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• (PHP) Converting an array of arrays from one format into another

  - by Richard Carter

  Hi, I currently have an array, created from a database, an example of which looks like the following: Array( [0] => Array ( objectid => 2, name => title, value => apple ), [1] => Array ( objectid => 2, name => colour, value => red ), [2] => Array ( objectid => 3, name => title, value => pear ), [3] => Array ( objectid => 3, name => colour, value => green ) ) What I would like to do is group all the items in the array by their objectid, and convert the 'name' values into keys and 'value' values into values of an associative array....like below: Array ( [0] => Array ( objectid => 2, title => apple, colour => red ), [1] => Array ( objectid => 3, title => pear, colour => green ) ) I've tried a few things but haven't really got anywhere.. Any ideas? Thanks in advance

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• Loop through multi-dimensional array and remove certain keys

  - by Webkungen

  Hi! I've got a nested tree structure which is based on the array below: Array ( [1] = Array ( [id] = 1 [parent] = 0 [name] = Startpage [uri] = 125 [basename] = index.php [child] = ) [23] = Array ( [id] = 23 [parent] = 0 [name] = Events [uri] = 0 [basename] = [child] = Array ( [24] = Array ( [id] = 24 [parent] = 23 [name] = Public news [uri] = 0 [basename] = [child] = Array ( [27] = Array ( [id] = 27 [parent] = 24 [name] = Add [uri] = 100 [basename] = news.public.add.php [child] = ) [28] = Array ( [id] = 28 [parent] = 24 [name] = Overview [uri] = 101 [basename] = news.public.overview.php [child] = ) ) ) [25] = Array ( [id] = 25 [parent] = 23 [name] = Private news [uri] = 0 [basename] = [child] = Array ( [29] = Array ( [id] = 29 [parent] = 25 [name] = Add [uri] = 67 [basename] = news.private.add.php [child] = ) [30] = Array ( [id] = 30 [parent] = 25 [name] = Overview [uri] = 68 [basename] = news.private.overview.php [child] = ) ) ) [26] = Array ( [id] = 26 [parent] = 23 [name] = Calendar [uri] = 0 [basename] = [child] = Array ( [31] = Array ( [id] = 31 [parent] = 26 [name] = Add [uri] = 69 [basename] = news.event.add.php [child] = ) [32] = Array ( [id] = 32 [parent] = 26 [name] = Overview [uri] = 70 [basename] = news.event.overview.php [child] = ) ) ) ) ) ) I'm looking for a function to loop (recursive?) through the array and remove some keys. I my system I can allow users to certain functions/pages and if I deny access to the whole "block" "Events", the array will look like this: Array ( [1] = Array ( [id] = 1 [parent] = 0 [name] = Startpage [uri] = 125 [basename] = index.php [child] = ) [23] = Array ( [id] = 23 [parent] = 0 [name] = Events [uri] = 0 [basename] = [child] = Array ( [24] = Array ( [id] = 24 [parent] = 23 [name] = Public news [uri] = 0 [basename] = [child] = ) [25] = Array ( [id] = 25 [parent] = 23 [name] = Private news [uri] = 0 [basename] = [child] = ) [26] = Array ( [id] = 26 [parent] = 23 [name] = Calendar [uri] = 0 [basename] = [child] = ) ) ) ) As you can see above, the whole "block" "Events" is useless right now, becuase there is no page associated with each option. So I need to find all "keys" where "basename" is null AND where child is not an array or where the array is empty and remove them. I found this function when searching the site: function searchAndDestroy(&$a, $key, $val){ foreach($a as $k = &$v){ if(is_array($v)){ $r = searchAndDestroy($v, $key, $val); if($r){ unset($a[$k]); } }elseif($key == $k && $val == $v){ return true; } } return false; } It can be used to remove a key any where in the array, but only based in one thing, for example remove all keys where "parent" equals "23". But I need to find and remove (unset) all keys where "basename" is null AND where child isn't an array or where the array is empty. Can anyone help me out and possibly tweak the function above? Thank you,

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• adding up value of array and getting the average

