this is a follow up to another question which I was instructed to split up. I have different set of columns and their values some which have values, some which don't. For example:
$vCountries ['country1'] = "Value of country1";
$vCountries ['country2'] = "Value of country2";
$vCountries ['country3'] = "";
$vCountries ['country4'] = "Value of country4";
$vCountries ['country5'] = "";
...through to
$vCountries ['country50'] = "Value of country50";
I would like to generate the following code example (only when it contains a value):
<th id="country1">Value of country1</th>
<th id="country2">Value of country2</th>
<th id="country4">Value of country4</th>
...
Since all country ID's are generically named with only an index to differ them, I would like these headings to be generated dynamically.
Someone has suggested the following code:
for ($i = 1; $i <= 50; ++$i) {
$vCountries['country' . $i] = "Value of country " . $i;}
But firstly, I don't understand how it is working and how I can parse it to the code at the top because for now it only prints array array array etc. and the "Value of country .$i" is not generic and indexed, it is an actual value different for each country, so I would still have to list it manually, no?
Any ideas?
Thanks
This will do it.
foreach($vCountries as $id => $value)
{
if($value)
{
echo "<th id=\"$id\">$value</th>";
}
}
This outputs only entries with values. Each id is output as the <th> id, and each value is displayed inside the <th> tag.
This generates the code you want :
foreach ($vCountries as $key => $value)
{
if (strlen($value) > 0)
echo "<th id=\"$key\">$value</th>";
}
If your goal is to generate the said HTML code from the array, which is already defined, then this may be a solution for you:
// Loop the array
foreach ($vCountries as $key => $value) {
// If value is not empty
if (!empty($value)) {
// display the line
echo '<th id="'.$key.'">'.$value.'</th>'."\n";
}
}
Related
I have an "Events" table in MySQL :
EventsDate('id','event','start_date','end_date')
I'd like to check if multiple events have the same start date to show it differently in my HTML template.
My SQL request is :
SELECT * FROM EVENTSDATE where event='$id' and start_date>='$today' order by start_date asc
Now my foreach :
foreach ($upcomingDates as $value) { //$upcoming is the array with my sql request
}
How can I say : "if you find two rows with the same start_date, echo something"
I have a slightly different approach.
// Array to contain all values
$container = array();
// Loop through your existing array
foreach ($upcomingDates as $key => $value) {
// Check if the value is already in the container array
// If this is the case, its a duplicate.
if (array_key_exists($value['start_date'], $container)) {
$container[$value['start_date']]++;
echo $value.' is a duplicate with key '.$key;
}
// Add each value to the array
$container[$value['start_date']] = 1;
}
Another method is to use array_count_values()
foreach(array_count_values($upcomingDates) as $value => $c) {
if ($c > 1) {
echo $value.' is a duplicate';
}
}
Note that the second option won't work if your $upcomingDates is an array of arrays.
You can make an empty array before the for loop, and add each value in as a key. Then, on each iteration you can check that array for the key, like so:
$values = [];
foreach ($upcomingDates as $value) { //$upcoming is the array with my sql request
if(isset($values[$value])) //duplicate value found
//do something here
$values[$value] = 1;
}
Since you're ordering your events by start_date:
for ($i = 0, $length = count($upcomingDates); $i < $length; $i++) {
$date = $upcomingDates[$i];
if (isset($upcomingDates[$i + 1]) &&
$upcomingDates[$i + 1]['start_date'] == $date['state_date']) {
echo 'this and the next date are equal';
}
}
Try out GROUP BY
look here: GROUP BY
if you want to find duplicates, then you can directly get it from database
ex.
SELECT * FROM EVENTSDATE where event='$id' and start_date>='$today' GROUP BY start_date having count(start_date) > 1 order by start_date asc
or you can find duplicates from resulting array
return only duplicated entries from an array
I am using PHP 5.4 with a MySQL database.
This database represents a media library. The table I'm dealing with has one column, "Title", with obvious contents, and then a series of boolean columns, representing the availability of that title on a given platform. So a row looks like
TITLE: "Curb Your Enthusiasm: The Game"
PS4: 0
Atari 2600: 1
Dreamcast: 0
And so on.
