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PHP - Php Associative Array Referenced By Numerical Index
I have an associative array that is serialized and stored in a MySQL DB.
The array is a duty roster for my son's Cub Scout camping trip (adult volunteers for specific jobs). When a user clicks a spot on the jQuery/client side, it sends it to my php page via ajax, which should pull up the array from the DB, unserialize it, replace the value "Available" with the person's name for the date/time/job that they clicked on. For ease of processing, I need to reference the value to replace by numerical indexes rather than the associative key string-type name, but when I try it, it just says Undefined offset. I thought I could access key/values using the numerical index in square brackets, just as I could if it were a non-associative array. What gives? (You can see near the end where I tried to access the array by index; this now-commented out line just tacked it on at the end, like it was recognizing the digits as strings instead of integers. I've tried to cast the values as integers before putting them in brackets, but same effect. Code: [Select] // get the duty roster array from the database $query = "select dutyroster from ".$eventsTable." where eventID = 1"; $result = mysql_query($query); if(!$result) { } else { //put the returned result into a usable array $returnedRows = mysql_fetch_array($result,MYSQL_BOTH); $unserializedArray = unserialize($returnedRows[0]); } //get the returned values for ID, email, and fillerValue $ID = "0-0-2-2";//$_POST['ID']; $email = "blank@blank.com";//$_POST['email']; $fillerValue = "Dude (test)";//$_POST['fillerValue']; // parse $ID to break out the array index & set them as variables $explodedArray = explode("-",$ID); $iDate = (int)$explodedArray[0]; $iTimeblock = (int)$explodedArray[1]; $iJob = (int)$explodedArray[2]; $iSlot = (int)$explodedArray[3]; echo "<br/> the values a idate: ".$iDate." and iTimeblock: ".$iTimeblock." and iJob: ".$iJob." and iSlot: ".$iSlot."</br>"; echo "<BR/> the random selected value to display is: ".$unserializedArray[0]; //$unserializedArray[$iDate][$iTimeblock][$iJob][$iSlot] = $fillerValue; print_r($unserializedArray); Similar TutorialsGood morning! I have a two dimensional array, basically a table (see code below). I want to get a value from the array using two methods: 1) Using the row's key: $NewValue = $MyArray[$UniqueKey]; 2) Using the row's index (row number, so to speak): $NewValue = $MyArray[$RowNumber]; The second print statement in the code below does not work. Both print statements should output the same value. Is there an easy way to do this? The table has hundreds of rows and I will not know the key value of row 879 nor can I generate it. So I cannot use array_keys(). And I DO NOT want to start at the first row and count up to the 879th row. Any clever ideas to share and enlighten? Thanks! <?php // Initialize the array keys and values $MyArray = array(); $MyArray['first']['col1'] = 'abc'; $MyArray['first']['col2'] = 'def'; $MyArray['first']['col3'] = 'ghi'; $MyArray['second']['col1'] = 'jkl'; $MyArray['second']['col2'] = 'mno'; $MyArray['second']['col3'] = 'pqr'; $MyArray['third']['col1'] = 'stu'; $MyArray['third']['col2'] = 'vwx'; $MyArray['third']['col3'] = 'yz'; $MyArray['fourth']['col1'] = 'a1a'; $MyArray['fourth']['col2'] = 'b2b'; $MyArray['fourth']['col3'] = 'c3c'; $MyArray['fifth']['col1'] = 'ddd'; $MyArray['fifth']['col2'] = 'eee'; $MyArray['fifth']['col3'] = 'fff'; // Two methods to get a value. Second one does nothing. print"{$MyArray['third']['col2']}</br>"; print"{$MyArray[2]['col2']}</br>"; ?> Hi there, Basic question, but I can't seem to find a page in the PHP docs that answers (though I'm sure such a one exists, I just can't seem to think up the right search terms - anyway) My question is: is there a short-hand way to use a value from an associative array as the key in another associative array? So for example, given this array: $the_array = array(0 => array('name': 'the_name', 'value' : 'the_value'), 1 => etc....); then this kind of foreach loop doesn't work Code: [Select] $new_data = array(); foreach($the_array as $element){ $new_data[$element['name']] = $element['value']; } Obviously I can just save out the values, like $name = $element['name'] --- but I was just wondering if there was a more efficient