Error PHP end of while using PDO Wrapper

Error PHP end of while using PDO Wrapper - php

Hope can help.
Using php-pdo-wrapper-class I am trying to do 'while' to put results in table.
So far:
$preNic = $db->select('g1_pimps', 'id > 0', 'id, nick, STATUS', '50');
$i=0;
while ($preNic[$i])
{
echo $preNic[$i]['nick'].' - '.$preNic[$i]['id'].'<br />';
$i++;
}
$preNic gives this array
Array
(
[0] => Array
(
[id] => 2
[nick] => PimpNo_2
)
[1] => Array
(
[id] => 3
[nick] => PimpNo_3
)
[2] => Array
(
[id] => 4
[nick] => PimpNo_4
)
etc
)
Now it works but:
a. Is it right way?
b. It gives error notice at end.

Instead of using a while loop use a foreach:
foreach($preNic as $row){
echo $row['nick'].' - '.$row['id'].'<br />';
}
Foreach's are Pimp, Hope it helps

Related

Replace the array values with html image tag in php

I have here an array below:
<?php
print_r( $result );
?>
If I am going to execute the code above, it resulted below:
Array
(
[0] => Array
(
[id] => 1
[uploaded_by] => 1
[image_url] => http://localhost/dir/img_2.jpg
[work_description] => test
[date_added] => 2017-08-03 02:12:38
)
[1] => Array
(
[id] => 2
[uploaded_by] => 1
[image_url] => http://localhost/dir/img_4.jpg
[work_description] => test
[date_added] => 2017-08-03 02:13:04
)
[2] => Array
(
[id] => 3
[uploaded_by] => 1
[image_url] => http://localhost/dir/img_2.jpg
[work_description] => test
[date_added] => 2017-08-03 02:46:28
)
[3] => Array
(
[id] => 4
[uploaded_by] => 1
[image_url] => http://localhost/dir/img_2.jpg
[work_description] => sdfsdf
[date_added] => 2017-08-03 02:46:34
)
)
Now, from the $result array I wanted to change the values of all image_url
programmatically using php into an image in html.
example:
http://localhost/dir/img_2.jpg will become
<img src="http://localhost/dir/img_2.jpg"/>
Those values must be changed if I am going to execute the code.
Does anybody know?

You can put it in a foreach and modify only the part what you want:
foreach($result as $key => $value) {
$result[$key]['image_url'] = '<img src="'.$value['image_url'].'"/>';
}
print_r($result);

You can use a compact syntax and modify the subarray elements by reference:
Code: (Demo)
foreach ($result as &$subarray) { // & means modify by reference, so you are overwriting the input array, not traversing a copy.
$subarray['image_url'] = "<img src=\"{$subarray['image_url']}\"/>";
}
var_export($result);
There is no need to declare $key because the foreach is traversing the actual input array, not a copy of the input array. The image_urls are simply overwritten with each iteration.

PHP Nested foreach with Key

Assuming this is one big array and its called $data you can nest a couple of foreach loops.
I use foreach loops as I assume there are cases where this data structure get more complex than the one you show
foreach ( $data['Itineraries'] as $itin ) {
foreach ( $data['Legs'] as $legs) {
if ($legs['Id'] == $itin['OutboundLegId']) {
// we matched the itinerary with a leg
echo $legs['OutboundLegId'] . ' ' . $legs['FlightNumbers'][0]['FlightNumber'];
}
}
}

Use it as draft. Can't perform function without feedback.
Put proper arrays instead of {YOUR-ARRAY-WITH-LEGS} and {YOUR-ARRAY-WITH-ITINERARIES}
$sortedLegs = array_column('Id', {YOUR-ARRAY-WITH-LEGS});
$joinedArray = array_map(function($itinerary) use($sortedLegs){
if(array_key_exists($itinerary['OutboundLegId'],$sortedLegs)) {
$itinerary['legs'] = $sortedLegs[$itinerary['OutboundLegId']];
}
return $itinerary;
},{YOUR-ARRAY-WITH-ITINERARIES});

echo a multidimensional array into multiple html table rows

I have a query that I'm running and it will output an unknown number of results. I want to display these results in a table of 5 columns. So I need the array print until the sixth result and then start a new row.
The way I tried to do it was to take the original array and chunk it into blocks of 5.
$display=array_chunk($row_Classrooms,5);
which gives me an array like this.
Array (
[0] => Array (
[0] => Array (
[id_room] => 1
[Name] => Classroom 1
[class] => Yes
)
[1] => Array (
[id_room] => 5
[Name] => Classroom 2
[class] => Yes
)
[2] => Array (
[id_room] => 6
[Name] => Classroom 3
[class] => Yes
)
[3] => Array (
[id_room] => 7
[Name] => Classroom 4
[class] => Yes
)
[4] => Array (
[id_room] => 8
[Name] => Classroom 5
[class] => Yes
)
)
[1] => Array (
[0] => Array (
[id_room] => 9
[Name] => Classroom 6
[class] => Yes
)
)
)
I'm then trying to echo this out with a pair of while loops, like such.
while ($rows = $display) {
echo '<tr>';
while ($class = $rows) {
echo'<td>'.$class['name'].'<br>
<input name="check'.$i.' type="checkbox" value="'.$class['id_room'].'></td>';
$i++;
}
echo '</tr>';
}
When I run this it apparently gets stuck in a never ending loop because nothing gets displayed but the browser just keeps chewing up more and more memory :)

The while statements are wrong. Have a look at here - in your while-statement you are always assigning the complete $display - not one entry.
You could try using while(($rows = array_shift($display)) !== false) - that will always get the first array item until there are no more items.
The same case in the second while-statement.

