I've been trying to use the sort() function to rearrange the array from smallest to largest.
This is my print_r of the array which came from serialized data that was imploded:
Array
(
[0] => 127173
[1] => 127172
[2] => 127174
[3] => 127175
[4] => 127178
[5] => 127176
[6] => 127177
[7] => 127179
[8] => 127180
[9] => 127183
[10] => 127181
)
With sort() and asort() I just get a 1 returning.
Try this code... in fact the sort function is working fine.
$array = Array
(
'0' => 127173,
'1' => 127172,
'2' => 127174,
'3' => 127175,
'4' => 127178,
'5' => 127176,
'6' => 127177,
'7' => 127179,
'8' => 127180,
'9' => 127183,
'10' => 127181
);
sort($array); // <= Sort the array desc
foreach( $array as $key => $value ){
echo $key."\t=>\t".$value."\n";
}
Consider that sort function actually alters your array and returns bool. See doc.
Check this example online
Use asort(), like this:
$A = Array (127173,127172,127174,127175,127178,127176,127177,127179,127180,127183,127181);
asort($A);
print_r($A);
Result:
Array ( [1] => 127172 [0] => 127173 [2] => 127174 [3] => 127175 [5] => 127176 [6] => 127177 [4] => 127178 [7] => 127179 [8] => 127180 [10] => 127181 [9] => 127183 )
Compare sorting-functions here: http://php.net/manual/en/array.sorting.php
Related
here is my array:
Array
(
[0] => Array
(
[id] => 8
[title] => MUSIC
)
[1] => Array
(
[id] => 17
[title] => Indie
)
[2] => Array
(
[id] => 14
[title] => SPORTS
)
[3] => Array // Need to move this on first position
(
[id] => 15
[title] => Hipster
)
[4] => Array
(
[id] => 16
[title] => Web Seriesdf
)
)
I want array with key [3] to be on first position and then the rest of the elements.
I tried array_merge and array_unshift. But not working
You just need to take only three steps.
- Copy n'th array in variable.
- Delete n'th index from array. using unset()
- Put variable at the 0th index of the array. Using array_unshift()
Step 1:
$array=$mainArray[N];
Step 2:
unset($mainArray[N]);
Step 3:
array_unshift($mainArray, $array);
Lets assume your array to be $x;
$new_value = $x[3];
unset($x[3]);
array_unshift($x,$new_value);
This shall solve your problem.
You can also use array_merge
<?php
$a = [1,2,3,4,5];
$new_value = [$a[1]];
unset($a[1]);
$c = array_merge($new_value,$a);
print_r($c);
?>
Check output : https://eval.in/590702
Use
$array = array('3' => $array['3']) + $array;
phpfiddle Preview and eval.in Preview
Note: im moving 2 in my array. In your method add 3
Example
$array = array(
'0' => array(
'id'=>'8',
'title'=>'MUSIC'
),
'1' => array(
'id'=> '17',
'title'=> 'Indie'
),
'2' => array(
'id'=>'14',
'title'=>'SPORTS',
),
'3' => array(
'id'=>'14',
'title'=>'SPORTS',
),
);
$array = array('2' => $array['2']) + $array;
print_r($array);
Output
Array ( [2] => Array ( [id] => 14 [title] => SPORTS ) [0] => Array ( [id] => 8 [title] => MUSIC ) [1] => Array ( [id] => 17 [title] => Indie ) [3] => Array ( [id] => 14 [title] => SPORTS ) )
Use array_unshift();
Please check below code.
<?php
$a = Array(
'0' => Array('id' => '8','title' => 'MUSIC'),
'1' => Array('id' => '17','title' => 'Indie'),
'2' => Array('id' => '14','title' => 'SPORTS'),
'3' => Array('id' => '15','title' => 'Hipster'),
'4' => Array('id' => '16','title' => 'Web Seriesdf')
);
echo '<pre>';print_r($a);
$a3 = $a['3'];
unset($a['3']);
array_unshift($a,$a3);
echo '<pre>';print_r($a);
?>
Check output - https://eval.in/590723
Below is my array:
Array
(
[3] => Array
(
[2] => 3
[4] => 1
[5] => 2
[6] => 2
)
[5] => Array
(
[2] => 1
[3] => 2
[4] => 3
[6] => 3
)
In this array I want to find the maximum number and if the array contains the same maximum values then we choose one maximum value randomly.