The PHP code I would like to write be, in pseudocode,
Echo row[0] (title)
Cycle through other cells in the row
If the cell is '0' or NULL, do nothing
But if the cell is '1', echo the name of that column
So the result would be the echoing of
Curb Your Enthusiasm: The Game (Atari 2600, WonderSwan, Saturn)
It's the fourth statement that I can't quite work out. It seems to require the function mysqli_fetch_field, but I'm not sure of the syntax, and nothing I try after googling quite works.
I'd really appreciate any advice or examples someone could offer!
$database = mysqli_connect(SERVER,USERNAME,PASSWORD,'games');
$query = mysqli_query($database,"SELECT * FROM games` WHERE NAME LIKE '%ZELDA%'");
while ($row = mysqli_fetch_row($query)) {
echo $row[0]; // Echo title
for ($i=0;$i<sizeof($row);$i++) {
if ($row[$i] === '1') {
// ???????
}
}
}
Here is some rough untested code that should hopefully get you going.
while ($row = mysqli_fetch_assoc($query)) {
$columns = array(); // this will track the additional columns we need to display
foreach($row AS $column => $value) {
if($column == "title") {
echo $value; // this is the title, just spit it out
continue;
}
if($value == 1) {
// We have a column to display!
$columns[] = $column;
}
}
if(count($columns)) {
// We have one or more column names to display
echo " (" . implode(", ",$columns) . ")";
}
}
Some things to point out:
Using mysqli_fetch_assoc will allow you access to column names along with the values, which is useful here.
Keep track of the columns you want to display in an array first, this makes it easier at the end of each loop to format the output.
Sounds like you can do something like this:
// Simulates DB fetch
$titles = array(
array(
'TITLE'=>'Curb Your Enthusiasm: The Game',
'PS4'=>0,
'Atari 2600'=>1,
'Dreamcast'=>0
),
array(
'TITLE'=>'Curb Your Enthusiasm: The Book',
'PS4'=>1,
'Atari 2600'=>1,
'Dreamcast'=>0
)
);
foreach($titles as $title){
// get supported platforms
$supportedPlatforms = array();
foreach($title as $titleAttribute=>$titleValue){
if($titleAttribute != 'TITLE' && $titleValue == 1)
$supportedPlatforms[] = $titleAttribute;
}
echo $title['TITLE'] . ' (' . implode(', ', $supportedPlatforms) . ')' . "<br>";
}
Try running it here: http://phpfiddle.org/lite/code/pr6-fwt
I have a code that takes posted data from form A and then find the prices of goods and display them. Now i need to do more with the following data in the body of the 2nd form:
Item name
Item Qty
Item Price
The code is here:
<?php
echo "<div style='width:30%; height:auto; border: 2px solid;'>";
echo "<h1>The Items Are...</h1><br>";
//array that will hold the sum of each item cost
$totalAmountArray = array();
foreach ($_POST['basket'] as $name => $value)
{
//indexer for totalAmountArray
$i=0;
if($value > 0){
//echo $name . ": " . $value . "<br>";
$itemPrice;
//reassign
$itemName = $name;
$itemQty = $value;
//sql connection..
mysql_connect();
mysql_select_db("xxxxxx");
$result = mysql_query("SELECT * FROM pricing WHERE item = '".$name."'");
while($row = mysql_fetch_array($result)){
$itemPrice = $row['price'];
/*DEBUGGING*/
echo "Item Name: <b>".$itemName . " </b># ";
echo "<b>".$itemPrice ." </b>X ".$itemQty."<br>";
}//end of while loop
//multiply to get total for this item - store in temp
$temp = $itemQty * $itemPrice;
//store temp at index i in totalAmountArray
array_push($totalAmountArray, $temp);
unset($result);
unset($itemPrice);
unset($itemQty);
unset($temp);
}//end of if-statement
}//end of foreach
echo "<h1>Total Amount:<br></h1> ";
//print_r($totalAmountArray);
$sum;
foreach($totalAmountArray as $perItemPrice){
$sum += $perItemPrice;
}
echo "<b>SR. ".$sum."</b>";
echo "</div>";
?>
I am thinking of storing all the details returned from above foreach's into multidimensional array to have something like this:
[0] => itemName => itemQty => itemPrice <br>
[1] => itemName => itemQty => itemPrice <br>
[2] => itemName => itemQty => itemPrice <br>
[3] => itemName => itemQty => itemPrice <br>
.....
would this be the best way? and how can it be done? I am really unfamiliar with multidimensional arrays in practice (only in theory).
