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  • Easiest way to choose a percentage of an amount of rows from a MySQL table?

    - by Rob
    I have a script that has a GET variable: $_GET['percentage'] I have a MySQL table of data. Now lets say that there are 100 rows of data in this table. In pseudo-code: SELECT data FROM table Now would it be possible to select $_GET['percentage'] of random data from table? For example (again in pseudo-code): $_GET['percentage'] = 10; SELECT 10% of data from table order by rand() If this IS possible, how could I do it?

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  • count specific values in a multidimensional array

    - by user1680701
    I have an odd set of arrays that I need to count how many times specific values show in the results. Currently I have this bit of code. $nested_arrays = shopp_orders( '2011-11-30 00:00:00', '2012-11-30 12:59:59', false, '', 2 ); print_r($nested_arrays); This code pulls multiple arrays (serialized data) from the database and outputs like this Array ( [30] => Purchase Object ( [purchased] => Array ( ) [columns] => Array ( ) [message] => Array ( ) [data] => Array ( ) [invoiced] => [authorized] => [captured] => [refunded] => [voided] => [balance] => 0 [downloads] => [shipable] => [shipped] => [stocked] => [_position:DatabaseObject:private] => 0 [_properties:DatabaseObject:private] => Array ( ) [_ignores:DatabaseObject:private] => Array ( [0] => _ ) [_map:protected] => Array ( ) [_table] => wp_shopp_demo_shopp_purchase [_key] => id [_datatypes] => Array ( [id] => int [customer] => int [shipping] => int [billing] => int [currency] => int [ip] => string [firstname] => string [lastname] => string [email] => string [phone] => string [company] => string [card] => string [cardtype] => string [cardexpires] => date [cardholder] => string [address] => string [xaddress] => string [city] => string [state] => string [country] => string [postcode] => string [shipname] => string [shipaddress] => string [shipxaddress] => string [shipcity] => string [shipstate] => string [shipcountry] => string [shippostcode] => string [geocode] => string [promos] => string [subtotal] => float [freight] => float [tax] => float [total] => float [discount] => float [fees] => float [taxing] => list [txnid] => string [txnstatus] => string [gateway] => string [paymethod] => string [shipmethod] => string [shipoption] => string [status] => int [data] => string [secured] => string [created] => date [modified] => date ) [_lists] => Array ( [taxing] => Array ( [0] => exclusive [1] => inclusive ) ) [id] => 30 [customer] => 12 [shipping] => 23 [billing] => 23 [currency] => 0 [ip] => 24.125.58.205 [firstname] => test [lastname] => test [email] => [email protected] [phone] => 1234567890 [company] => [card] => 1111 [cardtype] => Visa [cardexpires] => 1420070400 [cardholder] => test [address] => 123 Any Street [xaddress] => [city] => Danville [state] => VA [country] => US [postcode] => 24541 [shipname] => [shipaddress] => 123 Any Street [shipxaddress] => [shipcity] => Danville [shipstate] => VA [shipcountry] => US [shippostcode] => 24541 [geocode] => [promos] => Array ( ) [subtotal] => 49.37 [freight] => 9.98 [tax] => 9.874 [total] => 69.22 [discount] => 0 [fees] => 0 [taxing] => exclusive [txnid] => [txnstatus] => authed [gateway] => TestMode [paymethod] => credit-card-test-mode [shipmethod] => ItemRates-0 [shipoption] => Fast Shipping [status] => 0 [secured] => [created] => 1354096946 [modified] => 1354096946 ) [29] => Purchase Object ( [purchased] => Array ( ) [columns] => Array ( ) [message] => Array ( ) [data] => Array ( ) [invoiced] => [authorized] => [captured] => [refunded] => [voided] => [balance] => 0 [downloads] => [shipable] => [shipped] => [stocked] => [_position:DatabaseObject:private] => 0 [_properties:DatabaseObject:private] => Array ( ) [_ignores:DatabaseObject:private] => Array ( [0] => _ ) [_map:protected] => Array ( ) [_table] => wp_shopp_demo_shopp_purchase [_key] => id [_datatypes] => Array ( [id] => int [customer] => int [shipping] => int [billing] => int [currency] => int [ip] => string [firstname] => string [lastname] => string [email] => string [phone] => string [company] => string [card] => string [cardtype] => string [cardexpires] => date [cardholder] => string [address] => string [xaddress] => string [city] => string [state] => string [country] => string [postcode] => string [shipname] => string [shipaddress] => string [shipxaddress] => string [shipcity] => string [shipstate] => string [shipcountry] => string [shippostcode] => string [geocode] => string [promos] => string [subtotal] => float [freight] => float [tax] => float [total] => float [discount] => float [fees] => float [taxing] => list [txnid] => string [txnstatus] => string [gateway] => string [paymethod] => string [shipmethod] => string [shipoption] => string [status] => int [data] => string [secured] => string [created] => date [modified] => date ) [_lists] => Array ( [taxing] => Array ( [0] => exclusive [1] => inclusive ) ) [id] => 29 [customer] => 13 [shipping] => 26 [billing] => 25 [currency] => 0 [ip] => 70.176.223.40 [firstname] => Bryan [lastname] => Crawford [email] => [email protected] [phone] => 4802323049 [company] => ggg [card] => 1111 [cardtype] => Visa [cardexpires] => 1356998400 [cardholder] => ggg [address] => 1300 W Warner Rd [xaddress] => [city] => Gilbert [state] => AZ [country] => US [postcode] => 85224 [shipname] => [shipaddress] => 1300 W Warner Rd [shipxaddress] => [shipcity] => Gilbert [shipstate] => AZ [shipcountry] => US [shippostcode] => 85224 [geocode] => [promos] => Array ( ) [subtotal] => 29.95 [freight] => 9.98 [tax] => 0 [total] => 39.93 [discount] => 0 [fees] => 0 [taxing] => exclusive [txnid] => [txnstatus] => authed [gateway] => TestMode [paymethod] => credit-card-test-mode [shipmethod] => ItemRates-0 [shipoption] => Fast Shipping [status] => 0 [secured] => [created] => 1353538691 [modified] => 1353538691 ) ) This is order data from only two orders. I need to count how many times each state, each city, shipmethod, etc occur in the array. I tried the following but it only counted the 2 large arrays. function count_nested_array_keys(array &$a, array &$res=array()) { $i = 0; foreach ($a as $key=>$value) { if (is_array($value)) { $i += count_nested_array_keys($value, &$res); } else { if(!isset($res[$key])) $res[$key] = 0; $res[$key]++; $i++; } } return $i; } $total_item_count = count_nested_array_keys($nested_arrays, $count_per_key); echo "count per key: ", print_r($count_per_key), "\n"; If someone could show me how to count how many times each state value occurs, example, VA = 2 NC = 1 I can take it from there. Thank You.

