I got a foreach which loops through my database for each user.
<?php
foreach($users as $user) {
?>
<tr>
<td>
<?php
for ($i=1; $i < 52; $i++) {
echo $i;
}
?>
</td>
<td>
<?php echo $user['firstname']; ?>
</td>
</tr>
<?php
}
?>
This loop through database and echos the username, now I tried to build a for loop inside this so that every user has a number, I took as an example a very basic for loop ( it will be changed later).
The problem is that I get all numbers printed out for each user, but I just want to print out the number once for a user. How do I solve this.
If you want unique index number for user, you do not need extra loop.
Just add an increment variable:
And increment it in existing loop.
<?php
$i=0;
foreach($users as $user) {
++$i; // For printing first user, it will be 1 not 0.
// Therefore, increment is placed before printing name.
?>
<tr>
<td><?php echo $i;?></td>
<td><?php echo $user['firstname']; ?></td>
</tr>
<?php
}
?>
This should be enough to achieve what you're trying to do :
Your for() isn't needed since foreach() already create a loop, you just have to use this loop to increment a value (here called $i) then display it.
Also you should avoid to open your php tags ten thousands times for a better visibility into your code :)
<?php
$i = 0;
foreach($users as $user) {
$i++;
echo'<tr>
<td>'.$i.'</td>
<td>'.$user['firstname'].'</td>
</tr>';
?>
<?php
$i=1;
foreach($users as $user) {
?>
<tr>
<td>
<?php
echo $i++;
?>
</td>
<td>
<?php echo $user['firstname']; ?>
</td>
</tr>
<?php
}
?>
Try to use the key in foreach
<?php foreach ($users as $key => $user) : ?>
<tr>
<td><?php echo $key; ?></td>
<td><?php echo $user['firstname']; ?></td>
</tr>
<?php endforeach; ?>
Related
I am learning to work with Json at the moment, I have figured out how to display data for Name and Craft in space in the moment.
I cannot figure out how to display number of people.
Is not correct, I am receiving error
foreach ($json_data['number'] as $key => $value) {
echo $value;
}
Also does not work
foreach($json_data as $key=>$value)
{
echo $key['number'];
}
// Read JSON file
$json = file_get_contents('http://api.open-notify.org/astros.json');
//Decode JSON
$json_data = json_decode($json,true);
HTML
<table>
<tr>
<th>Name</th>
<th>Craft</th>
</tr>
<?php foreach($json_data['people'] as $key=>$value): ?>
<tr>
<td><?php echo $value['name']; ?></td>
<td><?php echo $value['craft']; ?></td>
</tr>
<?php endforeach; ?>
</table>
I want to display number of people in the space by using foreach loop
Change your code to
<?php
// Read JSON file
$json = file_get_contents('http://api.open-notify.org/astros.json');
//Decode JSON
$json_data = json_decode($json,true);
$peopleCount = 0;
?>
<table>
<tr>
<th>Name</th>
<th>Craft</th>
</tr>
<?php foreach($json_data['people'] as $key=>$value):
$peopleCount++;
?>
<tr>
<td><?php echo $value['name']; ?></td>
<td><?php echo $value['craft']; ?></td>
</tr>
<?php endforeach; ?>
</table>
<?php
echo "Total People count: ". $peopleCount;
explanation:
$peopleCount variable is holding the number of people.
At first, its values is 0.
