I believe this is probably a very simple question, but since I'm just dealing with numbers, it sorta makes my brain hurt.
Below is my form with some lines removed due to being irrelevant to the question
$envList = $link->query("SELECT * FROM environments");
echo "<form action = 'editEnvOrderExec.php' method = 'post'>";
echo "<input type = 'hidden' name = 'userID' value = '".$userID."'>"
while($row = $envList->fetch_assoc()){
$eName = $row['name'];
$dID = $row['displayID'];
$eID = $row['id'];
echo $eName.": <input type = 'text' name = 'eID[".$eID."]' value = '".$dID."'><BR>";
}
Upon submitting the $_POST looks like this
array(2) {
["userID"]=>
string(1) "2"
["eID"]=>
array(6) {
[1]=>
string(1) "1"
[3]=>
string(1) "2"
[4]=>
string(1) "3"
[5]=>
string(1) "4"
[6]=>
string(1) "5"
[8]=>
string(1) "6"
}
}
I need to take the values in the brackets, [1][3][4][5][6][8] and for each one have a mysql statement update the displayID with the value [1][2][3][4][5][6]. My problem is I can't figure out how to target each one...
NOTE: I know I need to sanitize values, as well as check if a display ID is already used and such, but this is just v0.1. Trying to get functionality down, then I can tackle those other issues
Easiest way is if you're iterating over the loop using foreach:
$eID = $row['eID'];
foreach ($eID as $key => $value) {
// here $key is the array key you're looking for.
}
Related
On my page, I have a checkbox, the user can select checbox and go after in comparison page
For that I use the session save the id checkbox selected.
The user can return on a page wehre there is again checkbox and select other.
The problem with this selections, we can have the same id products selected under a session.
ex
first action
id = 1
id = 2
id = 3
go to selected comparison page
second action
id = 2
id = 4
id = 5
third action
id = 2
id = 4
id = 6
To remove the id I use this code :
$products_id = HTML::sanitize($_POST['products_id']);
if (is_array($_SESSION['productsCompare']) && isset($products_id)) {
$remove_array = $_SESSION['productsCompare'];
$i = 0;
foreach ($remove_array as $value) {
if ($value == $products_id) {
unset($_SESSION['productsCompare'][$i]);
}
$i++;
}
if (count($remove_array) == 1) {
unset($_SESSION['productsCompare']);
}
}
like you can see, if $value == $products_id
the id s removed, but not the id duplicated.
My problem is when there is just one product with the 3 or 4 same duplicate id.
I must click on remove button 4 times to remove the products.
How to udate the loop to erase all the same id in only one time ?
Thank you.
example of $_SESSION['productsCompare'] duplicated
array(11) { [0]=> string(2) "14" [1]=> string(2) "14" [2]=> string(2) "14" [3]=> string(2) "14" [4]=> string(2) "13" [5]=> string(2) "13" [6]=> string(2) "14" [7]=> string(2) "13" [8]=> string(2) "14" [9]=> string(2) "13" [10]=> string(2) "11" }
If you want to remove duplicate values in the array, try using the array_unique method.
also, $_POST['products_id'] might be returning an array of product ids.
if this is the case, then $value == $products_id wont work, and you will have to replace it with in_array($value,$products_id) instead.
I have a custom table in MySQL database, which I am trying to query using global $wpdb. I have defined my query using information available from the following two sources:
https://codex.wordpress.org/Class_Reference/wpdb
https://wordpress.stackexchange.com/questions/233021/display-data-on-word-press-site-posts-and-pages-from-mysql-table
This is how the data is in phpMyAdmin:
The query seems to be working fine as it selects data from my custom table, however the output seems to contain garbage/unnecessary information apart from the information that is available in the table.
