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• PHP Extract Values From One String Based on a Pattern Defined in Another

  - by ironkeith

  I have two strings: $first = '/this/is/a/string'; $second = '/this/:param1/a/:param2'; And I'm trying to get this: $params = array('param1' => 'is', 'param2' => 'string'); But getting from point a to b is proving more than my tired brain can handle at the moment. Anything starting with a ':' in the second string defines a variable name/position. There can be any number of variables in $second which need to be extracted from $first. Segments are separated by a '/'. Thanks.

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• Implementing a Clock Drift random number generator in PHP

  - by Excl

  Hi, I wrote the following code: function create_rand($time) { $counter = 0; $stop = microtime(true) + $time; while(microtime(true) < $stop) $counter++; return $counter; } function create_rand_max($time, $a, $b = false) { $rand_a = create_rand($time); $rand_b = create_rand($time); $rand_c = create_rand($time); $max = max($rand_a, $rand_b, $rand_c); $min = min($rand_a, $rand_b, $rand_c); if($max === $min) return create_rand_max($time, $a, $b); $middle = $rand_a + $rand_b + $rand_c - $max - $min; if($b !== false) return min($a, $b) + ($middle - $min) * (max($a, $b) - min($a, $b)) / ($max - $min); return ($middle - $min) * $a / ($max - $min); } $stop = 1000; $sum = 0; for($i = 0; $i < $stop; $i++) { $sum += create_rand_max(0.001, 100, 200); } echo $sum / $stop; The average is usually between 157 to 161, instead of ~150. Any ideas?

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• Handling large datasets with PHP/Drupal

  - by jo

  Hi all, I have a report page that deals with ~700k records from a database table. I can display this on a webpage using paging to break up the results. However, my export to PDF/CSV functions rely on processing the entire data set at once and I'm hitting my 256MB memory limit at around 250k rows. I don't feel comfortable increasing the memory limit and I haven't got the ability to use MySQL's save into outfile to just serve a pre-generated CSV. However, I can't really see a way of serving up large data sets with Drupal using something like: $form = array(); $table_headers = array(); $table_rows = array(); $data = db_query("a query to get the whole dataset"); while ($row = db_fetch_object($data)) { $table_rows[] = $row->some attribute; } $form['report'] = array('#value' => theme('table', $table_headers, $table_rows); return $form; Is there a way of getting around what is essentially appending to a giant array of arrays? At the moment I don't see how I can offer any meaningful report pages with Drupal due to this. Thanks

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• Connecting PHP Server and Android?

  - by user3439988

  I am trying to create a simple test application to transfer data back and forth between my server and Android device. The following are the things I aim for: Ability to upload data and files to the server. To be able to view my files on the server. To be able to download the files from the server to my android device. Ability of the server to send me updates on the files or notifications to my phone. I need a safe and secure way to do these things. I have tried these: HTTPPost requests onto the server and echoing the output accordingly and capturing the HTTPresponse and parsing it. For files I have tried using MultipartEntity, but I think that has been deprecated.

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• how to return static variable PHP

  - by GOsha

  function build_path($cid) { static $fr=array(); $DB = new MySQLTable; $DB->TblName = 'shop_categories'; $where['cat_id']['='] = $cid; $res = $DB->Select('cat_id,cat_name,cat_parent', $where); if($res !== false) { $pid = mysql_fetch_array($res); if($pid['cat_parent'] !== "0") { $fr[] = $pid['cat_id']; build_path($pid['cat_parent']); } else { $fr[] = $cid; $fr = array_reverse($fr); print_r($fr); return $fr; } } } print_r(build_path(100)); Why is working print_r in function, but second print_r returns NULL?

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• php/mysql append state to city

  - by mike

  Hello, Having a hard time figuring out the best way to do this... I have a search function that takes "search terms" and "search location". In the location input, I have an suggestion feature that brings up "city, state abbreviation" but it seems some users just do not use it(or can't) so they end up entering just a city name... I need to append the state abbreviation after the form is submitted. I have a table with all city and state names in the U.S. but the problem is... there are multiple cities with the same name in different states... I would like to add the state abbreviation for the state that the city is most popular for(does that make sense?). For example, if the user enters "Miami" I would like it to become "Miami, FL" as opposed to "Miami, WV"... Any ideas? Thanks!