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  • Call from a singleton class to a function which in turn calls that class's method

    - by dare2be
    Hello, I am still looking for a way to phrase it properly (I'm not a native speaker...). So I have this class SQL which implements the singleton pattern (for obvious reasons) and I also have this function, checkUsr(), which queries the database using one of SQL's methods. Everything works fine as long as I don't call checkUsr() from within the SQL class. When I do so, the scripts just exits and a blank page is displayed - no errors are returned, no exception is thrown... What's happening? And how do I work around this problem? EDIT: class SQL { public static function singleton() { static $instance; if(!isset($instance)) $instance = new SQL; return $instance; } public function tryLoginAuthor( $login, $sha1 ) { (...) } } function checkUsr() { if (!isset($_SESSION['login']) || !isset($_SESSION['sha1'])) throw new Exception('Not logged in', 1); $SQL = SQL::singleton(); $res = $SQL->tryLoginAuthor($_SESSION['login'], $_SESSION['sha1']); if (!isset($res[0])) throw new Exception('Not logged in', 1); }

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  • Submit multiple forms as one

    - by Stephen Sarcsam Kamenar
    I have two forms on the page. To the user it looks like 1 form, and I actually wish it was one form. But the way I'm trying to reuse code and include things, I can't avoid two forms in the source code... trying to act as one. I don't want to do ajax submit, I want a normal post submit, my form handler has redirects in it. How can I submit both of these, and get values that make sense on the server side. something like $_POST['form1]['whatever'] $_POST['form2]['thing'] Maybe take all the inputs from form 2, rename all of them with a prefix, and append them to form 1? I can't find a non-messy way of doing this. I don't think I need code, just a plan. Least messy idea wins.