I ended up replacing the while loops with foreach loops instead which solved the issue.
foreach ($display as $rows) {
echo '<tr class="popup">';
foreach($rows as $class) {
if(isset($row_Rego)){
$exist=NULL;
$exist=array_search($class['id_room'], array_column($row_Rego, 'id_room'));
}

Ordering Array by value

I'm pulling in a list of my vimeo albums using the Vimeo API and the looping three times through the array to get to the albums. It works fine.
My question is, I'm isolating the date, so how can I create a new array and sort it by the date?
While where at it, is there a way to jump to the third level of a multi-dimensional array?
$albums=$vimeo->call('vimeo.albums.getAll', array('user_id' => $myUserId));
$albums_array=object_2_array($albums);
foreach($albums_array as $album_array_two){
foreach($album_array_two as $album_array_three){
foreach($album_array_threeas $album){
if(stristr($album['title'],'conference')){
$title=$album['title'];
$description=$album['description'];
$date=stristr($album['description'],'.',true);
$year_comma=stristr($date,',');
$year=ereg_replace("[^0-9]", "", $year_comma);
$url_title='http://www.psfk.com/events/'.str_replace( " ", "-", strtolower($title));
$url=''.$title.'';
$thumb=$album['thumbnail_video']['thumbnails']['thumbnail'][1]['_content'];
echo '<li class="album">';
echo '<img src="'.$thumb.'" alt="'.$title.'" />';
echo '<div class="info">';
echo '<h2>'.$url.'</h2>';
echo $description.'<br />';
echo 'View...';
echo '</div></li>';
}
}
}
}
Sample of the array returning one item:
Array (
[generated_in] => 0.0828
[stat] => ok
[albums] => Array (
[on_this_page] => 7
[page] => 1
[perpage] => 50
[total] => 7
[album] => Array (
[0] => Array (
[id] => 1690236
[title] => Interviews
[description] =>
[created_on] => 2011-09-10 21:43:49
[total_videos] => 1
[url] => Array (
[0] => http://vimeo.com/album/1690236
)
[video_sort_method] =>
[thumbnail_video] => Array (
[id] => 28825158
[owner] => 718882
[title] => Where Inspiration Comes From [thumbnails] => Array (
[thumbnail] => Array (
[0] => Array (
[height] => 75
[width] => 100
[_content] => http://b.vimeocdn.com/ts/192/593/192593029_100.jpg
)
)
)
)
)
)
)
)

In order to sort by date, you can use the php_function array_multisort(). There is a good example on that page that I think shows what you need. I'll try to provide a better example using your data. Suppose after looping through your albums you end up with an array $myAlbums that looks like this:
Array (
[0] => Array(
[title] => My Title
[description] => some description
[date] 01-05-2011
)
[1] => Array(
.......
)
In order to sort this by date, you could do the following (taken from the example on the php page)
<?php
// Obtain a list of columns
foreach ($myAlbums as $key => $row) {
$date[$key] = $row['date'];
}
// Sort the data with volume descending, edition ascending
// Add $myAlbums as the last parameter, to sort by the common key
array_multisort($date, SORT_DESC, $myAlbums);
?>
Then you can print_r($myAlbums); and you should see that it is sorted. You might have to change the SORT_DESC flag depending on what formate your dates are in. I can't really explain HOW this works, because I'm still trying to figure it out myself... but I think it is what you need.

Cannot print data into "view"

I have a page that I would like to show the data from the database.
I can print_r($sale) and it shows the data that I am after - $sale is set in the controller but I cannot seem to do <?php $sale['name'] ?> it shows nothing.
Print_r:
Array ( [0] => stdClass Object ( [id] => 48 [name] => Jess McKenzie [location] => Auckland [bedrooms] => 5 [bathrooms] => 1 [condition] => Fair [description] =>
hii
[price] => 30.00000 [imagename] => purple.jpg [thumbname] => purple_thumb.jpg ) [1] => stdClass Object ( [id] => 49 [name] => jzmwebdevelopment [location] => Auckland [bedrooms] => 15 [bathrooms] => 4 [condition] => OK [description] =>
zebra
[price] => 25.00000 [imagename] => Zebra.jpg [thumbname] => Zebra_thumb.jpg ) )
Model:
function getSalesContent($id = NULL) {
$this->db->where('id', $id);
$query = $this->db->get('sales', 1);
if($query->num_rows() > 0) {
$row = $query->result_array();
return $row;
}else{
return FALSE;
} # End IF
} # End getSalesContent

It's returning an array of objects.
To show the first element returned you would use
$sale[0]->name;
To cycle through all of the values you could use a foreach loop
foreach($sale as $s){
print $s->name;
}

$query->result_array() returns an array of arrays, you would use $sale['name'] in a foreach loop.
$query->result() returns an array of stdclass objects, you would use $sale->name in a foreach loop.
I cannot seem to do $sale->name it
shows nothing.
Open your index.php file and add error_reporting(E_ALL) to the top. If you were error reporting you'd be able to see your mistakes with helpful error messages telling you exactly what went wrong. Just set it to 0 for when you go live.
I have tried <?php $sale['name'] ?> and get nothing
You need an echo statement: <?php echo $sale['name'] ?>
If $sale is the output you posted, <?php echo $sale[0]->name ?> should print Jess McKenzie

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Error PHP end of while using PDO Wrapper - php

Instead of using a while loop use a foreach: foreach($preNic as $row){ echo $row['nick'].' - '.$row['id'].'<br />'; } Foreach's are Pimp, Hope it helps

Related

Replace the array values with html image tag in php

PHP Nested foreach with Key

echo a multidimensional array into multiple html table rows

Ordering Array by value

Cannot print data into "view"

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