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PHP - Passing Multidimensional Array's
I recently posted a simple query about ISSET and finally got that simple problem solved thanks to you guys. But I've hit a new snag. I've create a simple sort of cart, or record counter. While I can add/remove/clear items and display their affilated arrays, I don't know how to cycle through a multidimensional array that is dynamically set.
Something like $_SESSION['Primary'][$items][$attributes] - Where $items is a dynamic set, and $attributes is a fixed set of keys with values.
I can target individual $Items, or display all the items in there. But I can't display all the Items and their subsequent $attributes aswell. Do I have to write 1 set of Ajax code for just displaying the $items, and another for each individual set of $attributes? Or is their a way to cycle through each $item, and then all of it's(or specific) $attributes and values? I've tried using loops which logically work, but I can't pass it through json_encode.
Is there any documentation I could read in relation to this? I feel this is the key component to manuvering through a database of sorts. I'm just not entirely sure how to go about accessing multidimensional Array's without a ton of code that becomes redudent. And even then, it wouldnt work well with a dynamic setup.
Edited by 7blake, 07 November 2014 - 01:39 PM. Similar TutorialsHi all Basically, I have a form which when done will calculate a quote for turf for given areas. Basically each time the user specifies an area it goes into an array, and they can add as many as they want, but the problem seems to be once submitted and it arrives back into the program, it isn't decoding so the multidimensional array is lost. What am I doing wrong here? Full code below, thanks in advance Ste Code: [Select] <?php // Framework // Get the sections $sections_array = base64_decode(unserialize($_POST['sections'])); // Build the rest of the array foreach ($sections_array as $section) { $sections[] = base64_decode(unserialize($section)); } // Set the initial unit $units = $_POST['units']; // Do the new add if ($_POST['a'] == 'add_section') { // Add the new measure if ((is_numeric($_POST['width'])) && (is_numeric($_POST['length']))) { $sections[] = array('length' => $_POST['length'], 'width' => $_POST['width']); } } // Build the output foreach ($sections as $section) { $output .= '<strong>'.$section['width'].' wide</strong> x <strong>'.$section['length'].' long</strong><br />'; $sections_array = base64_encode(serialize($section)); } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Untitled Document</title> <style type="text/css"> body,td,th { font-family: Verdana, Geneva, sans-serif; font-size: 11px; } body { margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; } .wrap { text-align: center; height: 350px; width: 410px; padding: 0 10px; } </style> </head> <body> <div class="wrap"> <h2>Turf Calculator</h2> <p>To begin, enter the width and length of the first area of garden you wish to turf. You can keep adding sections to work out the final quantity required.</p> <p><?php echo $output; ?></p> <form id="form1" name="form1" method="post" action=""> <table width="0" border="0" cellspacing="0" cellpadding="2"> <tr> <td>Length:</td> <td><input type="text" name="length" id="length" /></td> </tr> <tr> <td>Width:</td> <td><input type="text" name="width" id="width" /></td> </tr> <?php if ($units == '') { ?> <tr> <td>Units:</td> <td><select name="units" id="units"> <option value="feet">Feet</option> <option value="m" selected="selected">Metres</option> <option value="yards">Yards</option> </select></td> </tr> <?php } ?> </table> <p> <input type="submit" name="add" id="add" value="Add This Section" /> <input name="a" type="hidden" id="a" value="add_section" /> <input name="sections" type="hidden" id="sections" value="<?php echo base64_encode(serialize($sections_array)); ?>" /> <?php if ($units != '') { ?> <input name="units" type="hidden" id="units" value="<?php echo $units; ?>" /> <?php } ?