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  • Should an object be fully complete before injected as a dependency?

    - by Hans
    This is an extension of this question: http://stackoverflow.com/questions/3027082/understanding-how-to-inject-object-dependencies. Since it is a bit different, I wanted to separate them, to make it, hopefully, easier to answer. Also, this is not a real system, just a simplified example that I thought we'd all be familiar with. TIA. : DB threads: thread_id, thread_name, etc posts: post_id, thread_id, post_name, post_contents, post_date, post_user_id, etc Overview Basically I'm looking at the most maintainable way to load $post_id and have it cascade and load the other things I want to know about and I'm trying to keep the controller skinny. BUT: I'm ending up with too many dependencies to inject I'm passing in initialized but empty objects I want to limit how many parameters I am passing around I could inject $post(-many) into $thread(one<-), but on that page I'm not looking at a thread, I'm looking at a post I could combine/inject them into a new object Detail If I am injecting an object into another, is it best to have it fully created first? I'm trying to limit how many parameters I have to pass in to a page, but I end up with a circle. // 1, empty object injected via constructor $thread = new Thread; $post = new Post($thread); // $thread is just an empty object $post->load($post_id); // I could now do something like $post->get('thread_id') to get everything I want in $post // 2, complete object injected via constructor $thread = new Thread; $thread->load($thread_id); // this page would have to have passed in a $thread_id, too $post = new Post($thread); // thread is a complete object, with the data I need, like thread name $post->load($post_id); // 3, inject $post into $thread, but this makes less sense to me, since I'm looking at a post page, not a thread page $post = new Post(); $post->load($post_id); $thread = new Thread($post); $thread->load(); // would load based on the $post->get('post_id') and combine. Now I have all the data I want, but it's non-intuitive to be heirarchially Thread->Post instead of Post-with-thread-info // Or, I could inject $post into $thread, but if I'm on a post page, // having an object with a top level of Thread instead of // Post-which-contains-thread-info, makes less sense to me. // to go with example 1 class post { public function __construct(&$thread) { $this->thread=$thread; } public function load($id) { // ... here I would load all the post data based on $id // now include the thread data $this->thread->load($this->get('thread_id')); return $this; } } // I don't want to do $thread = new Thread; $post = new Post; $post->load($post_id); $thread->load($post->get('post_id')); Or, I could create a new object and inject both $post and $thread into it, but then I have object with an increasing number of dependencies.

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  • mysql row counter

    - by David19801
    Hello, I have a mysql table. It has auto increment on the id. but I regularly delete rows so the numbers are all over the place. I need to get the last n rows out, but because of deletions, the common way of using the max of the autoincremented id column doesn't work well... 1 - Is their another way to get the bottom 50? 2 - Is their a way to get rows by actual row number? so if I have 4 rows labelled 1,2,3,4 delete row 2 then it will become 1,2,3 rather than 1,3,4?

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  • Strange text when converting XML array to XML

    - by danit
    Im using the answer to this question to convert an array of XML to a single XML output: http://stackoverflow.com/questions/2554671/output-array-of-xml-to-plain-xml Im using the simpler solution of the two there (Marked as the answer) It all works for me, however at the start of the output I get: string(109960) " Can anyone shed any light on this? Output here: http://bit.ly/aoA3qY

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  • Facebook action and object submission

    - by tijanja
    Am new to Facebook sdk and i want to use it in my project (blackberry app) has the developer i tried writing to my timeline with the code blow through a web service and i was able to write to my timeline, my question is this must i create an action and object that must be submitted for approval before other users can use my app to write to their timeline? because permission are not granted when users try to write to their timeline. $ret_obj = $facebook->api('/me/feed', 'POST',array('link' => 'www.****.com','message' => $user_profile["name"].' just downloaded W1')); echo '<pre>Post ID: ' . $ret_obj['id'] . '</pre>';

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  • how to make functions global?