  - by sea_1987

  I have an array that looks similar to this, [4] => Common_Model Object ( [id] => 4 [name] => [date_created] => [last_updated] => [user_id_updated] => [_table] => [_aliases] => Array ( [id] => 4 [name] => [date_created] => [date_updated] => [user_id_updated] => [rating] => 3 [recipe_id] => 5 ) [_nonDBAliases] => Array ( ) [_default] => Array ( ) [_related] => Array ( ) [_enums] => [_alsoDelete] => Array ( ) [_readOnly] => Array ( [0] => date_updated ) [_valArgs] => Array ( ) [_valArgsHash] => Array ( [default] => Array ( ) ) [_valAliases] => Array ( ) [_extraData] => Array ( ) [_inputs] => Array ( ) [_tableName] => jm_ratings [_tablePrefix] => [_niceDateUpdated] => 1st Jan 70 [_niceDateCreated] => 1st Jan 70 [_fetchAdminData] => [_mCache] => [_assets] => Array ( ) ) [3] => Common_Model Object ( [id] => 3 [name] => [date_created] => [last_updated] => [user_id_updated] => [_table] => [_aliases] => Array ( [id] => 3 [name] => [date_created] => [date_updated] => [user_id_updated] => [rating] => 1 [recipe_id] => 5 ) [_nonDBAliases] => Array ( ) [_default] => Array ( ) [_related] => Array ( ) [_enums] => [_alsoDelete] => Array ( ) [_readOnly] => Array ( [0] => date_updated ) [_valArgs] => Array ( ) [_valArgsHash] => Array ( [default] => Array ( ) ) [_valAliases] => Array ( ) [_extraData] => Array ( ) [_inputs] => Array ( ) [_tableName] => jm_ratings [_tablePrefix] => [_niceDateUpdated] => 1st Jan 70 [_niceDateCreated] => 1st Jan 70 [_fetchAdminData] => [_mCache] => [_assets] => Array ( ) ) [2] => Common_Model Object ( [id] => 2 [name] => [date_created] => [last_updated] => [user_id_updated] => [_table] => [_aliases] => Array ( [id] => 2 [name] => [date_created] => [date_updated] => [user_id_updated] => [rating] => 1 [recipe_id] => 5 ) [_nonDBAliases] => Array ( ) [_default] => Array ( ) [_related] => Array ( ) [_enums] => [_alsoDelete] => Array ( ) [_readOnly] => Array ( [0] => date_updated ) [_valArgs] => Array ( ) [_valArgsHash] => Array ( [default] => Array ( ) ) [_valAliases] => Array ( ) [_extraData] => Array ( ) [_inputs] => Array ( ) [_tableName] => jm_ratings [_tablePrefix] => [_niceDateUpdated] => 1st Jan 70 [_niceDateCreated] => 1st Jan 70 [_fetchAdminData] => [_mCache] => [_assets] => Array ( ) ) I wanting to add up the [rating] and get the mean average. But I dont know how do this with PHP, my attempt looks like this, <?php foreach ($rt as $rating) { $total = $rating->rating + $rating->rating } $total / count($rt); ?>

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• Easiest way to remove Keys from a 2D Array?

  - by dbemerlin

  Hi, I have an Array that looks like this: array( 0 => array( 'key1' => 'a', 'key2' => 'b', 'key3' => 'c' ), 1 => array( 'key1' => 'c', 'key2' => 'b', 'key3' => 'a' ), ... ) I need a function to get an array containing just a (variable) number of keys, i.e. reduce_array(array('key1', 'key3')); should return: array( 0 => array( 'key1' => 'a', 'key3' => 'c' ), 1 => array( 'key1' => 'c', 'key3' => 'a' ), ... ) What is the easiest way to do this? If possible without any additional helper function like array_filter or array_map as my coworkers already complain about me using too many functions. The source array will always have the given keys so it's not required to check for existance. Bonus points if the values are unique (the keys will always be related to each other, meaning that if key1 has value a then the other key(s) will always have value b). My current solution which works but is quite clumsy (even the name is horrible but can't find a better one): function get_unique_values_from_array_by_keys(array $array, array $keys) { $result = array(); $found = array(); if (count($keys) > 0) { foreach ($array as $item) { if (in_array($item[$keys[0]], $found)) continue; array_push($found, $item[$keys[0]]); $result_item = array(); foreach ($keys as $key) { $result_item[$key] = $item[$key]; } array_push($result, $result_item); } } return $result; } Addition: PHP Version is 5.1.6.