Expected output like below:
Array
(
[3] => Array
(
[2] => 3
)
[5] => Array
(
[4] => 3
)
[6] => Array
(
[2] => 3
)
)
This is what I've tried:
$found = Array( [3] => Array ( [2] => 3 [4] => 1 [5] => 2 [6] => 2 ) [5] => Array ( [2] => 1 [3] => 2 [4] => 3 [6] => 3 ) [6] => Array ( [2] => 3 [3] => 2 [4] => 2 [5] => 3 ))
$fmaxnum = array();
foreach($found as $fk => $fv){
$fmaxnum[$fk] = max($fv);
}
echo "<pre>";print_r($fmaxnum);echo "</pre>"
You will get max value with max() but for index you have to use array_keys()
You can try this:
$found = Array ( '3' => Array ( '2' => 3 ,'4' => 1, '5' => 2, '6' => 2 ),
'5' => Array ( '2' => 1 ,'3' => 2, '4' => 3, '6' => 3 ),
'6' => Array ( '2' => 3 ,'3' => 2, '4' => 2, '5' => 3 )
);
$fmaxnum = array();
foreach($found as $fk => $fv){
$max_key = array_keys($fv, max($fv));
$fmaxnum[$fk] = array(
($max_key[0]) => max($fv) /* This will give small index value */
/* (count($max_key)-1) => => max($fv) // this will give highest index value */
);
}
echo "<pre>";
print_r($fmaxnum);
echo "</pre>";
Simple solution with array_map and array_keys functions:
// supposing $arr is your initial array
$arrMax = array_map(function($v){
$maximum = max($v);
return [array_keys($v, $maximum)[0] => $maximum];
}, $arr);
print_r($arrMax);
The output:
Array
(
[3] => Array
(
[2] => 3
)
[5] => Array
(
[4] => 3
)
[6] => Array
(
[2] => 3
)
)
if you just want to know the highest value as I understood
In this array I want to find the maximum number and if the array
contains the same maximum values then we choose one maximum value
randomly.
you could just do this
$array = [['3','1','2','2'],['1','2','3','3'],['2','1','1','3']];
$result = [];
foreach(new RecursiveIteratorIterator(new RecursiveArrayIterator($array)) as $value) {
$result[] = $value;
}
echo max($result);
this will foreach all the array and push the values on $result, then you just have one level array and easily use max function
I am having trouble understanding the correct way to use array_diff in PHP and whether or not it is the correct function to use in my case.
$array1 =
Array
(
[0] => 1457543
[1] => 1457544
[2] => 1461778
[3] => 1465640
[4] => 1473801
[5] => 1474814
[6] => 1474815
[7] => 1475227
[8] => 1478144
[9] => 1479478
[10] => 1480843
)
$array2 =
Array
(
[0] => 1336623
[1] => 1457543
[2] => 1457544
[3] => 1461778
[4] => 1465640
[5] => 1468007
[6] => 1474814
[7] => 1474815
[8] => 1478144
[9] => 1479478
[10] => 1480843
)
I want to make sure that all numbers present in $array2 are also present in $array1.
I would use array_diff($array2, $array1);. Is this correct?
Does array_diff ignore the keys, because I need it to do that, and just check the values, because the keys won't usually be the same in both arrays for the same value as there are missing numbers which is the point in this code to locate.
Yes, if you use :
array_diff($array2, $array1);
You will be sure that all $array2 values are in the $array1. But if $array1 have values that $array2 don't have, you will not get them.
Besides, array_diff ignore your keys. Exactly that you want !
The array_diff() function is used to find the difference of given arrays.
example
<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("e"=>"red","f"=>"green","g"=>"blue");
$result=array_diff($a1,$a2);
print_r($result);
?>
Output
Array ( [d] => yellow )
In your code
Errors
Invalid array pointers [0] should come 0
Missing , on end of array elements
php code
<?php
$array1 = array
(
0 => 1457543,
1 => 1457544,
2 => 1461778,
3 => 1465640,
4 => 1473801,
5 => 1474814,
6 => 1474815,
7 => 1475227,
8 => 1478144,
9 => 1479478,
10 => 1480843
);
$array2 = array
(
0=> 1336623,
1=> 1457543,
2=> 1457544,
3=> 1461778,
4=> 1465640,
5=> 1468007,
6=> 1474814,
7=> 1474815,
8=> 1478144,
9=> 1479478,
10 => 1480843
);
$result=array_diff($array1,$array2);
print_r($result);
?>
Output
Array ( [4] => 1473801 [7] => 1475227 )
Your Output in phpFiddle
I have the following array
$a = array(0 => 'Item',
1 => 'Wattles',
2 => 'Types',
3 => 'Compost',
4=> 'Estimated',
5 => '123',
6 => 'Actual',
7 => '12',
);
That is sorted with the following code.
echo "<pre>";
print_r($a);
$a_len = count($a);
$fnl = array();
$i = 0;
while($i<$a_len){
$fnl[$a[$i]] = $a[++$i];
$i++;
}
print_r($fnl);
It prints correctly
Array
(
[Item] => Wattles
[Types] => Compost
[Estimated Qty] => 123
[Actual Qty] => 12
)
until i add multiple entries.