> </p> </form> <p> </p> </div> </body> </html> I have the following array structu Code: [Select] [0] => Array ( [id] => Array ( [$t] => http://www.google.com/mate/ ) [updated] => Array ( [$t] => 2011-08-31T11:43:05.942Z ) [category] => Array ( [0] => Array ( [scheme] => http://schemas.google.com/g/ [term] => http://schemas.google.com/contact/ ) ) [title] => Array ( [type] => text [$t] => Name ) [link] => Array ( [0] => Array ( [rel] => http://schemas.google.com/contacts/2008/rel#edit-photo [type] => image/* [href] => https://www.google.com/mate/feeds/photos/media/ ) [1] => Array ( [rel] => self [type] => application/atom+xml [href] => https://www.google.com/mate/feeds/contacts ) [2] => Array ( [rel] => edit [type] => application/atom+xml [href] => https://www.google.com/mate/feeds/ ) ) [gd$email] => Array ( [0] => Array ( [rel] => http://schemas.google.com/g/2005#other [address] => email_address@gmail.com [primary] => true ) ) ) I am tried to display name and email address. I am using following method, can anyone tell me is there any better way? Thank u 4u help. NAME $name=( $emp_det[0]['title'][t]); $email =( $emp_det[0]['gdemail'][0][address]); Hi, I'm trying to explode an array into a multidimensional array using <br /> tags as splitters but just can't get the syntax right! I can do lines of the array one by one, but not the whole lot at once. I'd really appreciate a quick example of an explode inside an array. $myarray looks something like this with print_r: ( [0] => [1] => some_html<br />some_html<br />some_html<br /> [2] => some_html<br />some_html<br />some_html<br /> [3] => some_html<br />some_html<br />some_html<br /> ) and I want to turn it into this: ( [0] => [1] => [0]some_html [1]some_html [2]some_html [2] => [0]some_html [1]some_html [2]some_html [3] => [0]some_html [1]some_html [2]some_html ) I've tried this $myarray = explode ("<br />", $myarray); but it doesn't work … It doesn't matter too much if there's are a few empty lines in the array from the final <br /> tags. Many thanks, as ever, for any help. I need to extract data from a CSV file and insert it into a MySQL database. I am able to extract the data, however I cannot figure out how to group it. Sample File: 01 ISBN Name of Book Price 02 ISBN Name of Book Price So far I have an array with the entire file (reading file with PHP): Array ([0] => 01 [1] => 12345678X [2] => Title [3] => 120.00 ...etc. How can I modify the array to create groups of four for each item? Each item is its own array? I've been working on some code to: 1. Search a db for rows that have a particular "position" value 2. Search the same db for rows that have a particular "langs" value 3. Compare the two arrays resulting for 1 and 2 4. Create a multidimensional array $langsarray[langs][question id] if 3 is true. 5. For each langs array in $langsarray pick a random, non-duplicate value and add it to $qarray for a maximum of 12 elements (3 for each langs). What I have works about 95%. The problem is, in the first langs array, one of the 3 randomly picked values is almost always empty, and its not always the same element. Sometimes its the first, sometimes its the third, sometimes its the second... I think I've narrowed down the issue to line 44 ($qtemp = ...). If I change the min/max values for the mt_rand function, it behaves slightly differently. Any help is much appreciated! Thanks in advance. Code: //Include MYSQL class and authentication information require_once('./include/mysql.php'); require_once('./include/global.php'); //Grab apptype from URL querystring $apptype = $_GET['apptype']; //Declare arrays $qarray = array(); $posarray = array(); $langs = array(); $langsarray = array(); //Get id's of all questions pertaining to position type $sql = 'SELECT * FROM qa WHERE position = "' . $apptype . '"'; $result = $db->query($sql) or die(mysql_error()); while ($row = $result->fetch()) { $posarray[] = $row['id']; } //Determine what types of questions should be pulled if ($apptype == 'fed'){ $langs = array('html','css','javascript','jquery'); } else if($apptype == 'bed'){ $langs = array('php','asp','javascript','jquery'); } //Get