PHP - Remove Element From Current Position In Array

Example: i have an array of names
array{
=> john [1] = ted
[2] = jeff
}

and i display them like this:

john, ted, jeff

but jeff is currently logged in so i want his name to display first(i have my reasons lol)

how would i go about this?
i got as far as:


if(in_array($user->user_name, $likes))
            {
                $user_key = array_search($user->user_name, $likes);
            }


then hit a brain freeze.

Thanks

Hey all..

I'm trying to pick up PHP by reading ebooks and follow tutorials. I am now busy with creating a thumbnailgallery from uploaded pics per user.
I want to let the visitor scroll through a row of thumbnails by clicking next or previous.
There are 3 different rows of thumbnails.
Here's how it looks like:

<<previous (row1 of 6thumbnails) next>>

<<previous (row2 of 6thumbnails) next>>

<<previous (row3.....                  )  next>>

when page loads mysql fetches rows of information for the filenames...then there is a foreach row loop that does first a do ..while loop to build up the thumbnailrows...and then creates the navigation links previous  and next who send the "page"+1 or "page"-1 to _GET array so that the thumbnail 7 until 12 will be shown.

The problem i run into is that i want the main code page to remember at which "page" of scrolling through the thumnails he is. Now it is that when a user scrolls one row of thumbnails and stops at the 3rd "page" of it and then clicks on a different row to go to "page" 2 of that row that all the rows jump together back to "page" 1.

I thought there may be a solution in storing the number of row and the number of page into an array but can't seem to find a solution....

Has anybody got experience in this?
Help would be very welcome i'm totally stuck and cant read about it in tutorials/ebooks....
greets from holland..

GJ

I am trying to write a dirty script that removes duplicate rows from a multidimensional array.

I want to be able to edit the function and spit the duplicates out to a CSV file.

Here is my test file:


$fullArray = array(array('Jim', 'Jones'),
array('Pete', 'Pumpkin'),
array('Barak', 'Obama'),
array('Jason', 'Newstead'),
array('Toby', 'Keith'),
array('Jim', 'Jones'),
array('Jim', 'Nelson'));


echo "<h1>Original</h2>";
for($i=0; $i<count($fullArray); $i++) {
echo $fullArray[$i][0] . " " . $fullArray[$i][1] . "<br />";
}

echo "<h2>Checked</h2>";
$cleanArray = array();
$cay = array();
$nn=0;
$dup=0;
// Loop the entire input array
foreach ($fullArray as $index => $item) {
echo "foreach index:$index<br>";

        // Start an internal pointer
for ($f=0; $f<count($fullArray); $f++) {
echo "for $f ";
                // if the index is lower or the same as the pointer, skip it to cut down on time
if ($f > $index) {
                        // if the rows are the same...
if($fullArray[$f][0] == $item[0] && $fullArray[$f][1] == $item[1]) {
echo "$item[0] DUP<br>";
                                // remove it from the array
$cay = array_push($cleanArray, array($item[0], $item[1]));
array_pop($fullArray[5]);

$dup++;
} else {
                                // not a duplicate
echo " not a dup<br>";
}

} else {
echo "ON THIS ONE<br>";
}
}
echo "<br><br>";
}
echo"<br>$dup duplicates found<br><br>";
print_r($fullArray);
echo "<br /><br>";
// print_r($item);
print_r($cleanArray);
?>


When I spit out the new fullArray variable, it still has an element from the duplicate record.

This is what I get for the output of the full array after the duplicate was removed:
Quote

Array ( => Array ( => Jim [1] => Jones ) [1] => Array ( => Pete [1] => Pumpkin ) [2] => Array ( => Barak [1] => Obama ) [3] => Array ( => Jason [1] => Newstead ) [4] => Array ( => Toby [1] => Keith ) [5] => Array ( => Jim )[/b] [6] => Array ( => Jim [1] => Nelson ) )

guys please help,

i have an array(52,51,52)
here i want to insert first & last elements into DB, not  second one does not follows the series

another array (52,52,53)
in this case insert first 2 elements into DB since last element does not follow the series.

how is this possible?

