PHP - Reverse Array

Hi all,


I have a MySQL table with the field 'number'.
When I SELECT * from that field, I get a return for the rows of 'number' in the order 1, 2, 3, 4, etc...
 

SELECT * FROM products;

Is there a way where I can get a return in the reverse order, so highest to lowest (4, 3, 2, 1, etc...)?
Edited by Phaelon, 13 May 2014 - 03:23 AM.

I posted this on stackoverflow, but no one wanted to touch it.   http://stackoverflow...rse-new-entries   I've tried array_push, but the results remain as SimpleXML, and not a plain array, which I wasn't able to use.  I tried some other things that I can't remember.

$feed_url = 'http://feeds.feedburner.com/SlickdealsnetFP?format=xml';
$contents = file_get_contents($feed_url);
$x = new SimpleXMLElement($contents);

$arrayFPTitle=array();

foreach($x->channel->item as $temp){
	array_push($arrayFPTitle, $temp->title);
}

Have any suggestions?... I've been on this problem for a few hours, now. I even tried regex, but you can imagine I quickly realized I wasn't going to figure that out.
Edited by icor1031, 18 September 2014 - 01:35 AM.

Hello All
New here and could use a bit of help.

Basically I have 2 separate functions that echo their results out in an html page.
My problem is the first function needs a value from the second function after it has run but needs to be echoed before the second for aesthetics.

Here's a bit of code to explain.
Code: [Select]
  <div class="bag"><br/><?php echo writeShoppingCart(); ?> </div>
<div id="contents">
<?php
echo showCart();
?>
</div>
So basically to work correctly I need showCart to finishing before calling writeShoppingCart()
I tried doing a redirect to the same page but it didn't like that.
Is there another way around this that I'm not aware of?
I suppose I could write a third function to get the value I need and call it before but I was hoping for a something a little cleaner.

Cheers

Hi folks...

Trying to get a bit of gallery code to work the way I want it to and would appreciate some feedback from more experienced folks...

What it's doing, or is supposed to be doing, is taking a thumb called 'thumb.jpg' from each folder within my gallery folder and displaying it in reverse order on a page. I only want a maximum number of images to display on the page at any one time, so that if I end up uploading loads of folders in the future, it will only display a set amount of thumbs on one page.

I want the thumbs displayed in reverse order, so that the newest appears first.

Here's the code... and as far as I can see, it should work... and I'm sure I have had it working in the past (I've just come back to working on it after a while) however now, it's putting the thumbs in a random order.

My folders are all in the gallery folder, and are named 001, 002, 003, 004, 005, 006, etc.
I want them to display with 006 at the top and to de-increment, but only for the most recent 16 folders.

Code: [Select]

<?php

$images = "gallery/"; # Location of galleries 
$cols   = 4; # Number of columns to display 
$max     = 16; # Maximum number of galleries to show

if ($handle = opendir($images)) { 
   while (false !== ($file = readdir($handle))) { 
       if ($file != "." && $file != "..") { 
           $files[] = $file; 
       } 
   } 
   closedir($handle); 
} 

$colCtr = 0; 

echo "<div id=\"updates\"><table><tr>"; 

$c = count($files) - 1; //$c = the number of files in the array, minus 1 = highest index in the array.
for($i = $c; $i > ($c - $max); $i--) //$i = $c, $i is greater than the array count minus $max, $i de-increments on each loop.  This will give us a countdown for the number of galleries required.
{ 
  if($colCtr %$cols == 0) 
    echo "</tr><tr>"; 
  echo "<td><img src=\"" . $images . $files[$i] . "/thumb.jpg\" width=\"240px\" height=\"180px\" alt=\"" . $alt . "\" /></td>"; //echo'ing out the $file[$i] on the loop, will give us the last required number of files in the file array.
  $colCtr++; 
} 

echo "</table></div>" . "\r\n"; 

?>


I also want to work out how to set a start number for the galleries, so that I can paginate them... so, once I have 36 galleries (for example) I can have the latest 16 on the first page, and the next 16 on the 2nd page... and the 4 that run over would drift off into obscurity until I get round to deleting them... maybe with a variable named $min... How would I do that...? Like this, or differently? :

Code: [Select]

<?php

$images = "gallery/"; # Location of galleries 
$cols   = 4; # Number of columns to display 
$min     = 16; # Minimum number of galleries to show
$max     = 32; # Maximum number of galleries to show

if ($handle = opendir($images)) { 
   while (false !== ($file = readdir($handle))) { 
       if ($file != "." && $file != "..") { 
           $files[] = $file; 
       } 
   } 
   closedir($handle); 
} 