way to do it? Cheers, PS. I tried encapsulating with {} - i.e. $new_data[{$element['name']}] --- but that also fails. I have a associative array and I need to compare it to a normal array. Code: [Select] associative will have anywhere from 2-8 of these ['name'] ['color'] ['uid'] Code: [Select] normal array will have anywhere from 1-8 names ['name'] What I need to do is get the name of the people that are in the associative array that are not in the normal array. I've tried all sorts of different loops and what not and I cant seam to get anything to work in every case. Hello, I am not sure if you can help me or if this is the place but... I am running linux and php5.3.6 I am having problems that I did not experience on my Windows box and it has to do with arrays if ($answer['correct']) { (which contains 1 or 0) is throwing Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING removing the quotes works but just curious why it is not working and if there is a setting i can change Also $answers[] = $answer[id]; is throwing Parse error: syntax error, unexpected ']', expecting T_STRING or T_VARIABLE or T_NUM_STRING Thank you to anyone who might be able to help. Hello all!! I need help with an associative array I've been working on. I'm not sure if I should have typed the weekday in the index because I'm supposed to use the getdate() function to pull the day of the week into the array. I'm also supposed to use string functions to pull apart the value where it's connected with the colon ":". I've tried using explode() and strtok but I don't quite understand how they work...just like the getdate()..I don't understand. Thanks for any 'nudge' in the right direction you can offer. Code: [Select] <?php $title = "Associative Array"; $heading = "Daily Specials"; $specials = array( "Sunday" =>"52in Flat Screen TV:425.00", "Monday" =>"Amplifier:145.00", "Tuesday" =>"HP Computer:355.00", "Wednesday" =>"500GB External Harddrive:99.00", "Thursday" =>"Internal Speakers:55.00", "Friday" =>"Ergonomic Keyboard:85.00", "Saturday" =>"Wacom Tablet:175.00", ); echo "<html> <head> <title> $title </title> </head> <body> <h1> $heading </h1> <pre>\n"; //prints left and right aligned headers with 30 spaces printf ("%-30s%30s\n", "Items", "Price"); printf ("%'-60s\n", ""); foreach ($specials as $key=>$value); { //prints the key left aligned and the value right aligned //formats to two decimals spaces printf ("%-20s%20.2f\n", $key, $value); echo " </pre>\n"; $delimeter=":"; $inventory=strtok($inventory,$delimeter); while(is_string($inventory)) { if($inventory) { echo " $inventory\n"; } $inventory=strtok($delimiter); } $inventory=explode($delimeter,$inventory); foreach ($items as $item=>$price) { echo" $item, $price\n"; } echo " </pre>\n"; "</body> </html>\n"; ?> Hi guys. I have an associative array called $VisitorCountryID $VisitorCountryID = filter_countries(array('Country' => $_SESSION['UserCountryName'])); and the function filter_countries() returns all the information relating to the visitors country from the database. To find out what we have in the array, we do: print_r($VisitorCountryID); and it gives us: Array ( [14] => Array ( [CountryId] => 14 [Country] => Australia [FIPS104] => AS [ISO2] => AU [ISO3] => AUS [ISON] => 36 [Internet] => AU [Capital] => Canberra [Comment] => ISO includes Ashmore and Cartier Islands,Coral Sea Islands [sortOrder] => 1 ) ) Which is OK. Now i just want the CountryId which you can see in the array is 14 therefore I write: print_r($VisitorCountryID['CountryId']); Which should give me 14 but it return blank no output. I am surprised. What do you think is missing here. Any response / feedback always welcomed! Cheers! I WANT HELP WITH ASSOCIATIVE ARRAY THERE IS ARRAY LIKE THIS $ARRAY= array( 'dd'=>1, 'dde'=>233, 'qww'=2231 ) i want to store this array in database which data type i should i use want to use mixed data mixed string-numeric type which data type is suitable and i want to print indexes only but values only what should i do i have problem to get the sum from the associative array. i have to get sum for the 3 result that being display from the array
rsort($sub); }