each question of each language that matches the position type and store it in the multidimensional array $langsarray[language][question id] $z = 0; while ($z < count($langs)){ $sql = 'SELECT * FROM qa WHERE langs = "' . $langs[$z] . '"'; $result = $db->query($sql) or die(mysql_error()); while ($row = $result->fetch()) { if (in_array($row['id'],$posarray)){ $langsarray[$langs[$z]][] = $row['id']; } } //Takes a random question id from the current language ($z) and adds it to the final question array. $y = 0; while ($y < 3) { //$qtemp = $langsarray[$langs[$z]][mt_rand(0,count($langsarray[$langs[$z]]))]; $qtemp = $langsarray[$langs[$z]][mt_rand(0,count($posarray))]; if (!in_array($qtemp,$qarray)){ $qarray[] = $qtemp; echo $qtemp . ', '; $y++; } } echo $langs[$z]; print_r( $langsarray[$langs[$z]]); echo '<br />'; $z++; } echo '<br />'; print_r($qarray); Output: 5, , 2, htmlArray ( => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 ) <--Problem 7, 6, 9, cssArray ( => 6 [1] => 7 [2] => 8 [3] => 9 [4] => 10 ) 14, 15, 13, javascriptArray ( => 11 [1] => 12 [2] => 13 [3] => 14 [4] => 15 ) 21, 17, 20, jqueryArray ( => 16 [1] => 17 [2] => 18 [3] => 19 [4] => 20 [5] => 21 ) Array ( => 5 [1] => [2] => 2 [3] => 7 [4] => 6 [5] => 9 [6] => 14 [7] => 15 [8] => 13 [9] => 21 [10] => 17 [11] => 20 ) <-- Final $qarray Hi everybody, I generally find any assistance that I need on various sites, but this one has me stumped. I'm not overly advanced with my use of arrays, so I'd like some help here if anyone knows what I am looking for. I have a form that I would like to submit to a MySQL database. In that form, there is the ability to add up to 3 harddrives: Code: [Select] Brand: <input type="text" name="hdds[0][hddbrand]" id="hddbrand"><br/> Model and/or size,type: <input type="text" name="hdds[0][hddtype]" id="hddtype"><br/> SN: <input type="text" name="hdds[0][hddsn]" id="hddsn"><br/> Notes: <input type="text" name="hdds[0][hddnotes]" id="hddnotes" size="50"> Obviously the next harddrive would be hdds[1][hddbrand], etc. I am having an awful time looping through this to get more than 1 harddrive's information, however. I've tried foreach embedded in foreach and been messing around with this for a good 3-4 hours now and I feel like I am just missing something. I've got this right now to debug: Code: [Select] foreach($_POST['hdds'] as $key => $a) { $hddbrand = $a['hddbrand']; } my print_r($a) comes up with the following: Code: [Select] Array ( [hddbrand] => Toshiba [hddtype] => Shaba 500gb [hddsn] => 5fu8bvw4 [hddnotes] =>none ) 1 Good. That's what I want. But I need some help constructing my array/loop to get the values of more than 1 drive should I have to enter information for more than 1 drive. I feel like I am close, but I am just not getting what I need. I have not had to work with multidimensional arrays before and they are proving to be more trickier than I expected. Any help would be enormously appreciated! Patrick I am looking at the code below: Code: [Select] $array = array( array( 1, 2 ), 'a' => array( 'b' => 1, 'c' ) ); Is this an example of a multidimensional array? If so how would I access the value of 1 from key b? Also would the next line ('c') be automatically assigned to the asociative key of c? I am trying to store all the elements of my tree in an array.My code produces multi dimensional array, but i want it to be one dimensional. How can i get it ? Code:- Code: [Select] function tree_gather($node) //Function to calculate count { $sql = "SELECT lchild,rchild FROM tree WHERE parent = '$node'"; $execsql = mysql_query($sql); $array = mysql_fetch_array($execsql); if(!empty($array['lchild']) || !empty($array['rchild'])) { $child[] = $array['lchild']; $child[] = $array['rchild']; $child[] = tree_gather($array['lchild']); $child[] = tree_gather($array['rchild']); } return $child; } Result:- Code: [Select] Array ( [0] => 2 [1] => 3 [2] => Array ( [0] => 4 [1] => 5 [2] => Array ( [0] => 10 [1] => 11 [2] => [3] => ) [3] => Array ( [0] => 8 [1] => 9 [2] => [3] => ) ) [3] => Array ( [0] => 7 [1] => 6 [2] => Array ( [0] => 15 [1] => 14 [2] => Array ( [0] => 16 [1] => 17 [2] => [3] => ) [3] => ) [3] => Array ( [0] => 13 [1] => 12 [2] => [3] => ) ) ) Table: - Ok I have a multidimensional array and what I want to know is how to use it. I need to pick the items from the array but only the items specified or individual keys in the array how would I go about doing that. Here is the array: <?php $monstors = array ( "Skeleton"=>array ( "mob_name"=>"Skeleton", "mob_attack"=>"5", "mob_hp"=>"30", "mob_level"=>"1" ), "Skeleton Fighter"=>array ( "mob_name"=>"Skeleton Fighter", "mob_attack"=>"10", "mob_hp"=>"35", "mob_level"=>"2" ), "Skeleton Warrior"=>array ( "mob_name"=>"Skeleton Warrior", "mob_attack"=>"15", "mob_hp"=>"40", "mob_level"=>"3" ) ); ?> How would I like print_r the element in the array called Skeleton Warrior? Code: [Select] while($row=mysql_fetch_assoc($query)) { $id = $row['id']; $col1 = $row['name1']; $col2= $row['name2']; $col3= $row['name3']; ${"$id"} = array("$col1","$col2","$col3"); ${"$s".$i}[] = ${"$id"}; } This is just a brief example of what i'm trying to accomplish,$i is incremented somewhere else. I'm trying to implode the arrays in the array. So below i have imploded the main array but how do i implode the other arrays? Code: [Select] for($i=0;$i<11;$i++) { $array = ${"s" . $i}; $outcomes = implode("",$array); //implodes main array } Hey guys, quick question. I have an array that looks like (blow). How can i sort it based on array[0][3], the #'s 1,2,3,4,5,6 are what i want to sort by in ASC order. Code: [Select] <?php Array ( [0] => Array ( [1] => Link Name [2] => URL [3] => 1 [4] => fy ) [1] => Array ( [1] => Link Name [2] => URL [3] => 2 [4] => fy ) [2] => Array ( [1] => Link Name [2] => URL [3] => 3 [4] => fy ) [3] => Array ( [1] => Link Name [2] => URL [3] => 4 [4] => fy ) [4] => Array ( [1] => Link Name [2] => URL [3] => 5 [4] => fy ) [5] => Array ( [1] => Link Name [2] => URL [3] => 6 [4] => fy ) ?> Thanks for the help. Hi All How do I go about splitting a multidimensional array into seperate smaller ones? Currently I have $grade[region][userid]=value. I'd like to split as $region1[userid]=value $region2[userid]=value $region3[userid]=value $region4[userid]=value $region5[userid]=value $region6[userid]=value Is there an inbuilt function for this? I have the following multidimensional array; Array ( => Array ( [value] => Alarm [safe] => Alarm [view] => Alarm ) [1] => Array ( [value] => Deadlocks [safe] => Deadlocks [view] => Deadlocks ) [2] => Array ( [value] => Security Doors [safe] => Security Doors [view] => Security Doors ) ) I'm trying to implode the array to end up with an output like "Alarm, Deadlocks, Security Doors". But I cannot for the life of me work out the correct PHP. I'm assuming i need some foreach loop? Any help would be greatly appreciated. how to create multidimensional array in php
<?php
$_SESSION["cart_item"] = array(
'cart_item' => array(
'id' => $id,
'product_name' => $product_name
));
}
$cart_items = $_SESSION["cart_item"];
foreach ($cart_items as $cart_item) {
echo $cart_item["id"] . $cart_item["product_name"];
}
?>
I have tried several variations of the foreach loop like the one above and I mostly get the error message: Notice: Array to string conversion. When I use: I get the following output: array(1) { ["cart_item"]=> array(2) { ["id"]=> array(2) { [0]=> string(1) "2" [1]=> string(1) "3" } ["product_name"]=> array(2) { [0]=> string(19) "Adult Female Bike" [1]=> string(18) "Kids Unisex Bike" } } } Trying to retun an array which gets a file from a directory and then returns the filename as the key and the complete file url as the value but when returning it it prints out "Array" for each file in the directory rather than the file name: Doing this in wordpress. Code: [Select] function wsme_select_css_theme(){ $alt_css_template_path = WSME_THEME_CSS; // Define path to files $alt_widgets_template = array(); // set array $out = ''; // Set var if ( is_dir($alt_css_template_path) ) { // If directory exists if ($alt_css_template_dir = opendir($alt_css_template_path) ) { //opens directory while ( ($alt_css_template_file = readdir($alt_css_template_dir)) !