    - by fayer
    i'm trying to follow DRY and i've got some functions i have to reuse. i put them all as static functions in a class and want to use them in another class. what is the best way to make them available to a class. cause i can't extend the class, its already extended. should/could i use composition? what is best practice? thanks!

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  • CodeIgniter - the right way to create "block" elements on web page

    - by kikkoman90
    Hello. I've been searching for a solutions for this problem a while but haven't seen any "valid mvc" solution for this. I hope I can explain my problem clearly enough for you guys. I need to create a dynamic block of HTML on my website. (eg. a block containing user's latest blog comments). I have a template view file (a file containing header, content container and a footer) where I need to add some content AND this block element. The problem is that I don't want to duplicate this block code on every controller. It just feels stupid and I'm sure there's a better way to do this than just duplicating same stuff all over again on all the controller files? I can add view inside another view just fine, but what bugs me is how to actually generate that dynamic content to this block's view-file. I can't call controller from view file, controller from controller filem or model from view file because what I understand that just isn't the "mvc" way? Anyone got any tricks or tips for this?

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  • how to get a text box with the value selected in select box

    - by udaya
    hi This is my view page here i have a select box <tr> <td>Chidren</td> <td>:</td> <td><select style="font-family: verdana; min-width: 52px;" id="ddlChildren" name="ddlChildren" class="required" onChange="return Check_Adult('dd1Age')" > <option value="">children</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option></select> </td> </tr> with the value from select box if the value is one then i need to create a text box if the value is two then i need to create two ,,, and respectively In my Check_Adult javascript function ,,I did this function Check_Adult() { var Child= document.getElementById('ddlChildren').value; if( Child==1) { <? echo '<input type="text" name="child" id="child">' ?> } } But the text box is not created how to create it?

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  • A logical problem with two tables

    - by Luke
    Hey guys, I created a list for fixtures. $result = mysql_query("SELECT date FROM ".TBL_FIXTURES." WHERE compname = '$comp_name' GROUP BY date"); $i = 1; $d = "Start"; while ($row = mysql_fetch_assoc($result)) { $odate = $row['date']; $date=date("F j Y", $row['date']); echo "<p>Fixture $i - $d to $date</p>"; } As you can see from the query, the date is displayed from the fixtures table. The way my system works is that when a fixture is "played", it is removed from this table. Therefore when the entire round of fixtures are complete, there wont be any dates for that round in this table. They will be in another table. Is there anyway I can run an other query for dates at the same time, and display only dates from the fixtures table if there isnt a date in the results table? "SELECT * FROM ".TBL_CONF_RESULTS." WHERE compid = '$_GET[id]' && type2 = '2' ORDER BY date" That would be the second query!

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  • cakephp, set 1 to webstuff field if these keywords matches

    - by user259546
    this is what i have so far function contact() { if (!empty($this->data)) { $this-Contact-create(); if ($this-Contact-save($this-data)) { if($this-data['Contact']['comments'] == ' website,newsleter etc '){ $this-Contact-saveField('webstuff', 1); } $this-Session-setFlash('done'); $this-redirect('/'); } else { $this-Session-setFlash('faild'); } } }

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  • How can i merge arrays like a gearwheel

    - by JuKe
    i have 3 arrays like this $a = array( 0 => 'a1', 1 => 'a2', 2 => 'a3' ); $b = array( 0 => 'b1', 1 => 'b2', 2 => 'b3' ); $c = array( 0 => 'c1', 1 => 'c2', 2 => 'c3' ); and i like to have somethink like this: $r = array( 0 => 'a1', 1 => 'b1', 2 => 'c1', 3 => 'a2', 4 => 'b2', 5 => 'c2', 6 => 'a3', .... ... ); how can i do this, with the opinion of more than 3 arrays EDIT: i have tried this: $a = array( 0 => 'a1', 1 => 'a2', 2 => 'a3', 3 => 'a4' ); $b = array( 0 => 'b1', 1 => 'b2', 2 => 'b3' ); $c = array( 0 => 'c1', 1 => 'c2', 2 => 'c3', 3 => 'c3', 4 => 'c3', 5 => 'c3' ); $l['a'] = count($a); $l['b'] = count($b); $l['c'] = count($c); arsort($l); $largest = key($l); $result = array(); foreach ($$largest as $key => $value) { $result[] = $a[$key]; if(array_key_exists($key, $b)) $result[] = $b[$key]; if(array_key_exists($key, $c)) $result[] = $c[$key]; } print_r($result); this work.. but the code isn't nice. so anyone has a better solution?