$colCtr = 0; 

echo "<div id=\"updates\"><table><tr>"; 

$c = count($files) - 1; //$c = the number of files in the array, minus 1 = highest index in the array.
for($i = $c; ($i + $min) > ($c - $max); $i--) //$i = $c, $i plus $min is greater than the array count minus $max, $i de-increments on each loop.  This will give us a countdown for the number of galleries required.
{ 
  if($colCtr %$cols == 0) 
    echo "</tr><tr>"; 
  echo "<td><img src=\"" . $images . $files[$i] . "/thumb.jpg\" width=\"240px\" height=\"180px\" alt=\"" . $alt . "\" /></td>"; //echo'ing out the $file[$i] on the loop, will give us the last required number of files in the file array.
  $colCtr++; 
} 

echo "</table></div>" . "\r\n"; 

?>


Any help greatly appreciated!

This topic has been moved to Miscellaneous.

http://www.phpfreaks.com/forums/index.php?topic=347977.0

Create a data form that should accept odd number of words in a particular sentence Input Example: I am working in retailon. and should display the output as reversing first and last word and second word to fourth word and so on and the middle word should be same and should also display the number of words. Output Example: retailon in working am i. words=5. Input:I am Working in Google. Output:Google in Working am I. Words:5

hi i am trying to make a payroll calculator script that takes employee info, calculates pay, displays submitted info in a table, stores info in an array, and updates the array when new info is submitted. i have most of these accomplished, i am having trouble with the "store into an array, and update the array when new info is submitted" parts of the project. i am still not very fluent in php so there may be easier ways to achieve what i have so far. any pointers would be a great help, this part has got me stumped.

NOTE - Please read the information first as it contains important information to understand the problem.

Rules →

• There are 9 Columns(C1,C2,C3,C4,C5,C6,C7,C8,C9) [ Max columns will be 9]

• The number of Rows can vary from 3,6,9,12,15,18 (Max). In this case Number of Rows shall be 12

Number of Rows = No of Tickets (Max Allowed 6) x Rows Per Ticket (Max Allowed 3). Thus, Max Rows can be 18

• Each Row is required to have 4 Blank Spaces and 5 Filled with Numbers

• All numbers available in the Column Array have to be utilized

• This configuration of an shall create a matrix of 9 Columns & 12 Rows (3 x 4 Tickets), which is 108 MATRIX BLOCKS where only a maximum of 60 numbers can be filled out of 108 available blocksrandomly with the above conditions being met 100%.

• The numbers in column must be arranged / sorted in ASCENDING ORDER (For coding logic purpose, as soon as the number is assigned to the new MATRIX MAP use array_shift() or unset() the number so as to avoid repetition

Example - Row 1 and Column 1 shall generate a MATRIX BLOCK - R1C1

Row 3 and Column 7 shall generate a MATRIX BLOCK - R3C7

Matrix Block can also be termed as Matrix Cell for your ease (if needed)

MASTER SET OF ARRAY WITH NUMBERS

array( "C1"=> array( 1, 2, 3, 5, 6, 7, 9 ), //7 Numbers "C2"=> array( 13, 14, 15, 17, 18, 19 ), //6 Numbers "C3"=> array( 21, 22, 23, 24, 25, 26, 30 ), //7 Numbers "C4"=> array( 31, 33, 34, 36, 37, 38, 39 ), //7 Numbers "C5"=> array( 41, 42, 46, 47, 48, 49, 50 ), //7 Numbers "C6"=> array( 51, 52, 53, 54, 55, 57, 58 ), //7 Numbers "C7"=> array( 61, 62, 64, 65, 69, 70 ), //6 Numbers "C8"=> array( 71, 74, 75, 76, 77, 78 ), //6 Numbers "C9"=> array( 82, 83, 85, 87, 88, 89, 90 ) //7 Numbers );

The above array has 60 Numbers to be filled out of 108 MATRIX BLOCK / CELL which meets the condition that for a FULL BLOCK containing 4 MINI BLOCKS WITH 3 ROWS (max. allowed) EACH

I have been able to generate this without any issue meeting all the conditions of the Columns