I want it to display as a table/similar to how it is displayed in phpMyAdmin, where I am able to associate the SrNo, Compound etc with other columns in the table:
add_shortcode('wpse_233031_shortcode', function(){
global $wpdb;
$myrows = $wpdb->get_results( "SELECT `SrNo`, `Compound` FROM PNaphtha");
//$results = $wpdb->get_results( "SELECT `SrNo`, `Compound` FROM PNaphtha" );
ob_start();
echo var_dump($myrows );
//return ob_get_clean();
});
I get the following results
array(10) {
[0]=> object(stdClass)#6275 (2) {
["SrNo"]=> string(1) "2"
["Compound"]=> string(12) "abietic acid"
}
[1]=> object(stdClass)#6274 (2) {
["SrNo"]=> string(1) "3"
["Compound"]=> string(12) "acenaphthene"
}
[2]=> object(stdClass)#6273 (2) {
["SrNo"]=> string(1) "4"
["Compound"]=> string(6) "acetal"
}
[3]=> object(stdClass)#6272 (2) {
["SrNo"]=> string(1) "5"
["Compound"]=> string(12) "acetaldehyde"
}
[4]=> object(stdClass)#6271 (2) {
["SrNo"]=> string(1) "6"
["Compound"]=> string(9) "acetamide"
}
[5]=> object(stdClass)#6270 (2) {
["SrNo"]=> string(1) "7"
["Compound"]=> string(11) "acetanilide"
}
[6]=> object(stdClass)#6269 (2) {
["SrNo"]=> string(1) "8"
["Compound"]=> string(11) "acetic acid"
}
[7]=> object(stdClass)#6268 (2) {
["SrNo"]=> string(1) "9"
["Compound"]=> string(16) "acetic anhydride"
}
[8]=> object(stdClass)#6267 (2) {
["SrNo"]=> string(2) "10"
["Compound"]=> string(7) "acetone"
}
[9]=> object(stdClass)#6266 (2) {
["SrNo"]=> string(2) "11"
["Compound"]=> string(19) "acetone cyanohydrin"
}
}
Although, all of the information I queried is available here, there is also a lot of unnecessary information.
I tried the following changes, however none of them seems to be working
$myrows = $wpdb->get_row( "SELECT `SrNo`, `Compound` FROM PNaphtha"); // get_row
output_type changed to ARRAY_A, ARRAY_N, OBJECT_K
echo var_dump changed to echo array
I will appreciate if you could please advise on how to get the results to format as a table or array. Also, I have placed the above code in the functions.php file of my theme. Is there a better way to do this?
So, you're getting object as output, that's why you're seeing that information in there. Make the following change. Add 'ARRAY_A' (associative array) to the end of your function call.
$wpdb->get_results( "SELECT `SrNo`, `Compound` FROM PNaphtha", ARRAY_A);
That will keep your query from being returned as an object and your var_dump will look the way you expect.
It may be because you are using var_dump
The var_dump function displays structured information about variables/expressions including its type and value.
I would recommend using print_r
The print_r() displays information about a variable in a way that's readable by humans. array values will be presented in a format that shows keys and elements.
You should be able to see a change if you change
var_dump($myrows )
to
print_r($myrows)
Here's how I did what you are wanting (Without echoing the result):
$sql = "SELECT `Srno`,`compound` FROM `pnaphtha`";
$result = $conn->query($sql);
echo "<table>";
while($row = $result->fetch_assoc()) {
echo "<tr><td>".$row['Srno']."</td><td>".$row['compound']."</td></tr>";
}
echo "</table>";
However since you are using WordPress I would suspect it would be something along the lines of
global $wpdb;
$sql = "SELECT `SrNo`, `Compound` FROM PNaphtha";
//you may need to add ARRAY_A
$myrows = $wpdb->get_results($sql);
echo "<table>";
while($myrows = $result->fetch_assoc()) {
echo "<tr><td>".$myrows['SrNo']."</td><td>".$myrows['Compound']."</td></tr>";
}
echo "</table>";
I can't actually test the wordpress version as I can't be bothered to set up a wordpress install haha
Im trying to setup a dynamic settings database for my CMS
Database is set up with two columns.
Name | Value
Template | Exige
InstallFolder | v2
Basically I want to pull all the data out and put it into different variables.
for example i'm trying to set my base_folder(installation folder) into a variable.
So say $base_folder = $CoreSettings[1] output which should show (v2)
$sql = "SELECT * FROM core_settings";
$query = mysqli_query($dbc, $sql) or die (mysqli_error($dbc));
$CoreSettings = array();
while($row = mysqli_fetch_assoc($query)){
// add each row returned into an array
$CoreSettings[] = $row;
}
$base_folder = $CoreSettings;
foreach( $CoreSettings as $key => $val)
{ $$key = $val; }
var_dump($base_folder);
This then outputs:
array(5) { [0]=> array(2) { ["name"]=> string(8) "Template" ["value"]=> string(5) "exige" } [1]=> array(2) { ["name"]=> string(13) "InstallFolder" ["value"]=> string(2) "v2" } [2]=> array(2) { ["name"]=> string(16) "MaintainanceMode" ["value"]=> string(1) "0" } [3]=> array(2) { ["name"]=> string(4) "Logo" ["value"]=> string(8) "Logo.png" } [4]=> array(2) { ["name"]=> string(8) "SiteName" ["value"]=> string(18) "Black Nova Designs" } }
I would like to just get the InstallFolder Value.
so
$base_folder = V2
Sorry if this comes across stupid just really racked my brain about, and code is probably quite messed up due to trying multiple methods.
But in the long run I would like to get every setting out of the database and be able to assign a variable to each setting.
for example
$SiteName = $CoreSettings[4];
$maintenance = $CoreSettings[2];
Thanks In advanced.