<HTML> <?php $arr = array("sue" => "betsy", "frank" => "marge"); ?> </HTML> This produces the following HTML page: "betsy", "frank" => "marge"); Its like when I use the => to make my associative array, the code thinks I'm closing the php codeblock and then just prints the rest of it to the screen... Hello I have been taking a look at associative arrays. I 'sort' of get the key/value idea, but I'm not quite sure if they appropriate for use with 3 items (as opposed to the 2 key/value items.) In the code below, I can incorporate the 'company' and 'table' values - but I'm not sure how to add the 'id' value (from the query). I would very much appreciate some guidance here. Thank you. Code: [Select] $a = array(); // 'A' table array $b = array(); // 'B' table array $c = array(); // 'C' table array $query = "SELECT id, company, `table` FROM EXHIBITORS WHERE year = $year ORDER BY company ASC"; $result = mysql_query($query) or die("There was a problem with the SQL query: " . mysql_error()); if (mysql_num_rows($result) > 0) { while($row = mysql_fetch_array($result)) { $testCol = substr($row['table'], 0, 1); if ($testCol == 'A') { $a[$row['company']] = $row['table']; } else if ($testCol == 'B') { $b[$row['company']] = $row['table']; } else if ($testCol == 'C') { $c[$row['company']] = $row['table']; } } echo "<table>"; foreach($a as $key => $value){ echo "<tr><td>company: $key</td><td>Table: $value </td></tr>"; } echo "</table>"; echo "<table>"; foreach($b as $key => $value){ echo "<tr><td>company: $key</td><td'>Table: $value </td></tr>"; } echo "</table>"; echo "<table>"; foreach($c as $key => $value){ echo "<tr>"<td>company: $key</td><td>Table: $value </td></tr>"; } echo "</table>"; } else { echo "No Exhibitor data for the year $_POST[selectByYear]"; } Hi there! Ok I've a very simple code he $character = array (name=>"Joe", occupation=>"Programmer", age=>30, "Learned language "=>"Java" ); print_r($character); echo "<br/>"; foreach ( $character as $key=>$val ){ print "$key = $val <br>"; } The output is: Code: [Select] Array ( [name] => Joe [occupation] => Programmer [age] => 30 [Learned language ] => Java ) name = Joe occupation = Programmer age = 30 Learned language = Java Now instead of returning all the other elements, I just need to display only the first element in the array that is the value 'Joe'. I tried $val[name]; Output I get is not what I want: Code: [Select] J P J All responses/feedbacks is always welcomed Thank you! Hi guys, I'm really struggling trying toremove duplicates from an associative array. I've tried array_unique but it doesn't work. Can you point me in the right direction please? I'm populating my array using the following code Code: [Select] foreach($category['manufacturers'] as $manufacturer) { list($name, $id) = explode("|", $manufacturer); $brands[] = array("id" => $id, "name" => $name); } If the array contains: id = 1, name = brandA id = 2, name = brandB id = 1, name = brandA I'd like to remove either the first or third entry. I always struggle with associative arrays i need some help sorting my arrays. i have a class that selects data from database, and holds it inside a class to be used multiple times. rather then executing multiple queries. i know how to sort an array. but i am sorting arrays inside an array $data = arrray( array( 'id'=>1, '_name'=>'Server A', '_date_added'=>1298207645.5424, ); array( 'id'=>2, '_name'=>'Server B', '_date_added'=>1298247384.4839, ); array( 'id'=>3, '_name'=>'Server C', '_date_added'=>1298218493.0493, ); ); i want to sort my array descending by key _date_added hope you understand... I'm scraping a housing website with html source: Code: [Select] <tr><td> </td><td> Bedrooms </td><td> </td><td >3</td><td> </td></tr> <tr><td> </td><td> Full Baths </td><td> </td><td >1</td><td> </td></tr> <tr><td> </td><td> Partial Baths </td><td> </td><td >1</td><td> </td></tr> <tr><td> </td><td> Interior Sq Ft </td><td> </td><td >1,356</td><td> </td></tr> <tr><td> </td><td> Acres </td><td> </td><td >0.16</td><td> </td></tr> What i'm trying to do is create an associative array with only the details I want from the above. I've already got a function that steps through the HTML and creates an array element for each row with the contents of each <td> statement as follows: Code: [Select] $repl = array(" ", "(", ")"); $repl_with = array("", "", ""); foreach ($rows_feat as $id2 => $row2){ $features_raw = $scrape->fetchAllBetween('<td','</td>',$row2,true); //$features_data[str_replace($repl,$repl_with,strtolower(trim($features_raw[1])))] = trim($features_raw[3]); $countid=$countid+1; } The array produced