My Allocation Matrix Array will look like

array( "R1"=> array( "C1"=> true, // Means that MATRIX BLOCK R1C1 will be NOT EMPTY "C2"=> false, // Means that MATRIX BLOCK R1C2 will be EMPTY "C3"=> true, "C4"=> false, "C5"=> true, "C6"=> false, "C7"=> true, "C8"=> true, "C9"=> false ), "R2"=> array( "C1"=> false, "C2"=> true, "C3"=> false, "C4"=> true, "C5"=> false, "C6"=> true, "C7"=> true, "C8"=> true, "C9"=> false ), "R3"=> array( "C1"=> true, "C2"=> true, "C3"=> true, "C4"=> true, "C5"=> false, "C6"=> false, "C7"=> false, "C8"=> false, "C9"=> true ), "R4"=> array( "C1"=> true, "C2"=> true, "C3"=> true, "C4"=> false, "C5"=> true, "C6"=> true, "C7"=> false, "C8"=> false, "C9"=> false ), "R5"=> array( "C1"=> false, "C2"=> false, "C3"=> false, "C4"=> false, "C5"=> true, "C6"=> true, "C7"=> true, "C8"=> true, "C9"=> true ), "R6"=> array( "C1"=> true, "C2"=> true, "C3"=> false, "C4"=> true, "C5"=> false, "C6"=> true, "C7"=> false, "C8"=> false, "C9"=> true ), "R7"=> array( "C1"=> false, "C2"=> false, "C3"=> true, "C4"=> false, "C5"=> true, "C6"=> false, "C7"=> true, "C8"=> true, "C9"=> true ), "R8"=> array( "C1"=> true, "C2"=> false, "C3"=> false, "C4"=> true, "C5"=> false, "C6"=> false, "C7"=> true, "C8"=> true, "C9"=> true ), "R9"=> array( "C1"=> true, "C2"=> false, "C3"=> true, "C4"=> false, "C5"=> true, "C6"=> true, "C7"=> false, "C8"=> false, "C9"=> true ), "R10"=> array( "C1"=> false, "C2"=> true, "C3"=> true, "C4"=> true, "C5"=> true, "C6"=> false, "C7"=> true, "C8"=> false, "C9"=> false ), "R11"=> array( "C1"=> false, "C2"=> true, "C3"=> false, "C4"=> true, "C5"=> true, "C6"=> true, "C7"=> false, "C8"=> true, "C9"=> false ), "R12"=> array( "C1"=> true, "C2"=> false, "C3"=> true, "C4"=> true, "C5"=> false, "C6"=> true, "C7"=> false, "C8"=> false, "C9"=> true ) );

In the above array R stands for Row, C for Column, TRUE/FALSE (Boolean) means that if TRUE a Number can be filled in the resulting MATRIX BLOCK / CELL ( Row[Number]Column[Number] ) else if FALSE the MATRIX BLOCK / CELL shall be EMPTY

The result for the above shall be

PROBLEM : 

I am unable to understand what should possibly be the logic & loop used here for creating a MATRIX ALLOCATION MAP as shown above

I have tried while, foreach & for but unable determine the perfect combination which would meet the conditions.

(Tried all of the above with Nested Loops also)

Edited May 1, 2020 by AlphaMike
Tags

I am having some problems getting a query correct. Basically I have two tables, one with listings and another with categories. In the listings table I have a column called shortdescription.

I am trying to pull the shortdescription from the listings table with the query

$shortdesc = array_shift(mysql_fetch_row(mysql_query("select shortdescription from links where category = '".$scat->id."' ")));

The shortdecription display properly on the pages display the listings, however I am getting the following error on any pages that only display the parent categories


Warning: array_shift() [function.array-shift]: The argument should be an array in /home/...path/file.php on line 1462

The listings id numbers begin at 75+ because the initial parent category id ends at 74. The query seems to be searching for listing ids below 75 and spitting out an error because it is not finding them.

Any ideas on how to eliminate this error and/or stop the query from looking for non-existant data?

How can i save array from inputs, witch is $igraci and it have 5 values, to mysql base, i tryed but in mysql it shows Array.
This is form:
        <form action="dodaj_klan.php" method="post" >
            <p>
            <label>Naziv klana:</label>
            <input name="naziv" type="text" size="20%" />
            <label>Web Sajt:</label>
            <input name="website" type="text" size="20%" />
            <label>E-Mail:</label>
            <input name="email" type="text" size="20%" />
            <br /><br />
            <label>Igraci klana(5):</label>
            <input name="lider" type="radio" value="1" />
            <input name="igraci[]" type="text" size="20%" /><br />
            <input name="lider" type="radio" value="2" />
            <input name="igraci[]" type="text" size="20%" /><br />
            <input name="lider" type="radio" value="3" />
            <input name="igraci[]" type="text" size="20%" /><br />
            <input name="lider" type="radio" value="4" />
            <input name="igraci[]" type="text" size="20%" /><br />
            <input name="lider" type="radio" value="5" />
            <input name="igraci[]" type="text" size="20%" />
            <label><i>(obelezi lidera klana)</i></label>
            <br /><br />
            <input class="button" type="submit" name="submit" value="Dodaj" />&nbsp;&nbsp;
            </p>
        </form>
Now i wonna save this igraci[] array in mysql, i tried like this but it doesn't work:
$igraci = $_POST['igraci'];
$query = "INSERT INTO klanovi (naziv, website, email, igraci) VALUES ('{$naziv}', '{$website}', '{$email}', '{$igraci}')";
$result = mysql_query($query, $connection);