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  • How do I test the speed of a mySQL query?

    - by Chris
    I have a select and query like below... $sql = "SELECT * FROM notifications WHERE to_id='".$userid."' AND (alert_read != '1' OR user_read != '1') ORDER BY alert_time DESC"; $result = mysql_query($sql); how do I test how long the query took to run?

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  • where to put business logic in a library?

    - by fayer
    i'm going to create a library that consists of a lot of separate classes. i'm very familiar with mvc but have never created a pure library before. i wonder where i should put the business logic? the logic that is in the controller in a mvc. should it be in a class? or in a "bootstrap" file? and should one file include every class, or should only one class include its classes it uses? thanks!

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  • Error comparing hash to hashed mysql password (output values are equal)

    - by Charlie
    Im trying to compare a hashed password value in a mysql database with the hashed value of an inputted password from a login form. However, when I compare the two values it says they aren't equal. I removed the salt to simply, and then tested what the outputs were and got the same values $password1 = $_POST['password']; $hash = hash('sha256', $password1); ...connect to database, etc... $query = "SELECT * FROM users WHERE username = '$username1'"; $result = mysql_query($query); $userData = mysql_fetch_array($result); if($hash != $userData['password']) //incorrect password { echo $hash."|".$userData['password']; die(); } ...other code... Sample output: 7816ee6a140526f02289471d87a7c4f9602d55c38303a0ba62dcd747a1f50361| 7816ee6a140526f02289471d87a7c4f9602d55c38303a0ba62dcd747a1f50361 Any thoughts?

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  • Replace strings differently depending if is enclosed in braces or not.

    - by peroyomas
    I want to replace all instances of an specific words between braces with something else, unless it is written between double braces, while it should show as is it was written with single braces without the filter. I have tried a code but only works for the first match. The rest are shown depending of the first one: $foo = 'a {bar} b {{bar}} c {bar} d'; $baz = 'Chile'; preg_match_all( '/(\{?)\{(tin)\}(\}?)/i', $foo, $matches, PREG_SET_ORDER ); if ( !empty($matches) ) { foreach ( (array) $matches as $match ) { if( empty($match[1]) && empty($match[3])) { $tull = str_replace( $match[0], $baz, $foo ); } else { $tull = str_replace( $match[0], substr($match[0], 1, -1), $foo ) ; } } } echo $tull;

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  • How can I construct this file tree based on what files the user is allowed to view?

    - by robert
    I have an array of files that looks like this: Array ( [0] => Array ( [type] => folder [path] => RootFolder ) [1] => Array ( [type] => file [path] => RootFolder\error.log ) [2] => Array ( [type] => folder [path] => RootFolder\test ) [3] => Array ( [type] => file [path] => RootFolder\test\asd.txt ) [4] => Array ( [type] => folder [path] => RootFolder\test\sd ) [5] => Array ( [type] => file [path] => RootFolder\test\sd\testing.txt ) ) I parse this array and create a tree like view based on the depth of the files ('/' count). It looks like this: RootFolder - error.log - test - asd.txt - sd - testing.txt What I have now is an array of filepaths the user is allowed to view. I need to take this array into account when constructing the above tree. That array looks like this: Array ( [0] => Array ( [filePath] => RootFolder\test\sd ) [1] => Array ( [filePath] => RootFolder\error.log ) ) It would be easy to do a if in_array($path, $allowed) but that won't give me the tree. Just a list of files... Another part I'm stumped on is this requirement: If the user has access to view the folder test, they then have access to all children of that folder. My idea was to simply parse the filepaths. For example, I'd confirm that RootFolder\test\sd was a directory and then create a tree based on the '/' count. Like I was doing earlier. Then, since this is a directory, I'd pull out all files within this directory and show them to the user. However, I'm having trouble converting this to working code... Any ideas?

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