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• Define 2D array with loops in php

  - by Michael

  I have an array $rows where each element is a row of 15 tab-delimited values. I want to explode $rows into a 2D array $rowData where each row is an array element and each tab-delimited value is assigned to a different array element. I've tried these two methods without success. I know the first one has a coding error but I do not know how to correct it. Any help would be amazing. for ($i=0; $i<count($rows); $i++){ for ($j=0; $j<15; $j++){ $rowData = array([$i] => array (explode(" ", $rows[$j]))); } } foreach ($rows as $value){ $rowData = array( array (explode(" ", $rows[$value]))); }

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• Convert complex numerical array to associative array [PHP]

  - by user1500412

  I have an array data that look like this : Array ( [0] => Array ( [0] => Name: [1] => John W. [2] => Registration ID: [3] => 36 ) [1] => Array ( [0] =>Age: [1] => 35 [2] => Height: [3] => 5'11" ) [3] => Array ( [0] => Sex: [1] => M [2] => Weight: [3] => 200lbs ) [4] => Array ( [0] => Address ) [5] => Array ( [0] => 6824 crestwood dr delphi, IN 46923 )) And I want to convert it to associative array like this : Array( ['Name']=> John W. ['Registration ID']=> 36 ['Age']=> 35 ['Height'] => 5'11'' ['Sex']=>M ['Weight']=>200lbs ['Address']=>6824 crestwood dr delphi, IN 46923 ) I have no idea at all how to do this, since the supposed to be array column header were also in sequence, so it makes difficult to convert this array. Any help I appreciate, thx.

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• Array sum of difference of first smallest k elment

  - by prateeak ojha

  Hi i come across this challenge on an online programing challange the task is so simple for ex WE have to variable N and K where N is where N is lenght of array and we have to find sum of duiffrence of K smallest element of array as Sample Input 10 4 1 2 3 4 10 20 30 40 100 200 Sample Output 10 Explanation #0 We have 10 as N size of array and K is 4 here the next N values are array's elments in order to find sum of diffrences we will takek smallest values from array which are 1,2,3,4 then will perform operation(sum of difference) as |1-2| + |1-3| + |1-4| + |2-3| + |2-4| + |3-4| = 10 I tried solving the problem and found a way through which i can solve the problem wit N^3 complexity but my solution is rejected i need a approach to solve the problem with n complexity i still can't figure out a way .. looked at some solution but coud'nt find the exact way to approach. if anybody have a better idea and would like to share it would be appreciable thanks in advance

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• Difference between Web.Config and Machine.Config File

  - by SAMIR BHOGAYTA

  Two types of configuration files supported by ASP.Net. Configuration files are used to control and manage the behavior of a web application. i) Machine.config ii)Web.config Difference between Machine.Config and Web.Config Machine.Config: i) This is automatically installed when you install Visual Studio. Net. ii) This is also called machine level configuration file. iii)Only one machine.config file exists on a server. iv) This file is at the highest level in the configuration hierarchy. Web.Config: i) This is automatically created when you create an ASP.Net web application project. ii) This is also called application level configuration file. iii)This file inherits setting from the machine.config

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• Difference between a pseudo code and algorithm?

  - by Vamsi Emani

  Technically, Is there a difference between these two words or can we use them interchangeably? Both of them more or less describe the logical sequence of steps that follow in solving a problem. ain't it? SO why do we actually use two such words if they are meant to talk of the same? Or, In case if they aren't synonymous words, What is it that differentiates them? In what contexts are we supposed to use the word pseudo code vs the word algorithm? Thanks.