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• PHP File Upload + jQuery

  - by st4ck0v3rfl0w

  Hello Everyone, So I have my upload script working just fine, but now it's a matter of making it look the way I want for my layout. <input type="file" name="userfile" id="userfile"/> This obviously shows a textbox with a Choose File button. What I really need is my own custom button (which will ultimately be an image) that upon successful file select (not upload quite yet) triggers a jQuery event to show a div. I do NOT want the filename textbox to show. Basic steps outlined below. User clicks on image button to upload their file User selects file jQuery shows a div with more fields User clicks submit and file is uploaded

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• Retrieve array key passed on value PHP

  - by Doodle

  I have the following array $group= array( [0] => 'apple', [1] => 'orange', [2] => 'gorilla' ); I run the array group through an for each function and when the loop hits values of gorilla I want it to spit out the index of gorilla foreach( $group as $key){ if ($key==gorilla){ echo //<------ the index of gorilla } }

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• php - using file() incrementally?

  - by NeedBeerStat

  I'm not sure if this is possible, I've been googling for a solution... But, essentially, I have a very large file, the lines of which I want to store in an array. Thus, I'm using file(), but is there a way to do that in batches? So that every,say, 100 lines it creates, it "pauses"? I think there's likely to be something I can do with a foreach loop or something, but I'm not sure that I'm thinking about it the right way... Like $i=0; $j=0; $throttle=100; foreach($files as $k => $v) { if($i < $j+$throttle && $i > $j) { $lines[] = file($v); //Do some other stuff, like importing into a db } $i++; $j++; } But, I think that won't really work because $i & $j will always be equal... Anyway, feeling muddled... Can someone help me think a lil' clearer?

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• PHP Doctrine: filtering data which is already loaded?

  - by ropstah

  I'm new to Doctrine and ActiveRecord. How should I filter a table after it has been loaded? (i suppose this is preferred over sending multiple queries?) Is this 'good' or 'bad'? class UserTable extends Doctrine_Table { function filterByGroup($group) { $ut = new UserTable(); foreach($this as $u) { if($u->group = $group) $ut->add($u); } return $ut; } }

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• Check if db connection is closed - php

  - by Hamad

  Db connectivity is handled by an include. I want to run this command: mysql_close($con); Only if we currently have a connection. Something like isset()? Thanks Hamad

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• php: deleting words via regular expression

  - by Syom

  i want to delete the following type of expressions from my script. <a any text here>nothing or space here</a> i can do it by three functions, but i think there is a way shorter. could you help me? thanks in advance

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• php printing and updation in to db

  - by DAFFODIL

  I have few values existing in data base,i need to update them but,i am unable to do it. UPDATE Phone SET dcno='1' WHERE number='1' AND date='12/03/2009' AND dcnodate='11/05/2009' AND yourorderno='1' AND orderdate='23/06/2010' AND vendorcode='2222 Couldn't execute query: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''2222' at line 3 I also need to print 3db value in to one form,i m unable to do it. Any help ii be appreciated. http://dpaste.com/hold/185341/

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• PHP MySQL Syntax Error 'You have an error in your SQL syntax'

  - by Alec

  I cannot figure out the issue with my code here. I am trying to take info from the table, then subtract 1 second from Current_Time which looks like '2:00'. The problem is, I get: "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Current_Time) VALUES('22')' at line 1" I don't even understand where it gets 22 from. Thanks, I really appreciate it. if (isset($_GET['id']) && isset($_GET['time'])) { mysql_select_db("aleckaza_pennyauction", $connection); $query = "SELECT Current_Time FROM Live_Auctions WHERE ID='1'"; $results = mysql_query($query) or die(mysql_error()); while ($row = mysql_fetch_array($results)) { $newTime = $row['Current_Time'] - 1; $query = "INSERT INTO Live_Auctions(Current_Time) VALUES('".$newTime."')"; $results = mysql_query($query) or die(mysql_error()); } }

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• comparing Session value problem in php.

  - by aamir Fayyaz

  if ($_SESSION['user_email']!=$_SESSION['ship_user_email']) { $to= $_SESSION['ship_user_email']; mail($to,$subject,$mail_html,$headers); } there is problem in comparing values of both session. value is different but code not working.

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• Counting comma seperated values in php,how to?

  - by Jay

  Hey folks, I have a variable holding values separated by a comma (Implode), I'm trying to get the total count of the values in that variable however, count() is just returning 1. I've tried converting the comma separated values to a properly formatted array which still spits out1. So heres the quick snippet where the sarray session equals to value1,value2,value3: $schools = $_SESSION['sarray']; $result = count($schools); Any help would be appreciated.

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• Tree data structure in php

  - by Piyush

  in my application user starts a new tree or get added under a child-user and keep on adding users in branches in such a way- >there are 10 level of tree type structure. >root node contain 1 user and each node(user) can have max 5 child-user in this way tree will be like level 0 = 1 user , level 1 = 5 user, level 2 = 25 user , level 3 = 125 user and so on. I created one MySQL table having columns like- User_id , level, super_id, child1_id, child2_id, child3_id, child4_id, child5_id my question is How can I get all child-user(child to child also) of a particular user at any level do I need to add some more columns in my table??

