I have an array.First i want to search a specific value in that array and want to return that value with multiple by a value.I was trying below way but in this way its multiple with array keys but i want it will multiple with arrays value. It can be very simple but i don't know the solution.
<?php
$arr = ['10','20','30','40'];
$searching = array_search("30", $arr);
if ($searching) {
$result = $searching*30;
echo $result;
}
?>
Output is : 60
But i want : 900
The array_search() function search an array for a value and returns
the key.
Try this:
array_search give you the index, so use $arr[$searching].
$arr = ['10','20','30','40'];
$searching = array_search("30", $arr);
if ($searching) {
$result = $arr[$searching] * 30;
echo $result;
}
in_array function will help you to determine if value exists in your array.
If it exists - return this value, multiplied by some other value.
$arr = ['10','20','30','40'];
$search_val = 20;
if (in_array($search_val, $arr)) {
echo 30 * $search_val;
}
Try it:-
<?php
$arr = ['10','20','30','40'];
$val = 20;
echo (in_array($val, $arr)) ? (30 * $val) : "";
?>
Related
I have the following array:
$array = [2,2,5,2,2];
I would like to get the number which is different from the others, for example all the numbers are 2 except the number 5. So Is there anyway to get the different number using any array method or better solution? My solution is:
$array = [2,2,5,2,2];
$array1 = [4,4,4,6,4,4,4];
$element = -1;
$n = -1;
$count = 0;
for($i=0; $i<count($array1); $i++) {
if($element !== $array1[$i] && $element !== -1 & $count==0) {
$n = $array1[$i];
$count++;
}
$element = $array1[$i];
}
dd($n);
You can use array_count_values for group and count same value like:
$array = [2,2,5,2,2];
$countarray = array_count_values($array);
arsort($countarray);
$result = array_keys($countarray)[1]; // 5
Since you only have two numbers, you will always have the number with the least equal values in second position
Reference:
array_count_values
array_keys
A small clarification, for safety it is better to use arsort to set the value in second position because if the smallest number is in first position it will appear as the first value in the array
Sorting Arrays
You can user array_count_values which returns array with item frequency.
Then use array_filter to filter out data as follow:
$arrayData = [2,2,2,5];
$filterData = array_filter(array_count_values($arrayData), function ($value) {
return $value == 1;
});
print_r($filterData);
Inside array_filter(), return $value == 1 means only get the data with 1 frequency and thus filter out the other data.
<?php
function UniqueAndDuplicat($array){
$counts = array_count_values($array);
foreach ($counts as $number => $count) {
print $number . ' | ' . ($count > 1 ? 'Duplicate value ' : 'Unique value ') . "\n";
}
}
$array1 = [2,2,5,2,2];
$array2 = [4,4,4,6,4,4,4];
UniqueAndDuplicat($array1);
//output: 2 | duplicate value 5 | Unique value
UniqueAndDuplicat($array2);
//output: 4 | duplicate value 5 | Unique value
?>
Use this function to reuse this you just call this function and pass an Array to this function it will give both unique and duplicate numbers.
If you want to return only Unique number then use the below code:
<?php
function UniqueAndDuplicat($array){
$counts = array_count_values($array);
foreach ($counts as $number => $count) {
if($count == 1){
return $number;
}
}
}
$array1 = [2,2,5,2,2];
$array2 = [4,4,4,6,4,4,4];
echo UniqueAndDuplicat($array1); // 5
echo "<br>";
echo UniqueAndDuplicat($array2); // 6
?>
json url
i wanna sort champions array. I want to sort it by "
champions -> 0 -> stats -> totalSessionsPlayed " But i can not. How can i short array ?
$url = 'https://tr.api.pvp.net/api/lol/tr/v1.3/stats/by-summoner/3800684/ranked?season=SEASON2016&api_key=RGAPI-2F65B634-F9C5-4DA7-A5E3-1D955D5D1E3B';
$content = file_get_contents($url);
$arr = json_decode($content);
$sorted = sort(array_column($arr, 'totalSessionsPlayed'));
ı found this code but ıt doesn't work.
Use usort with custom comparison function:
$champions = $arr->champions;
// usort alters the input array, no need to assign
usort($champions , function($a, $b) {
// Will sort in descending order, for ascending, switch sides
return $b->stats->totalSessionsPlayed - $a->stats->totalSessionsPlayed;
});
Basically, you have to sort the first level of champions array and compare lower values internally.