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• Resize Array By Last and not by First in C#

  - by Leen15

  Hi all! I have an Array of Class elements, and by an int variable i need to resize this array to the last X elements. So for example i have an array with: Array[0] = Msg1 Array[1] = Msg2 Array[2] = Msg3 Array[3] = Msg4 Array[4] = Msg5 Array[5] = Msg6 Array[6] = Msg7 Array[7] = Msg8 Array[8] = Msg9 Array[9] = Msg10 and i need to have only the last 8 elements in the array. i cannot use the Array.Resize function because the result would be: Array[0] = Msg1 Array[1] = Msg2 Array[2] = Msg3 Array[3] = Msg4 Array[4] = Msg5 Array[5] = Msg6 Array[6] = Msg7 Array[7] = Msg8 and i need something like this: Array[0] = Msg3 Array[1] = Msg4 Array[2] = Msg5 Array[3] = Msg6 Array[4] = Msg7 Array[5] = Msg8 Array[6] = Msg9 Array[7] = Msg10 How can i do this? i hope my problem is clear. Thanks.

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• What is the difference between String and string in C#

  - by SAMIR BHOGAYTA

  string : ------ The string type represents a sequence of zero or more Unicode characters. string is an alias for String in the .NET Framework. 'string' is the intrinsic C# datatype, and is an alias for the system provided type "System.String". The C# specification states that as a matter of style the keyword ('string') is preferred over the full system type name (System.String, or String). Although string is a reference type, the equality operators (== and !=) are defined to compare the values of string objects, not references. This makes testing for string equality more intuitive. For example: String : ------ A String object is called immutable (read-only) because its value cannot be modified once it has been created. Methods that appear to modify a String object actually return a new String object that contains the modification. If it is necessary to modify the actual contents of a string-like object Difference between string & String : ---------- ------- ------ - ------ the string is usually used for declaration while String is used for accessing static string methods we can use 'string' do declare fields, properties etc that use the predefined type 'string', since the C# specification tells me this is good style. we can use 'String' to use system-defined methods, such as String.Compare etc. They are originally defined on 'System.String', not 'string'. 'string' is just an alias in this case. we can also use 'String' or 'System.Int32' when communicating with other system, especially if they are CLR-compliant. I.e. - if I get data from elsewhere, I'd deserialize it into a System.Int32 rather than an 'int', if the origin by definition was something else than a C# system.

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• how to do loop for array which have different data for each array

  - by Suriani Salleh

  i have this file XML file.. I need to convert it form XMl to MYSQL. if it have only one array than i know how to do it.. now my question how to extract this two array Each array will have different value of data..for example for first array, pmIntervalTxEthMaxUtilization data : 0,74,0,0,48 and for second array pmIntervalRxPowerLevel data: -79,-68,-52 , pmIntervalTxPowerLevel data: 13,11,-55 . can some one help to guide how write php code to extract this xml file to MY SQL <mi> <mts>20130618020000</mts> <gp>900</gp> <mt>pmIntervalRxUndersizedFrames</mt> [ this is first array] <mt>pmIntervalRxUnicastFrames</mt> <mt>pmIntervalTxUnicastFrames</mt> <mt>pmIntervalRxEthMaxUtilization</mt> <mt>pmIntervalTxEthMaxUtilization</mt> <mv> <moid>port:1:3:23-24</moid> <sf>FALSE</sf> <r>0</r> [the data for 1st array i want to insert in DB] <r>0</r> <r>0</r> <r>5</r> <r>0</r> </mv> </mi> <mi> <mts>20130618020000</mts> <gp>900</gp> <mt>pmIntervalRxSES</mt> [this is second array] <mt>pmIntervalRxPowerLevel</mt> <mt>pmIntervalTxPowerLevel</mt> <mv> <moid>client:1:3:23-24</moid> <sf>FALSE</sf> <r>0</r> [the data for 2nd array i want to insert in DB] <r>-79</r> <r>13</r> </mv> </mi> this is the code for one array that i write..i dont know how to write code for two array because the field appear two times and have different data value for each array // Loop through the specified xpath foreach($xml->mi->mv as $subchild) { $port_no = $subchild->moid; $rx_ses = $subchild->r[0]; $rx_es = $subchild->r[1]; $tx_power = $subchild->r[10]; // dump into database; ........................... i have do a little research on it this is the out come... $i = 0; while( $i < 5) { // Loop through the specified xpath foreach($xml->md->mi->mv as $subchild) { $port_no = $subchild->moid; $rx_uni = $subchild->r[10]; $tx_uni = $subchild->r[11]; $rx_eth = $subchild->r[16]; $tx_eth = $subchild->r[17]; // dump into database; .............................. $i++; if( $i == 5 )break; } } // Loop through the specified xpath foreach($xml->mi->mv as $subchild) { $port_no = $subchild->moid; $rx_ses = $subchild->r[0]; $rx_es = $subchild->r[1]; $tx_power = $subchild->r[10]; // dump into database; .......................