Array
(
[0] => Item
[1] => Wattles
[2] => Types
[3] => Compost
[4] => Estimated Qty
[5] => 123
[6] => Actual Qty
[7] => 12
[8] => Item
[9] => Silt Fence
[10] => Types
[11] => Straw
[12] => Estimated Qty
[13] => 45
[14] => Actual Qty
[15] => 142
)
I need to make this add items in a multidimensional array.
$items = array
(
array("Wattles","Silt Fence), //items
array("Compost","Straw"), //types
array(123,45), //estimated quantity
array(12,142) //actual quantity
);
There are a few given numbers. There are exactly 4 entries (8 items) before the list repeats itself.
I have been stuck on this portion for hours, and don't know how to get my code working as I want it to.
To get the expected result with string keys you can do:
foreach(array_chunk($a, 2) as $pairs) {
$result[$pairs[0]][] = $pairs[1];
}
Yields:
Array
(
[Item] => Array
(
[0] => Wattles
[1] => Silt Fence
)
[Types] => Array
(
[0] => Compost
[1] => Straw
)
[Estimated] => Array
(
[0] => 123
[1] => 45
)
[Actual] => Array
(
[0] => 12
[1] => 142
)
)
Then if you want it numerically indexed:
$result = array_values($result);
You have your structure for a multidimensional array wrong. You should construct your array like this:
$a = array(
0 => array(
'Item' => 'Wattles',
'Types' => 'Compost',
'Estimated' => 123,
'Actual' => 12
)
);
Then to add to it:
$a[] = array(
'Item' => 'Silt Fence',
'Types' => 'Straw',
'Estimated' => 45,
'Actual' => 142
);
Render it out to see the results which are what I think you are looking for.
print_r($a);
I can post a link if you want to learn how to sort multidimensional arrays by sub-array values if you need.
I have following array with php code
I could not find where I am mistaken
I'm trying to filter some of these array results and delete them. When I try to list them I could not succeded
array (
0 => 'do-update.php',
1 => 'sitemap.xml',
2 => 'sitemap.xml.gz',
3 => 'wp-config.php',
'wp-content' =>
array (
'uploads' =>
array (
2013 =>
array (
'05' =>
array (
0 => 'kabeduvarkad-1024x768.jpg',
1 => 'kabeduvarkad-150x150.jpg',
2 => 'kabeduvarkad-300x225.jpg',
3 => 'kabeduvarkad-940x198.jpg',
4 => 'kabeduvarkad.jpg',
5 => 'kabeduvarkad1-1000x288.jpg',
6 => 'kabeduvarkad1-1024x768.jpg',
7 => 'kabeduvarkad1-150x150.jpg',
8 => 'kabeduvarkad1-300x225.jpg',
9 => 'kabeduvarkad1-400x300.jpg',
10 => 'kabeduvarkad1.jpg',
11 => 'kabeduvarkad2-1000x288.jpg',
12 => 'kabeduvarkad2-1024x768.jpg',
13 => 'kabeduvarkad2-150x150.jpg',
14 => 'kabeduvarkad2-300x225.jpg',
15 => 'kabeduvarkad2-400x300.jpg',
16 => 'kabeduvarkad2.jpg',
),
10 =>
array (
),
),
2014 =>
array (
'02' =>
array (
),
),
),
),
'wp-update' =>
array (
0 => 'wp-update.tar',
1 => 'wp-update.tar.gz',
2 => 'wp-update1.tar',
3 => 'wp-update1.tar.gz',
),
4 => 'wp-update.tar.gz',
)
This is my function
function listArrayRecursive($array_name, $ident = ''){
$result = array();
foreach ($array_name as $k => $v){
if (is_array($v)){
$result[] = listArrayRecursive($v, $ident.'/'.$k);
}else{
$result[] = $ident. '/' . $v . '<br>';
}
}
return $result;
}
I have following result
Array
(
[0] => /do-update.php<br>
[1] => /sitemap.xml<br>
[2] => /sitemap.xml.gz<br>
[3] => /wp-config.php<br>
[4] => Array
(
[0] => Array
(
[0] => Array
(
[0] => Array
(
[0] => /wp-content/uploads/2013/05/kabeduvarkad-1024x768.jpg<br>
[1] => /wp-content/uploads/2013/05/kabeduvarkad-150x150.jpg<br>
[2] => /wp-content/uploads/2013/05/kabeduvarkad-300x225.jpg<br>
[3] => /wp-content/uploads/2013/05/kabeduvarkad-940x198.jpg<br>
[4] => /wp-content/uploads/2013/05/kabeduvarkad.jpg<br>
