") or die(mysql_error()); //Puts it into an array $file_path = 'http://localhost/images/xyz'; while($row = mysql_fetch_assoc( $data )) {//Outputs the image and other data $src=$file_path.$row["images_path"]; echo "<img src=".$src."> <br>"; } ?> Everything is working fine,but only images are not showing.On place of images it is showing small thumnails.Please suggest what to do.... Sql query i used is: CREATE TABLE images_tbl( images_id INT NOT NULL AUTO_INCREMENT, images_path VARCHAR(200) NOT NULL, submission_date DATE, PRIMARY KEY (images_id) );

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• Levenshtein: MySQL + PHP

  - by user317005

  $word = strtolower($_GET['term']); $lev = 0; $q = mysql_uqery("SELECT `term` FROM `words`"); while($r = mysql_fetch_assoc($q)) { $r['term'] = strtolower($r['term']); $lev = levenshtein($word, $r['term']); if($lev >= 0 && $lev < 5) { $word = $r['term']; } } how can I move all that into just one query? don't want to have to query through all terms and do the filtering in php.

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• Using SHIFT_JIS text in PHP

  - by Joe Corkery

  I am building a form that needs to accept characters encoded in SHIFT_JIS and then send those results via email to a recipient. I've tried to simply capture the results from the $_POST variable and then to insert them into a block of text like this: $contents = <<<TEST Name: $NameJp ... TEST but that doesn't appear to work (which doesn't really surprise me). This is my first attempt at dealing with non-ASCII characters in PHP and I am hoping that people might have some suggestions. Perhaps I am missing a simple function to encode the text. Also, are there any other potential pitfalls that I might encounter? Thanks.

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• PHP: friend classes and ungreedy caller function/class

  - by avetis.kazarian

  Is there any way to get the caller function with something else than debug_backtrace()? I'm looking for a less greedy way to simulate scopes like friend or internal. Let's say I have a class A and a class B. Until now, I've been using debug_backtrace(), which is too greedy (IMHO). I thought of something like this: <?php class A { public function __construct(B $callerObj) {} } class B { public function someMethod() { $obj = new A($this); } } ?> It might be OK if you want to limit it to one specific class, but let's say I have 300 classes, and I want to limit it to 25 of them? One way could be using an interface to aggregate: public function __construct(CallerInterface $callerObj) But it's still an ugly code. Moreover, you can't use that trick with static classes. Have any better idea?

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• inserting date timestamp value to mysql thru php in godaddy hosting site

  - by Suj

  Hi all, I'm using GoDaddy's Shared Linux hosting. Using php i am inserting or updating the mysql database with create date or modified date using the variables $datestring = "%Y:%m:%d %h:%i:%s"; $time = time(); $createdate= mdate($datestring, $time); In this $createdate will be the variable i use to insert or update the table. But its updating the wrong value. ITs not the server time or localtime. mostly its 30 mins delay with godaddy's server time. Pls help.

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• PHP and Apache environment variables

  - by Simon

  Hello, I want to pass an environment variable in linux to apache on start up. export MYVAR=5 --I define my environment variable on the command line PassEnv MYVAR --set apache to import the variable in apache config file apachectl restart --when I restart apache I don't get an error message. However I have noticed that if I do not create the environment variable in my first step, I get a warning message, so must be working here echo $_SERVER['MYVAR'] --i try to access the environment variable within PHP but it is not defined I've observed that if I try to PassEnv an environment variable that already exits (one that I havn't created myself) it works fine. The SetEnv directive also works fine. I'd really like to pass an environment variable to apache on the fly without writing it in a file. Help much appreciated. I'm using CentOS, PHP5 and Apache2. Thanks.

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• some confusions to singleton pattern in PHP

  - by SpawnCxy

  Hi all, In my team I've been told to write resource class like this style: class MemcacheService { private static $instance = null; private function __construct() { } public static function getInstance($fortest = false) { if (self::$instance == null) { self::$instance = new Memcached(); if ($fortest) { self::$instance->addServer(MEMTEST_HOST, MEMTEST_PORT); } else { self::$instance->addServer(MEM_HOST, MEM_PORT); } } return self::$instance; } } But I think in PHP resource handles will be released and initialized again every time after a request over. That means MemcacheService::getInstance() is totally equal new Memcached() which cannot be called singleton pattern at all. Please correct me if I'm wrong. Regards

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• [PHP] - Output buffer based progress bar