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• How do I access data within this multidimensional array?

  - by dmanexe

  I have this array: $items_pool = Array ( [0] => Array ( [id] => 1 [quantity] => 1 ) [1] => Array ( [id] => 2 [quantity] => 1 ) [2] => Array ( [id] => 72 [quantity] => 6 ) [3] => Array ( [id] => 4 [quantity] => 1 ) [4] => Array ( [id] => 5 [quantity] => 1 ) [5] => Array ( [id] => 7 [quantity] => 1 ) [6] => Array ( [id] => 8 [quantity] => 1 ) [7] => Array ( [id] => 9 [quantity] => 1 ) [8] => Array ( [id] => 19 [quantity] => 1 ) [9] => Array ( [id] => 20 [quantity] => 1 ) [10] => Array ( [id] => 22 [quantity] => 1 ) [11] => Array ( [id] => 29 [quantity] => 0 ) ) I'm trying to loop through this array and perform a conditional based on $items_pool[][id]'s value. I want to then report back TRUE or NULL/FALSE, so I'm just testing the presence of to be specific.

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• Adding array to an object breaks the array

  - by DisgruntledGoat

  I have an array like this (output from print_r): Array ( [price] => 700.00 [room_prices] => Array ( [0] => [1] => [2] => [3] => [4] => ) [bills] => Array ( [0] => Gas ) ) I'm running a custom function to convert it to an object. Only the top-level should be converted, the sub-arrays should stay as arrays. The output comes out like this: stdClass Object ( [price] => 700.00 [room_prices] => Array ( [0] => Array ) [bills] => Array ( [0] => Array ) ) Here is my conversion function. All it does is set the value of each array member to an object: function array_to_object( $arr ) { $obj = new stdClass; if ( count($arr) == 0 ) return $obj; foreach ( $arr as $k=>$v ) $obj->$k = $v; return $obj; } I can't figure this out for the life of me!

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• Algorithm to find added/removed elements in an array

  - by jj

  Hi all, I am looking for the most efficent way of solving the following Problem: given an array Before = { 8, 7, 2, 1} and an array After ={1, 3, 8, 8} find the added and the removed elements the solution is: added = 3, 8 removed = 7, 2, 1 My idea so far is: for i = 0 .. B.Lenghtt-1 { for j= 0 .. A.Lenght-1 { if A[j] == B[i] A[j] = 0; B[i] = 0; break; } } // B elemnts different from 0 are the Removed elements // A elemnts different from 0 are the Added elemnts Does anyone know a better solution perhaps more efficent and that doesn't overwrite the original arrays

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• php transform array into multidim array

  - by fverswijver

  So I'm working on a website with Doctrine as ORM and I get the following array back as a result: Array ( [0] => Array ( [c_cat_id] => 1 [c_title] => Programas e projetos [p_menu] => PBA BR 163 [p_page_id] => 1 ) [1] => Array ( [c_cat_id] => 1 [c_title] => Programas e projetos [p_menu] => Outros projetos [p_page_id] => 3 ) ) Is it possible to transform this array (in PHP) to something like this: Array ( [0] => Array ( [c_cat_id] => 1 [c_title] => Programas e projetos [pages] => Array ([p_page_id] => 1 [p_menu] => PBA BR 163, [p_page_id] => 3 [p_menu] => Outros projetos)) Thanks for your help, always eager to learn new ways of doing things and that's why I love StackOverflow ;)