Your code does not work, because there is no totalSessionsPlayed key in $arr array directly.
I hope this can help you.
Here I am using the nested foreach loop for the first Object and then second for the second Object .
Using the array_filter helps to remove the empty string/element. as it returns false when an empty element is present.
SORT function Returns TRUE on success or FALSE on failure.
So that's why we used the last loop to display the sorted result.
<?php
$url = 'https://tr.api.pvp.net/api/lol/tr/v1.3/stats/by-summoner/3800684/ranked?season=SEASON2016&api_key=RGAPI-2F65B634-F9C5-4DA7-A5E3-1D955D5D1E3B';
$content = file_get_contents($url);
$arr = json_decode($content);
$champions = ($arr->champions);
foreach($champions as $champion){
$champion_totalSessionsPlayed = $champion;
foreach($champion_totalSessionsPlayed as $champions_totalSessionsPlayed){
$totalSessionsPlayed = $champions_totalSessionsPlayed->totalSessionsPlayed;
$totalSessionsPlayed_array[] = $totalSessionsPlayed;
}
}
$totalSessionsPlayed = array_filter($totalSessionsPlayed_array);
sort($totalSessionsPlayed);
$arrlength = count($totalSessionsPlayed);
for($x = 0; $x < $arrlength; $x++) {
echo $totalSessionsPlayed[$x];
echo "<br>";
}
?>
Using the following example in PHP:
$priv['PAGE_A'] = 11;
$priv['PAGE_B'] = 22;
$priv['PAGE_C'] = 33;
$priv['PAGE_D'] = 44;
1) I would like to iterate on the 4 values in $priv. Would 'foreach' be the correct way to do it?
2) If the value is higher than a given number, I would like to echo the index of this value. Not sure how to do it. The comparaison must be INT (not string).
Ex. using "30" it would output:
PAGE_C
PAGE_D
Is it possible? Or maybe I am not using the correct container for what I'm trying to do ?
PS. How would you call the type of "$priv" in this example ? An array ? An indexed variable ? A dictionary ? A list ?
Thank you.
basically:
<?php
function foo($var){
$priv['PAGE_A'] = 11;
$priv['PAGE_B'] = 22;
$priv['PAGE_C'] = 33;
$priv['PAGE_D'] = 44;
$out='';
foreach ($priv as $k=>$v){
if ($v >$var){
$out .= $k.'<br>';
}
}
return $out;
}
echo foo('30');
demo: http://codepad.viper-7.com/GNX7Gf
Just create an array with the letters to iterate over.
$letters = array('A','B','C','D');
for($i=0;$i<count($letters);$i++) {
if($priv['PAGE_' . $letters[$i]] > /*value*/) {
echo $priv['PAGE_' . $letters[$i]];
}
}
$priv is an array.
Also, it's not too clear to me what you are exactly trying to do. Are you trying to echo the value of the array element if it's greater than a constant value?
We could do it using PHP builtin array functions. Its good to use builtin functions if possible in case of performance.
array_walk will do the trick for you. In this case $priv is an associative PHP array. Following is the one line script that will do what you want to achieve:
$input = 30;
$priv['PAGE_A'] = 11;
$priv['PAGE_B'] = 22;
$priv['PAGE_C'] = 33;
$priv['PAGE_D'] = 44;
array_walk($priv, function($value, $key, $input){ if($value > $input) echo $key . '<br>';}, $input);
I have an associative array, $teams_name_points. The length of the array is unknown.
How do I access the first and forth value without knowing the key of this array in the easiest way?
The array is filled like this:
$name1 = "some_name1";
$name2 = "some_name2";
$teams_name_points[$name1] = 1;
$teams_name_points[$name2] = 2;
etc.
I want to do something like I do with an indexed array:
for($x=0; $x<count($teams_name_points); $x++){
echo $teams_name_points[$x];
}
How do I do this?
use array_keys?
$keys = array_keys($your_array);
echo $your_array[$keys[0]]; // 1st key
echo $your_array[$keys[3]]; // 4th key
You can use array_values which will give you a numerically indexed array.