Thanks a lot for the help and advice,
I may be wrong but since you want an advise I just do not see the point on why would you use a two dimensional array in this situation (although I may misunderstood your question and may wrong but I think the best way to solve your problem is to create a class Item in that class has a variables itemName itemQty itemPrice and then store information about every object item in to an array
Hold an array of an array. Making multi dimensional arrays can get a little confusing. For each item, it holds an array of all its data. Another way is to make an object (class), say "items" which holds each piece of data from the form. Each form submission object is then put into an array for sorting and retrieval.
So it would be
[sudo PHP]
class foo
{
int formID
string submitterName
string bar
}
foo->formID = $row['id']
myArray[lastPosition + 1] = foo
for (int i = 0; i < foo.length; i++)
{
echo foo[i]->formID
}
I haven't touched PHP in years, sorry about the wierd half-PHP looking code, just thought I might deliver an answer quickly!
I'm trying to make a simple alphabetical list to order items in my database. The thing I can't figure out is how to actually list it.
I would like it to be the same format as you have on miniclip.com
Here's an image
I looked around, but couldnt find an answer really.
(I would like it to finish even at the end of each vertical column, except the last one for sure)
Any help would be welcome!
In MySQL:
SELECT * FROM table ORDER BY name ASC
In PHP:
$fruits = array("lemon", "orange", "banana", "apple");
sort($fruits);
foreach ($fruits as $key => $val) {
echo "fruits[" . $key . "] = " . $val . "\n";
}
fruits[0] = apple
fruits[1] = banana
fruits[2] = lemon
fruits[3] = orange
Assuming that your result set already is sorted by using the ORDER BY clause, to group the results by their first character you just need to remember the first character of the previous entry and print out the first character of the current entry if they are different. So:
$prevLabel = null;
while ($row = mysql_fetch_assoc($result)) {
$currLabel = strtoupper(substr($row['name'], 0, 1));
if ($currLabel !== $prevLabel) {
echo $currLabel;
$prevLabel = $currLabel;
}
echo $row['name'];
}
This will print the first character as a label for each group that’s members have the same first character.
He doesn't seem to have an issue with the storting, but doing the column format and headers for each new letter.
Suppose $arr contains your alphabetically sorted list with numeric keys. each element has indexes 'name' and 'link'. This should be pretty safe assumption for data from a SQL query.
$firstLetter = -1;
$desiredColumns = 4; //you can change this!
$columnCount = (count($arr)+27)/$desiredColumns+1;
echo "<table><tr><td>";
foreach($arr as $key => $cur)
{
if ($key != 0 && $key % desiredColumns == 0) echo "</td><td>";
if ($cur['name'][0] !== $firstLetter)
{
echo "<strong>$firstLetter</strong> <br />"; $firstLetter = $cur['name'][0];
}
echo "".$cur['name']."<br />";
}
echo "</td><tr></table>";
You'll have to treat numbers as a special case, but this is the idea. If you are using a template engine there are obviously better ways of doing this, but I figure you would have mentioned that. This is a rough sketch, making pretty HTML isn't my thing.
--Query-- get table into $arr. I can't see your tables obviously, Im making assumptions if names nad stuff so you'll need to verify or change them
$sql = "SELECT * FROM table T ORDER BY name";
$conn = //you should have this
$res = mysql_query($sql, $conn);
$arr = array();
while($row = mysql_fetch_assc($res)
$arr[] = $row;
// start above code here. This isn't safe for empty query responses or other error but it works
I presume you're using MySQL (or another SQL) database, in which case you should simply retrieve the data in the required order using a SORT BY clause on the lookup SELECT. (Sorting this PHP is trivial via the sort function, but it makes sense to get the database to do this - that's pretty much what it's for.)
In terms of balancing the output of each of the columns, you could get a COUNT of the required rows in your database (or simply use the count of the resulting PHP array of data) and use this to ensure that the output is balanced.
As a final thought, if this is going to be output on a per-page basis, I'd highly recommend generating it into a static file when the structure changes and simply including this static file as a part of the output - generating this on the fly is needlessly resource inefficient.
The mysql option mentioned above is definitely the best bet. If the data comes out of the DM in order, that's the simplest way to go.
Your next option might be to look at the
asort and ksort functions in PHP to find the exact one you're looking for.
http://www.php.net/manual/en/array.sorting.php
How are you pulling the data?