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• Difference between Website and Web Application in ASP.NET

  - by SAMIR BHOGAYTA

  Web site in Visual Studio 2005: A web site is just a group of all files in a folder and sub folders. There is no project file. All files under the specific folder - including your word documents, text files, images etc are part of the web site. You have to deploy all files including source files (unless you pre compile them) to the server. Files are compiled dynamically during run time. To create a "web site", you need to use the menu File New Website You will have the option to choose either one of the following location types: # File System - Allows you to choose a folder to put all the files. # Http - Allows you to choose a virtual directory to put the files. # FTP - Allows you to choose an ftp location. In any of the above cases, no project file is created automatically. Visual Studio considers all files under the folder are part of the web site. There will be no single assembly created and you will nto see a "Bin" folder. The benefits of this model is, you do not need a project file or virtual directory to open a project. It is very handy when you share or download code from the internet. You just need to copy the downloaded code into a folder and you are ready to go! Web Application Project in Visual Studio 2005: Microsoft introduced the "web site" concept where all files under a web site are part of the site, hoping that the development community is going to love that. In fact, this is very usefull to share code. However, they did not consider millions of existing web applications where people are comfortable with the "project" based application. Also, there were lot of web applications where several un wanted files were kept under the web site folder. So, the new model did not work well for them. When people started screaming, Microsoft came up with the answer. On April 7, 2006, they announced "Visual Studio 2005 Web Application Projects" as an Add-On to Visual Studio 2005. This Add-On will allow you to create and use web applications just like the way it used to be in Visual Studio 2003. The Visual Studio 2005 Web Application Project model uses the same project, build and compilation method as the Visual Studio .NET 2003 web project model. All code files within the project are compiled into a single assembly that is built and copied in the Bin directory. All files contained within the project are defined within a project file (as well as the assembly references and other project meta-data settings). Files under the web's file-system root that are not defined in the project file are not considered part of the web project.

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• Difference between Detach/Attach and Restore/BackUp a DB

  - by SAMIR BHOGAYTA

  Transact-SQL BACKUP/RESTORE is the normal method for database backup and recovery. Databases can be backed up while online. The backup file size is usually smaller than the database files since only used pages are backed up. Also, in the FULL or BULK_LOGGED recovery model, you can reduce potential data loss by performing transaction log backups. Detaching a database removes the database from SQL Server while leaving the physical database files intact. This allows you to rename or move the physical files and then re-attach. Although one could perform cold backups using this technique, detach/attach isn't really intended to be used as a backup/recovery process. Commonly it is recommended that you use BACKUP/RESTORE for disaster recovery (DR) scenario and copying data from one location to another. But this is not absolute, sometimes for a very large database, if you want to move it from one location to another, backup/restore process may spend a lot of time which you do not like, in this case, detaching/attaching a database is a better way since you can attach a workable database very fast. But you need to aware that detaching a database will bring it offline for a short time and detaching/attaching does not provide DR function. For more information about detaching and attaching databases, you can refer to: Detaching and Attaching Databases http://technet.microsoft.com/en-us/library/ms190794.aspx

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• php foreach getting values from an array

  - by sea_1987

  I am having trouble accessing the values in an array, the array looks like this, Array ( [0] => Array ( [id] => 1661 [code] => 849651318 [job_status] => 4 [looking_for] => Lorem ipsum [keywords_education] => Derby University [sector_id_csv] => 10,21,9,22,26 [last_job_title_1] => Programmer [last_job_employer_1] => HBOS [city] => Bury [expected_salary_level] => LEVEL_2 [education_level] => COLLEGE [job_looking_for] => [is_contract] => Y [is_permanent] => N [is_temporary] => Y ) ) Array ( [0] => Array ( [id] => 402 [code] => 849650059 [job_status] => 3 [looking_for] => Lorem ipsum [keywords_education] => Paris College [sector_id_csv] => 27,22,19,21,12 [last_job_title_1] => Programmer [last_job_employer_1] => HSBC [city] => Bury [expected_salary_level] => LEVEL_2 [education_level] => COLLEGE [job_looking_for] => [is_contract] => N [is_permanent] => Y [is_temporary] => Y ) ) Array ( [0] => Array ( [id] => 1653 [code] => 849651310 [job_status] => 3 [looking_for] => Lorem ipsum [keywords_education] => Crewe University [sector_id_csv] => 27,15,19,21,24 [last_job_title_1] => Programmer [last_job_employer_1] => ICI [city] => Bury [expected_salary_level] => LEVEL_2 [education_level] => UNIVERSITY [job_looking_for] => [is_contract] => N [is_permanent] => Y [is_temporary] => Y ) ) I am trying to get the values out, I have tried doing the following, foreach ($result as $rslt) { echo $rslt->id; } I have also tried, foreach ($result as $rslt) { $rslt['id']; } But none of this works, I dont know why, can anyone help?