[5] => /wp-content/uploads/2013/05/kabeduvarkad1-1000x288.jpg<br>
[6] => /wp-content/uploads/2013/05/kabeduvarkad1-1024x768.jpg<br>
[7] => /wp-content/uploads/2013/05/kabeduvarkad1-150x150.jpg<br>
[8] => /wp-content/uploads/2013/05/kabeduvarkad1-300x225.jpg<br>
[9] => /wp-content/uploads/2013/05/kabeduvarkad1-400x300.jpg<br>
[10] => /wp-content/uploads/2013/05/kabeduvarkad1.jpg<br>
[11] => /wp-content/uploads/2013/05/kabeduvarkad2-1000x288.jpg<br>
[12] => /wp-content/uploads/2013/05/kabeduvarkad2-1024x768.jpg<br>
[13] => /wp-content/uploads/2013/05/kabeduvarkad2-150x150.jpg<br>
[14] => /wp-content/uploads/2013/05/kabeduvarkad2-300x225.jpg<br>
[15] => /wp-content/uploads/2013/05/kabeduvarkad2-400x300.jpg<br>
[16] => /wp-content/uploads/2013/05/kabeduvarkad2.jpg<br>
)
[1] => Array
(
)
)
[1] => Array
(
[0] => Array
(
)
)
)
)
[5] => Array
(
[0] => /wp-update/wp-update.tar<br>
[1] => /wp-update/wp-update.tar.gz<br>
[2] => /wp-update/wp-update1.tar<br>
[3] => /wp-update/wp-update1.tar.gz<br>
)
[6] => /wp-update.tar.gz<br>
)
Expected Result is
Array
(
[0] => /do-update.php<br>
[1] => /sitemap.xml<br>
[2] => /sitemap.xml.gz<br>
[3] => /wp-config.php<br>
[4] => /wp-content/uploads/2013/05/kabeduvarkad-1024x768.jpg<br>
[5] => /wp-content/uploads/2013/05/kabeduvarkad-150x150.jpg<br>
[6] => /wp-content/uploads/2013/05/kabeduvarkad-300x225.jpg<br>
[7] => /wp-content/uploads/2013/05/kabeduvarkad-940x198.jpg<br>
[8] => /wp-content/uploads/2013/05/kabeduvarkad.jpg<br>
[9] => /wp-content/uploads/2013/05/kabeduvarkad1-1000x288.jpg<br>
[10] => /wp-content/uploads/2013/05/kabeduvarkad1-1024x768.jpg<br>
[11] => /wp-content/uploads/2013/05/kabeduvarkad1-150x150.jpg<br>
[12] => /wp-content/uploads/2013/05/kabeduvarkad1-300x225.jpg<br>
[13] => /wp-content/uploads/2013/05/kabeduvarkad1-400x300.jpg<br>
[14] => /wp-content/uploads/2013/05/kabeduvarkad1.jpg<br>
...
[110] => /wp-update/wp-update.tar<br>
[111] => /wp-update/wp-update.tar.gz<br>
[112] => /wp-update/wp-update1.tar<br>
[113] => /wp-update/wp-update1.tar.gz<br>
[114] => /wp-update.tar.gz<br>
)
You can do it like this:
<?php
// Dummy data source
$data = array(
'/do-update.php',
'/sitemap.xml',
'/sitemap.xml.gz',
'/wp-config.php',
array(
array(
array(
'/wp-content/uploads/2013/05/kabeduvarkad-1024x768.jpg',
'/wp-content/uploads/2013/05/kabeduvarkad-150x150.jpg',
'/wp-content/uploads/2013/05/kabeduvarkad-300x225.jpg<br>'
)
)
)
);
// Helper function
function getFiles($data, &$fileList) {
foreach ($data as $dataItem) {
if (is_array($dataItem))
getFiles($dataItem, $fileList);
else
$fileList[] = $dataItem;
}
}
// Debug
echo "<b>Orignal Array</b>";
var_dump($data);
echo "<hr>";
// Helper function usage
echo "<b>Parsed Array</b>";
$fileList = array();
getFiles($data, $fileList);
var_dump($fileList);
?>
Output:
Ok use this function its working
$all=array();
$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
foreach($it as $v) {
$all[]=$v;
}
print_r($all);
With $var[] = you basically say that you want to add a new Element to $var with an incremented key.
Your Recursive frunction returns an array.
So this array is assigned as a new element in your array.
But what you want is a flat array.
Instead of adding an array to your array like this:
if (is_array($v)){
$result[] = listArrayRecursive($v, $ident.'/'.$k);
Merge the existing arrays like this:
if (is_array($v)){
$tmpResult = listArrayRecursive($v, $ident.'/'.$k);
$result = array_merge($result, $tmpResult);
You can see a working example here.