When iterating over the array the $peopleCount's value is incrementing by 1 ($peopleCount++; is equal to $peopleCount = $peopleCount +1;)
PS:
Your code had missing PHP closing tag at line number 8. I fixed it.
foreach is used to loop through an array. In your JSON output number is not returned as an array, so you do not need to use foreach loop for displaying number. You can just display the Number using following code:
<?php echo $json_data['number']; ?>
I have a number of rows (ingredients) in a table in my database, I'm using the following code to iterate and populate my view with the name of each, but I want to be able to display the children/parents (columns in the DB) of each item, I'm able to log out the values correctly but when I try to echo as below I'm receiving "Message: Undefined index: parents" & "Message: Undefined index: children";
<?php foreach ($ingredient as $row => $key) { ?>
<tr>
<td><?php echo $row + 1; ?> </td>
<td><?php echo $key['name']; ?> </td>
<?php ChromePhp::log($key['parents']); ?>
<td><?php echo $key['parents']; ?> </td>
<?php ChromePhp::log($key['children']); ?>
<td><?php echo $key['children']; ?> </td>
<td>
</tr>
<?php } ?>
I'm confused as I have no issue logging it out.
I assumed it may be due to null values so I assigned child/parent a string value for each row as follows;
but the error persists.
Here is the logged output in the browser;
Output of <?php ChromePhp::log($key); ?>
EDIT: Here is how I'm building the $ingredients array;
<?php
function get_ingredient()
{
$qry = "SELECT CONCAT(UPPER(LEFT(i.name, 1)), LCASE(SUBSTRING(`name`, 2))) as name,i.id as id,'ingredient' as type, i.parents as parents, i.children as children FROM `ingredient` i WHERE i.is_del=0 order by i.name asc";
$qry = $this->db->query($qry);
if ($qry->num_rows() > 0) {
$ingr = $qry->result_array();
} else {
$ingr = array();
}
}
?>
I assume I'm missing something fundamental, any advise would be most appreciated. Cheers.
My array had two sets of data, I have resolved this by limiting the array to one set.
<?php foreach ($ingredient as $row => $key) { ?>
<tr>
<td><?php echo $row + 1; ?> </td>
<?php if(isset($key['name']) && !empty($key['name'])):?>
<td><?php echo $key['name']; ?> </td>
<?php endif;?>
<?php if(isset($key['parents']) && !empty($key['parents'])):?>
<?php ChromePhp::log($key['parents']); ?>
<td><?php echo $key['parents']; ?> </td>
<?php endif;?>
<?php if(isset($key['children']) && !empty($key['children'])):?>
<?php ChromePhp::log($key['children']); ?>
<td><?php echo $key['children']; ?> </td>
<?php endif;?>
</tr>
$key looks like an object so you have to access it with -> so to get value of name use $key->name,$key->parents
I am trying to populate html table with data from mysql.But i am stuck on this part where each time i add some data it keeps repeating. On the picture below you can see that Test 1 repeat each time for every P20,P21,P24,P22,P23 and i needed to be one TEST1 for all of them. When i add Test 2 with value 19000 its making new P20 and all data come from Test 1 to Test 2. Can someone help me how to fix this.Any hint or suggestion wil be appreciated. Thank you all very much (Sorry for my bad english)
This is code that runs this
$sql = 'SELECT DISTINCT Pers.naam, Rol.funkcija,pdata.broj
FROM ids
left JOIN Pers ON ids.persid = Pers.id
left JOIN Rol ON ids.rolid = Rol.id
left JOIN pdata ON ids.pdataid = pdata.id
';
$query = $conn->prepare($sql);
$query->execute();
$testing = $query->fetchAll(PDO::FETCH_ASSOC);
?>
<table>
<tr>
<th>P Small <small>(NONE)</small></th>
<?php
foreach ($testing as $test):
?>
<th>
<?php
echo $test['naam'] . '<br />';
?>
</th>
<?php
endforeach;
?>
</tr>
<tr>
<th>TESTING LINES</th>
</tr>
<?php foreach ($testing as $test): ?>
<tr>
<td><?php echo $test['funkcija']; ?></td>
<?php endforeach; ?>
<?php
foreach ($testing as $test):
?>
<td><?php echo $test['broj']; ?></td>
<?php
endforeach;
?>
</tr>
</table>
I would like to have it like this
There is some refactoring required to get to the output you want.
You seem to be enumerating quite a lot of data from your SQL result, so there is some grouping required to make things easier.