by this would look like: features_raw[1] = Bedrooms features_raw[3] = 1 Basically, I want to take data like this: Beds 1 Baths 1 Garage Yes and create an array on the fly: House[beds]=1 House[baths]=1 House[garage]="yes" The problem is that the order of Beds, Baths and Garage changes. So on some house pages the order would be Baths, Garage, Beds.. etc. Any pointers out there? Thanks, Brett I came up with this but it outputs the value 3 times... (because there are 3 variables) ie mathsmathsmaths How do I fix this or do it the correct way? Thanks Code: [Select] $subject = "maths"; $phone = "1235"; $colour = "red"; $all_vars = compact("subject", "phone", "colour"); get_value($subject); function get_value($variable){ global $all_vars; foreach($all_vars as $key=>$value){ if ($key = $variable) { echo $key; } } }
This is the cart array: I want the key to be "id" and the value to be "quantity" like it is for the cart array. How do I define my cart_items array using variables? Hey everyone. I'm in the final stage of my thingeee (yay). The last thing I need is to prepare a report, but I'm slightly lost on how to do it. Essentially, I have a query that returns some financial records and need to aggregate the data manually (in PHP). I'm familiar with the foreach($assoc_array as $array) function, and I'd like to use it to manipulate the output as follows: For the first key (instType), this will mark the start of a new table element For a second key (paymentID), this will mark the start of a new table row element For a third key, (instrumentID), this will mark a new column (<td>) Then, I need to sort by two other keys - deptID, userID, accountID How do I accomplish this? Pseudo-code is acceptable (my array is called $data and contains all the keys I listed above) Hi guys
A mobile application send data in Json format, so I want to insert the data into Mysql table, when I try to insert I have gotten the error "PHP Warning: mysqli::prepare() expects exactly 1 parameter, 3 given", my table only has 2 columns, "id" and "name" column.
The array has this data
(
[0] => ('id', '2')
[1] => ('name', 'Jhon')
)
The function to parse and insert data ...
function redeem() {
// Check for required parameters
$json = file_get_contents('php://input');
$obj = json_decode($json,true);
// Assumes $obj == array(0 => $assocArray, 1 => $assocArray)
foreach($obj as $index => $assocArray) {
// Assumes $assocArray == array(0 => array('id' => '2'), 1 => array('name' => 'John'))
$stmt = $this->db->prepare('INSERT INTO prueba (id,nombre) VALUES (%d,%s)',$assocArray[0]['id'],$assocArray[1]['name']) or die(mysqli_error($this->db));
$stmt->execute();
}
}
Edited by Maq, 06 June 2014 - 03:54 PM. I am trying to write a shopping cart script, that once they have confirmed their order it will insert into the database their order information. Basically as a product can have a number of different quanitities that they wish to purchase, I want to create an associative array that has a product, linked to the quantity. I want to do this so that the order information stays in one row in the database, so in the 'product' row, it has values like (cow -> 2) cow being the product and 2 being the quantity. Here is the code I am developing, and I have commented in the array which I am trying to create just the show my idea of thinking. any help, will be greatly appreciated! function updateCart($product_id,$id){ if($_SESSION['cart']) { foreach($_SESSION['cart'] as $product_id => $quantity) { $total = 0; $sql = sprintf("SELECT title, price, shipping FROM product WHERE pkID = %d;",$product_id); $result = query($sql); if(numRows($result) > 0 ){ $row = getResult($result); $price = $row['price']; $shipping = $row['ship']; $line_cost = ($price + $shipping) * $quantity; $total = $total + $line_cost; $product[] = $row['title'] -> $quantity; //unsure of how to code $sql2 = "INSERT INTO cart (userID, products, total, date) VALUES ('$id', '$product', '$total' '$date')"; $query = query($sql2); } } }else{ $alert = 'No items in shopping cart.'; } return $total; } I am an ASP.NET developer and I have to call a soap methed written in PBP that takes an argument required an associative array such as $prices = array( 'Tires'=>'test1', 'Spark Plugs'=>'test2' ); can yoiu tell me what the internal representation is of the above |
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