<?php
$result = mysql_query("SELECT titles FROM gamelist ORDER BY title ASC");
while ($row = mysql_fetch_assoc($result)) {
echo "{$result['title']}<br/>";
}
?>
There are two ways to do it.
You could use your database and use the 'order' clause to pull them by a specific field alphabetically.
You could also use either a key sort or value sort on a PHP array.
The PHP functions are sort($array) and ksort($array).
http://php.net/manual/en/function.sort.php
http://php.net/manual/en/function.ksort.php
<?php
$list = $your_list_array_from_database
//if you need info on how to do this, just let me know
sort($list);
foreach($list as $item) {
echo $item;
}
?>
I found this post and had the same problem. I used the code below to output a list by category name with a header equal to the first letter. In my database table (category) I have name and category_letter. So, name = football and category_list = 'F'.
<section>
<?php
try {
$cats_sql = $dbo->prepare("SELECT name, category_list, FROM category WHERE category_list REGEXP '^[A-Z#]' GROUP BY category_list ASC");
$cats_sql->execute();
$results_cats = $cats_sql->fetchAll();
} catch(PDOException $e) {
include('basehttp/error');
}
$array_cats = $results_cats;
if(is_array($array_cats)) {
foreach($array_cats as $row_cats) {
$cat_var = $row_cats[category_list]; // Each Category list title
?>
<aside>
<h1><a name=""><? echo $cat_var ?></a></h1>
<?php
try {
$search_sql = $dbo->prepare("SELECT name, category_list FROM category WHERE category_list=:cat_var ORDER BY name ASC"); // Pulling a list of names for the category list
$search_sql->bindParam(":cat_var",$cat_var,PDO::PARAM_STR);
$search_sql->execute();
$results_search = $search_sql->fetchAll();
} catch(PDOException $e) {
include('basehttp/error');
}
$array_search = $results_search;
if(is_array($array_search)) { // Output list of names which match category
foreach($array_search as $row_search) {
?>
<h2><?php echo $row_search[name]; ?></h2>
<br class="clear">
<?php
}
}
?>
</aside>
<br class="clear">
<?php
}
}
?>
</section>
Its actually Simple....I did similar thing for my project once. I had to pull out all music albums name and categorize them in alphabetical order.
In my table, "album_name" is the column where names are stored.
$sql= "select * from album_table order by album_name ASC";
$temp_char= ""; // temporary variable, initially blank;
using while loop, iterate through records;
while($row= $rs->fetch_assoc())
{
$album_name= $row['album_name'];
$first_char_of_albm= $album_name[0]; // this will store first alphabet;
$first_char_of_albm= strtoupper($first_char_of_albm); // make uppercase or lower as per your needs
if($temp_char!=$first_char_of_albm)
{
echo $first_char_of_albm;
$temp_char= $first_char_of_albm; // update $temp_char variable
}
}
That's it....
I am posting my answer to this old question for 3 reasons:
You don't always get to write your queries to MySQL or another DBMS, as with a web service / API. None of the other answers address PHP sorting without query manipulation, while also addressing the vertical alphabetical sort
Sometimes you have to deal with associative arrays, and only a couple other answers deal with assoc. arrays. BTW, my answer will work for both associative and indexed arrays.
I didn't want an overly complex solution.
Actually, the solution I came up with was pretty simple--use multiple tags with style="float:left", inside of a giant table. While I was sceptical that having multiple tbody tags in a single table would pass HTML validation, it in fact did pass without errors.
Some things to note:
$numCols is your desired number of columns.
Since we are floating items, you may need to set the width and min-width of parent elements and/or add some <br style="clear: both" />, based on your situation.
for alternative sorting methods, see http://php.net/manual/en/array.sorting.php
Here's my full answer:
function sortVertically( $data = array() )
{
/* PREPARE data for printing */
ksort( $data ); // Sort array by key.