Just a quick one, new area for me.

I have an array which is looped against another array, if the two values from each ever match then an event occurs, if not then something else.

If a match does occur i then want to remove the said value from one of the arrays... is this really all i need to do, seems too simple:

unset($saved_dont_use[$j]);

I can't for the life of me understand how to perform this so I need some professional help here.

I have a large array that contains some garbage every Nth and Nth + 1 element that needs to go away. array_filter doesn't work with keys but anyhow, i wouldn't know how to design the function.

My keys are numeric, starting from 0. The keys I want to remove are part of this sequence: 8, 9, 18, 19, 28, 29 ...

Can someone help me design a generic function to remove these keys?

function filter_keys($array, $n, $offset) {}

$new_array = filter_keys($array, 10, 8 );

I would maybe have to run this function twice, once for 8 offset and once for 9 offset.

Hello guys,

need some help.


Let us say i have an array =

2011 ipad
2011 ipad review
2011 ipad price
2011 ipad design
2011 ipad reviews
review 2011 ipad
2011 ipad feature


I would like to review all the array elements that contain "review"...So the final array should look like

2011 ipad
2011 ipad price
2011 ipad design
2011 ipad feature

Thanks

So, I am making a system that shows if there are new posts or not. How I have it done is a singular array called "Read" will have all of the IDs of the read posts.

It is entered in the database like so:
$ID2= $_SESSION['UserID'];
$ID2 = mysql_real_escape_string($ID2);
$Readornot=mysql_query("SELECT * FROM forum_read WHERE Reader_ID='$ID2'");
$Readornot2=mysql_fetch_array($Readornot);
if($ID2==0)
{
}
else
{
if(empty($Readornot2))
{
$Read1= array("Read" => $Get_TopicID);
$Read2 = implode('-',$Read1);
mysql_query("INSERT INTO forum_read (Reader_ID,`Read`) values ('$ID2','$Read2')") or die(mysql_error());
}
else
{
$cr_topicid=$Readornot2['Read'];
if(strpos($cr_topicid,'-'))
{
$cr_topicid=explode('-',$cr_topicid);
if(!in_array($Get_TopicID,$cr_topicid,true))
{
$Read0=implode('-',$cr_topicid);
$Read1= array("Read" => $Read0, $Get_TopicID);
$Read2= implode('-',$Read1);
mysql_query("UPDATE forum_read SET`Read`='$Read2' WHERE Reader_ID='$ID2'") or die(mysql_error());
}
}
else
{
if($cr_topicid==$Get_TopicID)
{
}
else
{ 
$Read1= array("Read" => $cr_topicid, $Get_TopicID);
$Read2= implode('-',$Read1);
mysql_query("UPDATE forum_read SET`Read`='$Read2' WHERE Reader_ID='$ID2'") or die(mysql_error());
}
}
}
}

It all works fine and dandy to the point where if it's in the database an icon will be black and white, and if its not it wont, signifying read or unread.

What I need to do, however, is make it so when there is a new post, it takes all of the entries in the database with the topic ID out of the database, and strips the one part.

What I thought of at first was to use str_replace to replace
"-" . $TopicID . "-"
with
"-"

But of course, that won't work, because the very first entry could be  the topic ID, so it would just be $TopicID- and not -$TopicID- in the database.

So, how would I go about doing this?

Is there a built in function to remove empty array values for example:

change

Array (
    [0] => Bob
    [1] =>
    [2] => Ryan
    [3] => Jane
)

to

Array (
    [0] => Bob
    [1] => Ryan
    [2] => Jane
)


Thanks

Hi,

I have an array filled with values like this:

Code: [Select]
string(1) "Acer 1"
string(2) "Acer 2"
string(3) "Dell 1"
string(4) "Dell 2"
string(5) "Dell 3"
string(6) "Dell 4"
string(7) "Acer 3"
string(8) "Acer 4"
Is there a way to successfully remove all array strings that starts with a given value like "Acer"?