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• PHP IF statement not taking variable into account!

  - by Jess

  I have a tabled view in a while loop, where a user can view information on books. For example, book ISBN, book name, read status... Basically, when the user sets their 'readstatus' to 'complete' I want that specific table row to become grey! The logic is very straight forward, however I can't get my IF statement to recognise this: $readstatus = $_GET['readstatus']; if ($readstatus == 'complete') { echo '<tr class="completed">'; } else if ($readstatus != 'complete') { echo '<tr class="reading">'; } I'm obviously doing something wrong here, but all I need is the CSS class of the table row to change if the value of 'readstatus' = 'complete', if not, then output the default CSS table row color ('reading') Should I be putting $result as the variable or something? I have this coming just before my nested IF statement: $result = mysql_query($sql, $connection) or die ("Couldn't perform query $sql <br />".mysql_error()); while($row = mysql_fetch_array($result)) { ?>

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• PHP Count the lenght of each value in a array/string (tags)

  - by 2by

  Users writing an article have the option to write some tags, tags are written like this: tag1, tag2, tag3 So tags are stored like: $tags = "tag1, tag2, tag3"; I want to make sure, every tag has a minimum of 3 characters, so i need to validate the tags. I have tried this: $tagsstring = explode(",", $tags); $tagslength = array_map('strlen', $tagsstring); if (min($tagslength) < 3) { echo "Error... Each tag has to be at least 3 characters."; } It seems to work, sometimes... But of you write: tag1, df It wont give an error. Any suggestions?

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• PHP cURL: get headers only from post

  - by Stewart

  There ought to be a way of sending a post request and getting back just the headers. $ch = curl_init('http://www.stackoverflow.com/'); curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_NOBODY, true); doesn't work, because all setting CURLOPT_NOBODY does is to change the request method to HEAD, thereby overriding CURLOPT_POST. I could just leave the last of these lines out and only process the headers, but is there a more efficient way? It's also odd that there doesn't seem to be a way in cURL to truncate the received content to a specified length as there is with file_get_contents.

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• Add multiple IF tags in php

  - by Andy

  Hi , I would like to add this condition : {if $profile.sex == 1 || $profile.sex == 4} {/if} To this code : case 'friendlist': if ( app_Features::isAvailable( 14 ) ) { $_output = '<div class="memhome_link">'; $_output.= '<a href="'.SK_Navigation::href( 'profile_friend_list' ).'" '.$class.'>'.$lang_section->text( 'href_my_friendlist').'</a>'; $_output.= ' ('.app_FriendNetwork::countFriends( SK_HttpUser::profile_id() ).')'; $_output.= '</div>'; } break; Can anybody give me any help , please ? Thanks for all the help .

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• PHP line break with file_put_contents()

  - by steve-o

  I can't seem to figure out why the following code doesn't produce a new line in my text file - neither does using \n etc either - any ideas what could be wrong? $data = $name . ' | ' . $_POST['comment'] . PHP_EOL; //write to file $f = file_put_contents('posts.txt', $data, FILE_APPEND);

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• update in the php

  - by DAFFODIL

  I wrote a code to insert data .When ,i enter the value in the form and click submit ,the data is getting into database. Now,i should make all those data to edit from from end and,if i click update button,it should be updated in database. Give a snippet for performing this task.

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• override __set in __construct() in php?

  - by user151841

  I have a class based on database values. I'm using __set to automatically sync database values with the class properties. Set checks an array of database fields that it is allowed to update in the database. The field 'id' isn't in the list, so __set will throw an exception if you try to do $objDbRow->id = 5;. However, there is one time when I do want to set the id property of the object, and that's on instantiation. So in __constuct, I have $this->id = $id (where $id is passed to __construct). However, __set seems to be intercepting the setting here, because an exception is being thrown on construction. What's the way to get around this? I suppose I also have a boolean flag, like $instantiated, that __set() would check before it does it's field whitelist checking. But that feels inelegant.

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• How can use foreach to Loop Through PHP Array

  - by jtom

  How can use foreach loop to loop through the $Result? $Query = mysql_query("SELECT * FROM mytable"); $Result = array( ); while ($Row = mysql_fetch_array ( $Query) ) { $Result [ ] = $Row; } mysql_free_result($Query); print_r ($Result); ? I just have very vague idea: foreach ($Result ) { echo $row[fname] . ' ' . $row[lname] . ' ' $row[email]; } ? Could someone help please?

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