== false ) { //if files are in the directory if(stristr($alt_css_template_file, ".css") !== false) { //if the files are .css files $out[] = array($alt_css_template_file => WSME_THEME_CSS.'/'.$alt_css_template_file); //create the array(filename => file path) for each file in the directory } } } return $out; // return array } } Code: [Select] array( 'name' => 'Style', 'id' => WS_THEME_PREFIX . '_style', 'headings' => array( array( 'name' => 'Theme CSS', 'options' => array( array('name' => 'Homepage', 'desc' => ' select the css file of the theme you want for your site', 'id' => WS_THEME_PREFIX . '_theme_css', 'value' => '', 'options' => wsme_select_css_theme(), 'type' => 'select' ) ) ) ) Any suggestions? I'm trying to pull out a list of id's into a simple array, but I seem to be getting is a multidimensional array. All I need is a simple array with the list of id's. What am I doing wrong? //Get list of all sentence id's selected for test in database $allSentenceQuery = mysql_query("SELECT id FROM associations WHERE validate='checked'") or die("First Query: ".mysql_error()); while ($allSentenceResult = mysql_fetch_array($allSentenceQuery)){ $allSentences[] = $allSentenceResult['id']; //echo "allSentences: ".$allSentenceResult['id']; } And what I get: "Array ( => Array ( [1] => 2 [2] => 3 etc...." Thanks for your help! Hi, I am trying to get a random monster from my multidimensional "monsters" array. I have array monsters, and inside that I have array "ocean" and inside that are "fish", "shark" etc. like the below, and I am trying to pick out a random monster from the Ocean array. Any help greatly appreciated. thank you. Derek here is the array Code: [Select] $monsters = array ( 'Ocean'=>array ( 'octalisk'=>array ( 'name'=>'octalisk', 'hp'=>100, 'damageLow'=>1, 'damageHigh'=>15, 'exp'=>10, 'ac'=>'HAVE TO LOOK THIS UP', 'monsterInitiativeModifier'=>'HAVE TO LOOK THIS UP'), 'shark', 'eel' ), 'Desert'=>array ( 'sand_snake' ), 'Forest'=>array ( 'frog', 'lizard', 'spider' ) ); Hi, I have an array of type array_name[roll_number][aggregate_marks]. How do I sort such array on 'aggregate_marks'? My attempts on sort, asort haven't worked. I am trying to write a dirty script that removes duplicate rows from a multidimensional array. I want to be able to edit the function and spit the duplicates out to a CSV file. Here is my test file: $fullArray = array(array('Jim', 'Jones'), array('Pete', 'Pumpkin'), array('Barak', 'Obama'), array('Jason', 'Newstead'), array('Toby', 'Keith'), array('Jim', 'Jones'), array('Jim', 'Nelson')); echo "<h1>Original</h2>"; for($i=0; $i<count($fullArray); $i++) { echo $fullArray[$i][0] . " " . $fullArray[$i][1] . "<br />"; } echo "<h2>Checked</h2>"; $cleanArray = array(); $cay = array(); $nn=0; $dup=0; // Loop the entire input array foreach ($fullArray as $index => $item) { echo "foreach index:$index<br>"; // Start an internal pointer for ($f=0; $f<count($fullArray); $f++) { echo "for $f "; // if the index is lower or the same as the pointer, skip it to cut down on time if ($f > $index) { // if the rows are the same... if($fullArray[$f][0] == $item[0] && $fullArray[$f][1] == $item[1]) { echo "$item[0] DUP<br>"; // remove it from the array $cay = array_push($cleanArray, array($item[0], $item[1])); array_pop($fullArray[5]); $dup++; } else { // not a duplicate echo " not a dup<br>"; } } else { echo "ON THIS ONE<br>"; } } echo "<br><br>"; } echo"<br>$dup duplicates found<br><br>"; print_r($fullArray); echo "<br /><br>"; // print_r($item); print_r($cleanArray); ?> When I spit out the new fullArray variable, it still has an element from the duplicate record. This is what I get for the output of the full array after the duplicate was removed: Quote Array ( => Array ( => Jim [1] => Jones ) [1] => Array ( => Pete [1] => Pumpkin ) [2] => Array ( => Barak [1] => Obama ) [3] => Array ( => Jason [1] => Newstead ) [4] => Array ( => Toby [1] => Keith ) [5] => Array ( => Jim )[/b] [6] => Array ( => Jim [1] => Nelson ) ) |
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