$numCols = 4; // Desired number of columns
$numCells = is_array($data) ? count($data) : 1 ;
$numRows = ceil($numCells / $numCols);
$extraCells = $numCells % $numCols; // Store num of tbody's with extra cell
$i = 0; // iterator
$cCell = 0; // num of Cells printed
$output = NULL; // initialize
/* START table printing */
$output .= '<div>';
$output .= '<table>';
foreach( $data as $key => $value )
{
if( $i % $numRows === 0 ) // Start a new tbody
{
if( $i !== 0 ) // Close prev tbody
{
$extraCells--;
if ($extraCells === 0 )
{
$numRows--; // No more tbody's with an extra cell
$extraCells--; // Avoid re-reducing numRows
}
$output .= '</tbody>';
}
$output .= '<tbody style="float: left;">';
$i = 0; // Reset iterator to 0
}
$output .= '<tr>';
$output .= '<th>'.$key.'</th>';
$output .= '<td>'.$value.'</td>';
$output .= '</tr>';
$cCell++; // increase cells printed count
if($cCell == $numCells){ // last cell, close tbody
$output .= '</tbody>';
}
$i++;
}
$output .= '</table>';
$output .= '</div>';
return $output;
}
I hope that this code will be useful to you all.
I have an array like this:
$tset = "MAIN_TEST_SET";
$gettc = "101";
$getbid = "b12";
$getresultsid = "4587879";
$users["$tset"] = array(
"testcase"=>"$gettc",
"buildid"=>"$getbid",
"resultsid"=>"$getresultsid"
);
Arrays in PHP is confusing me.
I want to display some like this:
MAIN_TEST_SET
101 b12 4587879
102 b13 4546464
103 b14 5545465
MAIN_TEST_SET3
201 n12 45454464
MAIN_TEST_SET4
302 k32 36545445
How to display this?
Thanks.
print_r($users)
That will print your array out recursively in an intuitive way. See the manual: http://us2.php.net/manual/en/function.print-r.php
If you want to print it in the specific way you formatted it above you're going to have to write a custom function that uses foreach looping syntax like this:
<?php
echo "<table>";
foreach($users as $testSetName=>$arrayOfTestCases){
echo "<tr><td>".$testSetName."</td></tr>";
foreach($arrayOfTestCases as $k=>$arrayOfTestCaseFields){
//$arrayOfTestCaseFields should be an array of test case data associated with $testSetName
$i = 0;
foreach($arrayOfTestCaseFields as $fieldName => $fieldValue){
//$fieldValue is a field of a testcase $arrayOfTestCaseFields
if($i == 0){
//inject a blank table cell at the beginning of each test case row.
echo "<tr><td> </td>";
$i++;
}
echo "<td>".$fieldValue."</td>";
}
echo "</tr>";
}
}
echo "</table>";
?>
Your data should be composed as follows:
$tset = "MAIN_TEST_SET";
$gettc = "101";
$getbid = "b12";
$getresultsid = "4587879";
$users[$tset] = array();
$users[$tset][] = array( "testcase"=>"$gettc",
"buildid"=>"$getbid",
"resultsid"=>"$getresultsid"
);
$users[$tset][] = ... and so forth ...
To fix the data structure you present (as Victor Nicollet mentions in his comment) you need something like this:
$users = array(); // Create an empty array for the users? (Maybe testsets is a better name?)
$testset = array(); // Create an empty array for the first testset
// Add the test details to the testset (array_push adds an item (an array containing the results in this case) to the end of the array)
array_push($testset, array("testcase"=>"101", "buildid"=>"b12", "resultsid" => "4587879"));
array_push($testset, array("testcase"=>"102", "buildid"=>"b13", "resultsid" => "4546464"));
// etc
// Add the testset array to the users array with a named key
$users['MAIN_TEST_SET'] = $testset;
// Repeat for the other testsets
$testset = array(); // Create an empty array for the second testset
// etc
Of course there are much more methods of creating your data structure, but this one seems/looks the most clear I can think of.
Use something like this to create a HTML table using the data structure described above.
echo "<table>\n";
foreach($users as $tsetname => $tset)
{
echo '<tr><td colspan="3">'.$tsetname.'</td></tr>\n';
foreach($tset as $test)
echo "<tr><td>".$test['testcase']."</td><td>".$test['buildid']."</td><td>".$test['resultsid']."</td></tr>\n";
}
echo "</table>\n";
The first foreach iterates over your test sets and the second one iterates over the tests in a test set.
For a short uncustomisable output, you can use:
print_r($users)
alternatively, you can use nested loops.
foreach($users as $key => $user) {
echo $key . "<br />"
echo $user["testcase"] . " " . $user["buildid"] . " " . $user["resultsid"];
}
If you are not outputting to html, replace the <br /> with "\n"