$val = array_values($arr);
$first = $val[0];
$fourth = $val[3]
In addition to the array_values, to loop through as you show:
foreach($teams_name_points as $key => $value) {
echo "$key = $value";
}
You can get use the array_keys function such as
//Get all array keys in array
$keys = array_keys($teams_name_points);
//Now get the value for 4th key
//4 = (4-1) --> 3
$value = $teams_name_points[$keys[3]];
You can get all values now as exists
$cnt = count($keys);
if($cnt>0)
{
for($i=0;$i<$cnt;$i++)
{
//Get the value
$value = $team_name_points[$keys[$i]];
}
}
Let's say I have a multidimensional array like this:
[
["Thing1", "OtherThing1"],
["Thing1", "OtherThing2"],
["Thing2", "OtherThing3"]
]
How would I be able to count how many times the value "Thing1" occurs in the multidimensional array?
you can use array_search for more information see this http://www.php.net/manual/en/function.array-search.php
this code is sample of this that is in php document sample
<?php
function recursiveArraySearchAll($haystack, $needle, $index = null)
{
$aIt = new RecursiveArrayIterator($haystack);
$it = new RecursiveIteratorIterator($aIt);
$resultkeys;
while($it->valid()) {
if (((isset($index) AND ($it->key() == $index)) OR (!isset($index))) AND (strpos($it->current(), $needle)!==false)) { //$it->current() == $needle
$resultkeys[]=$aIt->key(); //return $aIt->key();
}
$it->next();
}
return $resultkeys; // return all finding in an array
} ;
?>
If needle is found in haystack more than once, the first matching key is returned. To return the keys for all matching values, use array_keys() with the optional search_value parameter instead.
http://www.php.net/manual/en/function.array-keys.php
Try this :
$arr =array(
array("Thing1","OtherThing1"),
array("Thing1","OtherThing2"),
array("Thing2","OtherThing3")
);
echo "<pre>";
$res = array_count_values(call_user_func_array('array_merge', $arr));
echo $res['Thing1'];
Output :
Array
(
[Thing1] => 2
[OtherThing1] => 1
[OtherThing2] => 1
[Thing2] => 1
[OtherThing3] => 1
)
It gives the occurrence of each value. ie : Thing1 occurs 2 times.
EDIT : As per OP's comment : "Which array do you mean resulting array?" - The input array. So for example this would be the input array: array(array(1,1),array(2,1),array(3,2)) , I only want it to count the first values (1,2,3) not the second values (1,1,2) – gdscei 7 mins ago
$arr =array(
array("Thing1","OtherThing1"),
array("Thing1","OtherThing2"),
array("Thing2","OtherThing3")
);
$res = array_count_values(array_map(function($a){return $a[0];}, $arr));
echo $res['Thing1'];
function showCount($arr, $needle, $count=0)
{
// Check if $arr is array. Thx to Waygood
if(!is_array($arr)) return false;
foreach($arr as $k=>$v)
{
// if item is array do recursion
if(is_array($v))
{
$count = showCount($v, $needle, $count);
}
elseif($v == $needle){
$count++;
}
}
return $count;
}
Using in_array can help:
$cont = 0;
//for each array inside the multidimensional one
foreach($multidimensional as $m){
if(in_array('Thing1', $m)){
$cont++;
}
}
echo $cont;
For more info: http://php.net/manual/en/function.in-array.php
try this
$arr =array(
array("Thing1","OtherThing1"),
array("Thing1","OtherThing2"),
array("Thing2","OtherThing3")
);
$abc=array_count_values(call_user_func_array('array_merge', $arr));
echo $abc[Thing1];
$count = 0;
foreach($array as $key => $value)
{
if(in_array("Thing1", $value)) $count++;
}
If you prefer code brevity zero global scope pollution, you can count every value and access the one count that you do want:
echo array_count_values(array_merge(...$array))['Thing1'] ?? 0;
If you don't want to bother counting values where the count will never be needed, then you can visit leafnodes with array_walk_recursive() and +1 everytime the target value is encountered.
$thing1Count = 0;
array_walk_recursive($array, function($v) use(&$thing1Count) { $thing1Count += ($v === 'Thing1'); });
echo $thing1Count;
Both snippets return 2. Here's a Demo.