To get the appropriate number to each "naam" and "funkcija" you can use array_filter which however could theoretically return several numbers in each case.
You'll also have to nest a couple foreach instead of running them after one another.
If I understand your data structure correctly, this should at least give you a good starting point for the output you want:
<?php
// ...
$testing = $query->fetchAll(PDO::FETCH_ASSOC);
$naams = array_unique(array_column($testing, "naam"));
$funkcijas = array_unique(array_column($testing, "funkcija"));
?>
<table>
<tr>
<th>P Small <small>(NONE)</small></th>
<?php foreach ($naams as $naam): ?>
<th>
<?php echo $naam; ?>
</th>
<?php endforeach; ?>
</tr>
<tr>
<th>TESTING LINES</th>
</tr>
<?php foreach ($funkcijas as $funkcija): ?>
<tr>
<td><?php echo $funkcija; ?></td>
<?php foreach ($naams as $naam): ?>
<?php
$data = array_filter(
$testing,
function ($v) use ($naam, $funkcija)
{
return $v["naam"] === $naam && $v["funkcija"] === $funkcija;
}
);
foreach ($data as $value): ?>
<td><?php echo $value["broj"]; ?></td>
<?php endforeach; ?>
<?php endforeach; ?>
</tr>
<?php endforeach; ?>
</table>
Why doesn't my `$total' display any value when I run the code?
Initialize out side of the while loop
<?php
$total=0;
while ($row = ...
AND compute the $total as a running total inside ?PHP tag the echo it outside the loop to display the accumulated total
$total = $total + $row['price1'] + $row['price1'];
Try this,
<?php
$total=0;
while($row = mysqli_fetch_array($result)) {
?>
<tr>
<td><?php echo $row["bookname"]; ?> </td>
<td><?php echo $row["price1"]; ?> </td>
<td><?php echo $row["cdname"]; ?> </td>
<td><?php echo $row["price2"]; ?> </td>
<td><?php echo $row["total"]; ?> </td>
</tr>
<?php $total = $total + $row['price1'] + $row['price2']; } ?>
Remember : $row['price1'] and $row['price2'] always be an integer values.
first you may want to put your total inside a php block then echo it
Initialize $total before the while loop. And after computation echo it outside the while loop.
Here's the code from my
Controller Page
public function table1(){
$this->load->model('test_model');
$data['value']= $this->test_model->getAlltable1();
$data['value2']= $this->test_model->getAlltable0();
$this->load->view('table1', $data);
}
Views Page
<table class="table">
<tbody>
<?php foreach ($value as $v){ ?>
<?php foreach ($value2 as $v2){ ?> //different table
<tr>
<td><?php echo $v->tech_voc?></td>
<td><?php echo ($v->tech_voc*$v2->tech_voc)?></td>
</tr>
<?php } ?>
<?php } ?>
The output is somewhat like this
1 .75
1 .75
1 .75
1 .75
What I want to display is something like this
1 .75
What happen here is that, instead it multiply once, it all multiply each row. And I think it is because I put foreach inside a foreach Please help me.
EDIT
Oh yeah, I already tried deleting the foreach value2
but it says v2 is undefined variable
HOPE it helps.
NEW EDIT:---------------------------------------
If you're trying to multiply where the keys are the same ($value[0]*$value2[0], $value[1]*$value2[1], etc) try this.
<?php
$col1_sum = 0;
$col2_sum = 0;
foreach ($value as $k => $v){ ?>
<tr>
<td><?php echo $v->tech_voc?></td>
<td><?php echo ($v->tech_voc*$value2[$k]->tech_voc)?></td>
<?php //update sums
$col1_sum += $v->tech_voc;
$col2_sum += ($v->tech_voc*$value2[$k]->tech_voc);
?>
</tr>
<?php } ?>
<!-- row with sums -->
<tr>
<td><?php echo $col1_sum?></td>
<td><?php echo $col2_sum?></td>
</tr>
Edited based on comments/chat to include a sum row.