Kyle
Index you $CoreSettings array with the values of the 1st column, then you can access the values by the appropriate key:
$CoreSettings = array();
while($row = mysqli_fetch_assoc($query)){
// add each row returned into an array
$CoreSettings[$row['name']] = $row['value'];
}
echo $CoreSettings['InstallFolder']; //outputs V2
echo $CoreSettings['Template']; //outputs Exige
This is for a recipe project where users use a form and enter their own recipes. I have that whole part working. Now I'm trying to retrieve the recipe's information from the database and display it on a page. Anyway, this is the code I have right now.
<?php
include_once('includes/connection.php');
include_once('includes/recipe.php');
$recipe = new Recipe;
if (isset($_GET['id'])) {
$id = $_GET['id'];
$basic_data = $recipe->fetch_data($id);
$sql1 = $pdo->prepare("SELECT recipes.*, categories.* FROM recipes
INNER JOIN categories
ON (recipes.category_ID = categories.category_ID)
WHERE recipes.recipe_id = ?");
$sql1->bindValue(1, $id);
$sql1->execute();
$results1 = $sql1->execute();
echo $results1 = $sql1->fetchAll(PDO::FETCH_ASSOC);
var_dump($results1);
?>
This is what I see on my webpage when this code runs. I've never worked with associative arrays before, so I'm really lost as to how I can echo specific data contained in one. For the purpose of this question, I'm focusing on the "category_name" and I'm trying to echo just the value stored in the "category_name" for this recipe, which happens to be "none". How do I echo just the word "none" to the page?
Arrayarray(1) {
[0]=> array(15) {
["recipe_ID"]=> string(1) "1"
["recipe_name"]=> string(20) "English Muffin Pizza"
["category_ID"]=> string(1) "1"
["servings_ID"]=> string(2) "13"
["prep_hours"]=> string(1) "0"
["prep_minutes"]=> string(2) "20"
["cook_hours"]=> string(1) "0"
["cook_minutes"]=> string(2) "10"
["oven_temp"]=> string(3) "350"
["directions"]=> string(402) "These are the directions."
["extra_comments"]=> string(37) "This is a short extra comment."
["recipe_favorite"]=> string(1) "1"
["recipe_photo"]=> string(0) ""
["created"]=> string(19) "2014-09-20 10:22:39"
["category_name"]=> string(4) "none" }
}
Please let me know if I can give you any more information. It's been a long day and I may be missing something that could help you to help me.
If you are strictly trying to echo category_name in this array you would just write:
echo $results1[0]['category_name'];
You need to use a loop to go through $results. That will echo category_name for all recipes.
foreach ($results1 as $recipe) {
echo $recipe['category_name'];
}
If you know you want the recipe at key 0 (first recipe), you can simply do:
echo $results[0]['category_name'];
I've been playing around with this one for a few days, I'm not a professional coder but I'm trying to put a nice basic system in place to manage checkin/out at a local volunteer rescue organization.
Basically I'm trying to get all members member with the ISLOGGEDIN value set as 1
$loggedin = mysql_query("SELECT * FROM members WHERE ISLOGGEDIN=1");
$loggedinarray=mysql_fetch_array($loggedin);
And present their information (name, etc) into a table:
foreach($loggedinarray as $key=>$value) {
echo "
<tr>
<td>".$value[firstname]." ".$value[lastname]."</td>
<td>".$value[timeloggedin]."</td>
</tr>
";
}
However the results I'm getting are quite random and not what I'm looking for, at all!
var_dump($loggedinarray) output:
array(12) { [0]=> string(5) "5395" ["SES_ID"]=> string(5) "5395" [1]=> string(7) "Anthony" ["FIRST"]=> string(7) "Anthony" [2]=> string(8) "LastName" ["LAST"]=> string(8) "Willison" [3]=> string(1) "1" ["ISLOGGEDIN"]=> string(1) "1" [4]=> string(1) "0" ["TRAINER"]=> string(1) "0" [5]=> string(1) "1" ["OFFICER"]=> string(1) "1" }
Any help would be greatly appreciated!
You have to use while; it was random, because it fetched only one row from table.
$loggedin = mysql_query("SELECT * FROM members WHERE ISLOGGEDIN = 1");
if (mysql_num_rows($loggedin) > 0) {
echo "<table>";
while ($row = mysql_fetch_array($loggedin)) {
echo "
<tr>
<td>".$row['FIRST']." ".$row['LAST']."</td>
<td>".$row['timeloggedin']."</td>
</tr>
";
}
echo "</table>";
}
This code will output every row from table, where ISLOGGEDIN = 1.
PS: about data $row['timeloggedin'], you dont have it in your query (as seen in var_dump), so it will be an empty string.