How can i do this?
Thanks..

Using curl_multi, I have loaded up 3 url's and then printed the array.

1) How can I also set a timestamp on output to let me know when each url was run?

2) How can I explode the array to only display the data and timestamp, excluding the text "Array ( =>", "[1] =>", "[2] =>" and " )"? Code

<?php

function multiRequest($data, $options = array()) {

  // array of curl handles
  $curly = array();
  // data to be returned
  $result = array();

  // multi handle
  $mh = curl_multi_init();

  // loop through $data and create curl handles
  // then add them to the multi-handle
  foreach ($data as $id => $d) {

    $curly[$id] = curl_init();

    $url = (is_array($d) && !empty($d['url'])) ? $d['url'] : $d;
    curl_setopt($curly[$id], CURLOPT_URL,            $url);
    curl_setopt($curly[$id], CURLOPT_HEADER,         0);
    curl_setopt($curly[$id], CURLOPT_RETURNTRANSFER, 1);

    // post?
    if (is_array($d)) {
      if (!empty($d['post'])) {
        curl_setopt($curly[$id], CURLOPT_POST,       1);
        curl_setopt($curly[$id], CURLOPT_POSTFIELDS, $d['post']);
      }
    }

    // extra options?
    if (!empty($options)) {
      curl_setopt_array($curly[$id], $options);
    }

    curl_multi_add_handle($mh, $curly[$id]);
  }

  // execute the handles
  $running = null;
  do {
    curl_multi_exec($mh, $running);
  } while($running > 0);

  // get content and remove handles
  foreach($curly as $id => $c) {
    $result[$id] = curl_multi_getcontent($c);
    curl_multi_remove_handle($mh, $c);
  }

  // all done
  curl_multi_close($mh);

  return $result;
}



$data = array(array(),array());

$data[0]['url']  = 'http://search.yahooapis.com/VideoSearchService/V1/videoSearch?appid=YahooDemo&query=Pearl+Jam&output=json';
$data[1]['url']  = 'http://search.yahooapis.com/VideoSearchService/V1/videoSearch?appid=YahooDemo&query=Black+Eyed+Peas&output=json';
$data[2]['url']  = 'http://search.yahooapis.com/VideoSearchService/V1/videoSearch?appid=YahooDemo&query=Nirvana&output=json';

$r = multiRequest($data);

print_r($r);

?>

Output

Array ( => Pearl Jam [1] => Black Eyed Peas
        [2] => Nirvana )

Preferred Output

01:00:01 Pearl Jam
01:00:02 Black Eyed Peas
01:00:03 Nirvana

This topic has been moved to PHP Applications.

http://www.phpfreaks.com/forums/index.php?topic=344127.0

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.

So I'm trying to create an Array from a comma separated string containing array{s}. How can I take a string full of comma separated hex values such as : 

<?php
    $myStr = (
        "00ffff", "00cccc", "009999", 
        "007777", "004444", "001111", 
        "01ffff", "01cccc", "019999"
    );
?>

& turn it into 3 separated arrays like : 

<?php
    $myNewArrs = [
        Array1 ( 3 ), 
        Array2 ( 3 ), 
        Array3 ( 3 ), 
    ];
?>

which REALLY looks like : 

<?php
    $myNewArrs = [
        Array ( "00ffff", "00cccc", "009999" ), 
        Array ( "007777", "004444", "001111" ), 
        Array ( "01ffff", "01cccc", "019999" ), 
    ];
?>

?

Any assistance is most-definitely appreciated!

Thank you & have a great afternoon!

 

 

Edited May 27 by AquariaXI

I need a help in the following :
I have an admin page from where the admin attaches an gif image.This attached image should be shown to the user as a scrolling image.
The code for the scrolling image is done through javascript.
So my actual problem is getting the name of the attached gif image to the javascript array which is used for scrolling horizontally.