I tried with this snippet, does not work:

Code: [Select]
foreach($array as &$value) {

  if(preg_match("/^Acer/", $value)) {
  unset($value);
} }

Any ideas will be appreciated!

Hi guys!

i got this code:
Code: [Select]
<?
$x = "abcde";

str_split($x);
for ($k=0; $k<=119; $k++){
$ax = array($x[0],$x[1],$x[2],$x[3],$x[4]);
shuffle($ax);
    $text = implode("", $ax) . "";
echo $text;
echo "<br />";
}
?>
if you test it you see that it is working but giving me allot of duplicates results!

there is a way to ignore duplicaes while it is runing?

thanx.

Hello I have a while loop which outputs countrys from the database (im making a "filter by" function). For example, the loop outputs:


Denmark
Belgium
Holland
Brazil
Japan
Brazil
Denmark


I want to sort these alphabetically and then remove duplicates... Can somebody explain to me how? I don't know how to get them into an array to do it...

Hello. I am editing a plugin that is grabbing a multidimensional array, then breaking it out into a foreach statement and doing stuff with the resulting data.

What I am trying to do is edit the array before it gets to the foreach statement. I want to look and see if there is a key/value combination that exists, and if it does remove that entire subarray, then reform the array and pass it to a new variable.

The current variable Code: [Select]
$arrSlides returns several subarrays that look like something like this (I remove unimportant variables for the sake of brevity):

Code: [Select]
Array (
[0] => Array (
[slide_active] => 1
)
[1] => Array (
[slide_active] => 0
)
)
What I want to do is look and see if one of these subarrays contains the key slide_active with a value of 0. If it contains a value of zero, I want to dump the whole subarray altogether, then reform the multidimensional array back into the variable Code: [Select]
$arrSlides.

I have tried a few array functions but have not had any luck. Any suggestions?

Thanks in advance,
Jason

When I remove 1 session item using this it works fine when I select more than 1 item to be removed I get unexpected results, I have checked the outputted html to see what positions get echoed into the remove check box and they are correct, so I guess the problem lies in my remove code

here is the part of the form that sends the remove check box

<?php 
for ($basket_counter=0;$basket_counter<$_SESSION['ses_basket_items'];$basket_counter++) {
   $price=sprintf("%01.2f",$ses_basket_price[$basket_counter]);
    $quantity=$ses_basket_amount[$basket_counter];
$code=$ses_basket_stockcode[$basket_counter];
$itemID=$ses_basket_id[$basket_counter];
    $name=$ses_basket_name[$basket_counter];
$image=$ses_basket_image[$basket_counter];
$size=$ses_basket_size[$basket_counter];
$sizechoice=$ses_basket_sizechoice[$basket_counter];
// create array from sizes and make the option box selections
if ($sizechoice!="" && (!in_array($sizechoice, array('One Size', 'one size', 'free size', 'Free Size', 'Adjustable', 'adjustable')))) { 
// add size trigger
$sizelist="add";
//create the array
$sizepick=explode(",", $sizechoice);
} else { $sizepick=$sizechoice; }
// adjust gst for AU customers
if ($country=='AU') { $price=sprintf("%01.2f",($price*1.1));
$unit=sprintf("%01.2f",($price/$quantity));
 }
else
{ $unit=sprintf("%01.2f",($price/$quantity)); }
?>
<tr>
  <td align='center' class='rescon' style="border-bottom:solid #330000 1px;"><input type="checkbox" name="remove[<?php echo $basket_counter; ?>]" value="<?php echo $basket_counter; ?>" /></td>


and here is the part of the code that processes the removal of the items

$remove = $_POST['remove'];
if (isset($remove) && ($remove!='')) {
        foreach($remove AS $key => $remove_position){
array_splice ($ses_basket_name, $remove_position, 1);
array_splice ($ses_basket_amount, $remove_position, 1);
array_splice ($ses_basket_price, $remove_position, 1);
array_splice ($ses_basket_stockcode, $remove_position, 1);
array_splice ($ses_basket_image, $remove_position, 1);
array_splice ($ses_basket_size, $remove_position, 1);
array_splice ($ses_basket_sizechoice, $remove_position, 1);
array_splice ($ses_basket_id, $remove_position, 1);
$_SESSION['ses_basket_items']--;
}
}