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• PHP - Check that value doesn't appear twice in array

  - by Industrial

  Hi, I have a array inside my PHP app that looks like this: Array ( [0] => Array ( [name] => Name1 [language] => 1 ) [1] => Array ( [name] => Name2 [language] => 1 ) ) How can I check that "language" with value 1 doesnt appear twice, as effectively as possible?

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• How to check if *number* is in a array

  - by Emil

  Pretty basic programming question, I know PHP have a function for it, but does the iPhone OS have one? I want to check if the current indexPath is a value in an array. PHP Example: <?php $indexPath = 3; $array = array("0", "1", "2", "3", "4"); if (in_array($indexPath, $array)) { // Do something } ?> Does anybody know how to do the same thing inthe iPhone OS?

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• return a php associative array to javascript array

  - by Eric Sim

  I am trying to return a php associative array to javascript array through ajaxRequest.responseText Here's what I do. First in php, I do this: $encoded = json_encode($thisarray); echo $encoded; If I echo $encoded, I get {"a":"apple,arrow","b":"boy,bank","c":"cat,camp"} Then in js script, thisarray = new Array(); thisarray = ajaxRequest.responseText; If I alert thisarray, I get {"a":"apple,arrow","b":"boy,bank","c":"cat,camp"} That's wrong since alerting an array should give error. But in this case, when I alert thisarray, I get the full array!! Needless to say, I can't call my value out of thisarray, since it is yet defined as an array. Anyone can tell me what am I missing here?

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• Copying 1-D array into 2 -D array

  - by Digvijay Yadav

  I have one two dimensional array and one single dimensional array. The two dimensional array is of NxM size. And the one dimensional array is of size N x M means it has N X M elements. Now I want to copy all the elements of the one dimensional array into the 2-D array. This is what I tried for(i = 0; i < M; i += 1) { for(j = 0; j < N; j += 1) { arr2d[i][j] = arr2d[(i*j +j)]; } } But not working Any suggestions???

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• loading data from file into 2d array

  - by Chris

  I am just starting with perl and would like some help with arrays please. I am reading lines from a data file and splitting the line into fields: open (INFILE, $infile); do { my $linedata = <INFILE>; my @data= split ',',$linedata; .... } until eof; I then want to store the individual field values (in @data) in and array so that the array looks like the input data file ie, the first "row" of the array contains the first line of data from INFILE etc. Each line of data from the infile contains 4 values, x,y,z and w and once the data are all in the array, I have to pass the array into another program which reads the x,y,z,w and displays the w value on a screen at the point determined by the x,y,z value. I can not pas the data to the other program on a row-by-row basis as the program expects the data to in a 2d matrtix format. Any help greatly appreciated. Chris

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• Sorting an array in ascending order without losing the index Objective-C

  - by thary

  Hello all, I have an array for instance, Array { 3.0 at Index 0 2.0 at Index 1 3.5 at Index 2 1.0 at Index 4 } I would like to get sort it in ascending order without losing the index in the first place, like this, Array { 1.0 at Index 4 2.0 at Index 1 3.0 at Index 0 3.5 at Index 2 } When I sort the array using this, NSArray *sortedArray = [hArray sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)]; [knnRecog sortUsingDescriptors:[NSArray arrayWithObject:sortAsc]]; I lose the index. Does anyone know a way to preserve the index after sorting the array? Thanks

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