  - by KPL

  Hello people, I have been trying to get the following code working. It's a progress bar trick which uses ob_get_clean() function. Don't know why but this script just don't work! Only the initial percent - 1% comes up and nothing after that. <?php error_reporting(8191); function flush_buffers(){ @ob_end_flush(); @ob_flush(); @flush(); @ob_start(); } $ini = 2; echo '<script>document.getElementById(\'lpt\').style.width=\'1%\';</script><br>'; for($i=1;$i<=100;$i++) { $k=$ini-1; $str=str_replace("width=\'$k%\'","width=\'$i%\'",ob_get_clean()); $ini++; echo $str; flush_buffers(); } ?>

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• generic function for extracting values from an array with one particular key in PHP

  - by Sabya

  Is it possible in PHP to extract values from an array with a particular key path and return an array of those values? I'll explain with an example: $user = array ( array( id => 1, email =>'[email protected]', project => array ('project_id' => 222, 'project_name' => 'design') ), array( id => 2, email =>'[email protected]', project => array ('project_id' => 333, 'project_name' => 'design') ) ); /** I have to write a function something like: */ $projectIds = extractValuesWithKey($user, array('project', 'project_id')); print_r($projectIds); Output: Array( [0] => 222, [1] => 333 )

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• Efficiency of PHP arrays cast as objects?

  - by keithjgrant

  From what I understand, PHP objects are generally much faster than arrays. How is that efficiency affected if I'm typecasting to define stdClass objects on the fly: $var = (object)array('one' => 1, 'two' => 2); If the code doing this is deeply-nested, will I be better off explicitly defining $var as an objects instead: $var = new stdClass(); $var->one = 1; $var->two = 2; Is the difference negligible since I'll then be accessing $var as an object from there on, either way?

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• django (under mod_wsgi) and php

  - by Hellnar

  Hello Under my debian copy, I run a django site runs via apache2 and mod_wsgi. Now I want to include a wordpress to it, for that I need to install php - apache bindings. I am curious what library is recommended for this, aswell as how shall I be doing the apache2 config file ? Here is my current apache 2 000-default file: <VirtualHost *:80> Alias /media /home/myuser/myproject/statics Alias /favicon.ico /home/myuser/myproject/statics/pic/favicon.ico Alias /robots.txt /home/myuser/myproject/templates/robots.txt Alias /admin_media /usr/lib/python2.5/site-packages/Django-1.1.1-py2.5.egg/django/contrib/admin/media WSGIScriptAlias / /home/myuser/myproject/myproject_wsgi.py WSGIDaemonProcess myproject user=myuser group=myuser threads=25 WSGIProcessGroup myproject </VirtualHost> I want to add Wordpress to my www.mysite.com/blog

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• Run PHP class from JavaScript

  - by jarus

  I need to fire a php class from a javascript function. code: <input type="button" name="Submit" value="Submit" class="opinionbox" onclick="verifyControl('<?=$control_no?>')"/> function verifyControl(rNo) { Cont_no=document.getElementById("ContNo").value; if(rNo==Cont_no) { frames['frame1'].print(); showPage('payment'); } else if(rNo!=Cont_no) { alert("invalid control no"); } } i need to run the code $data = $obj_com -> getSelectedData('tbl', 'control_no', $contno); $control_no = $contno; $obj_com -> recordPay('tbl',$contno); inside the verifyControl() how can I do this?

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• How to verify if file is according to mask in PHP without reading filename from disk.

  - by php html

  I have a list of file names(I already have the filelist let's say in a text file). I want to process this list in the following way: filenames of type /dirX/subdirX//.ext will be written in a new file all the other filenames will be written in a separate file. Is there any option to verify if a filename corresponds to a mask, without reading the file name from disk?(by filename I mean a simple string). I would like to know if there is such a function that don't require disk access. I know regex could be an workaround but I'd like to have something from php.

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• Using JQuery Ajax to call a php function

  - by Stevie Jenowski

  Hello! First and foremost thank you for checking out my problem, and for any help you may give! Okay, so like the title says I'm in need of calling a php function from my index page, which adds a new record in my database as a vote, using JQuery Ajax. This function will return one integer, which will then be printed inside the form button in which it was called from. Anyone have an idea on how I would accomplish this? Any guidance is appreciated!

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• How to find GTK version in PHP-GTK2?

  - by aidave

  This one is driving me nuts. According to GTK's site, there exists GTK_MAJOR_VERSION, GTK_MINOR_VERSION, and GTK_MICRO_VERSION constants. However, none of these work: echo GTK_MAJOR_VERSION; echo GtK::MAJOR_VERISON; echo Gtk::GTK_MAJOR_VERSION; etc Also, Gtk::check_version(2,12,0) always fails even though I have a higher version. I'd like to simply get the actual version number and not rely on check_version, which seems unreliable. How can I do this? I need to do it within PHP, platform independent.

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