I am using a form with checkboxes named remove[$remove_position] and the positions in the form are correct for each item in the array, but when I select more than 1 item to delete they are not always the correct items only the first 1 selected.
What am I doing wrong here??

Can anyone let me know what I am doing wrong.  I am sure it will (after the fact) be obvious, but I don't see it right now.  Wish to remove all array elements which do not implement ValidatorCallbackInterface.  Thanks

<?php
interface ValidatorCallbackInterface{}
class ValidatorCallback implements ValidatorCallbackInterface{}

function array_filter_recursive($input) {
    foreach ($input as &$value) {
        if (is_array($value)) {
            $value = array_filter_recursive($value);
        }
    }
    return array_filter($input, function($v) {
        return $v instanceOf ValidatorCallbackInterface;
    });
}

function recursive_unset(&$array) {
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            recursive_unset($value);
            if(empty($value)) {
                unset($array[$key]);
            }
        }
        elseif(!$value instanceOf ValidatorCallbackInterface) {
            unset($array[$key]);
        }
    }
}

$validatorCallback = new ValidatorCallback();
$rules=[
    'callbackId'=>"integer",
    'info'=>[
        'arrayofobjects'=>[$validatorCallback],
        'foo1'=>'bar1'
    ],
    'foo2'=>'bar2',
    'bla'=>[
        'a'=>'aa',
        'b'=>'bb',
    ],
    'singleobject'=>$validatorCallback
];

echo('original rules'.PHP_EOL);
var_dump($rules);

$desiredrules=[
    'info'=>[
        'arrayofobjects'=>[$validatorCallback]
    ],
    'singleobject'=>$validatorCallback
];

echo('desired rules'.PHP_EOL);
var_dump($desiredrules);

echo('array_filter_recursive'.PHP_EOL);
var_dump(array_filter_recursive($rules));

echo('recursive_unset'.PHP_EOL);
recursive_unset($rules);
var_dump($rules);

 

original rules
array(5) {
  ["callbackId"]=>
  string(7) "integer"
  ["info"]=>
  array(2) {
    ["arrayofobjects"]=>
    array(1) {
      [0]=>
      object(ValidatorCallback)#1 (0) {
      }
    }
    ["foo1"]=>
    string(4) "bar1"
  }
  ["foo2"]=>
  string(4) "bar2"
  ["bla"]=>
  array(2) {
    ["a"]=>
    string(2) "aa"
    ["b"]=>
    string(2) "bb"
  }
  ["singleobject"]=>
  object(ValidatorCallback)#1 (0) {
  }
}
desired rules
array(2) {
  ["info"]=>
  array(1) {
    ["arrayofobjects"]=>
    array(1) {
      [0]=>
      object(ValidatorCallback)#1 (0) {
      }
    }
  }
  ["singleobject"]=>
  object(ValidatorCallback)#1 (0) {
  }
}
array_filter_recursive
array(1) {
  ["singleobject"]=>
  object(ValidatorCallback)#1 (0) {
  }
}
recursive_unset
array(2) {
  ["info"]=>
  array(2) {
    ["arrayofobjects"]=>
    array(1) {
      [0]=>
      object(ValidatorCallback)#1 (0) {
      }
    }
    ["foo1"]=>
    string(4) "bar1"
  }
  ["singleobject"]=>
  object(ValidatorCallback)#1 (0) {
  }
}