Below is my result array:
Array
(
[0] => Array
(
[id] => 3
[name] => test
)
[1] => Array
(
[id] => 4
[name] => Balikavadhu
)
)
From above array, I want to generate a new array as below:
array(3,4) // where 3 and 4 are id values of respective array
Any help or quick answer will be appreciated.
Thanks in advance !
Yet another option:
$newArray = [];
foreach ($arrayResults as $result) {
$newArray[] = $result['id'];
}
Put your output array into an array called $arr. Then do this :
$newArr = array();
$id = 0;
foreach ($arr as $val)
{
$newArr[$i] = $val['id'];
$id++;
}
You could do something like
$newArray = [];
foreach ($arrayResults as $result) {
array_push($newArray, $result['id']);
}
Related
I have this php array named $ids:
Array (
[0] => Array ( [id] => 10101101 )
[1] => Array ( [id] => 18581768 )
[2] => Array ( [id] => 55533322 )
[3] => Array ( [id] => 55533322 )
[4] => Array ( [id] => 64621412 )
)
And I need to make a new array containing each $ids id value, as the new keys, and the times each one appears, as the new values.
Something like this:
$newArr = array(
10101101 => 1,
18581768 => 1,
55533322 => 2,
64621412 => 1,
);
This is what I have:
$newArr = array();
$aux1 = "";
//$arr is the original array
for($i=0; $i<count($arr); $i++){
$val = $arr[$i]["id"];
if($val != $aux1){
$newArr[$val] = count(array_keys($arr, $val));
$aux1 = $val;
}
}
I supose array_keys doesn't work here because $arr has the id values in the second dimension.
So, how can I make this work?
Sorry for my bad english and thanks.
array_column will create an array of all the elements in a specific column of a 2-D array, and array_count_values will count the repetitions of each value in an array.
$newArr = array_count_values(array_column($ids, 'id'));
Or do it by hand like this where $arr is your source array and $sums is your result array.
$sums = array();
foreach($arr as $vv){
$v = $vv["id"];
If(!array_key_exists($v,$sums){
$sums[$v] = 0;
}
$sums[$v]++;
}
You can traverse your array, and sum the id appearance, live demo.
$counts = [];
foreach($array as $v)
{
#$counts[$v['id']] += 1;
}
print_r($counts);
I have this array:
Array
(
[0] => Array
(
[0] => 1
[1] => a,b,c
)
[1] => Array
(
[0] => 5
[1] => d,e,f
)
)
I want the final array to be this:
Array
(
[0] => Array
(
[0] => 1
[1] => a
)
[1] => Array
(
[0] => 1
[1] => b
)
[2] => Array
(
[0] => 1
[1] => c
)
[3] => Array
(
[0] => 5
[1] => d
)
[4] => Array
(
[0] => 5
[1] => e
)
[5] => Array
(
[0] => 5
[1] => f
)
)
This is what I did:
<?php
$array = array(array(1,"a,b,c"),array(5,"d,e,f"));
$temp=array();
$count = 0;
foreach($array as $arr){
$rows = explode(",",$arr[1]);
foreach($rows as $row){
$temp[$count] = $arr;
$temp[$count][1] = $row;
$count++;
}
}
print_r($temp);
?>
This totally works but I was wondering if there was a better way to do this. This can be very slow when I have huge data.
Try like this way...
<?php
$array = array(array(1,"a,b,c"),array(5,"d,e,f"));
$temp=array();
$count = 0;
foreach($array as $arr){
$rows = explode(",",$arr[1]);
foreach($rows as $row){
$temp[$count][] = $arr[0];
$temp[$count][] = $row;
$count++;
}
}
/*print "<pre>";
print_r($temp);
print "<pre>";*/
?>
Here's a functional approach:
$result = array_merge(...array_map(function(array $a) {
return array_map(function($x) use ($a) {
return [$a[0], $x];
}, explode(",", $a[1]));
}, $array));
Try it online.
Or simply with two loops:
$result = [];
foreach ($array as $a) {
foreach (explode(",", $a[1]) as $x) {
$result[] = [$a[0], $x];
}
}
Try it online.
Timing these reveals that a simple loop construct is ~8 times faster.
functional: 4.06s user 0.08s system 99% cpu 4.160 total
loop: 0.53s user 0.05s system 102% cpu 0.561 total
If you need other way around,
$array = array(array(1, "a,b,c"), array(5, "d,e,f"));
$temp = [];
array_walk($array, function ($item, $key) use (&$temp) {
$second = explode(',', $item[1]);
foreach ($second as $v) {
$temp[] = [$item[0], $v];
}
});
print_r($temp);
array_walk — Apply a user supplied function to every member of an array
Here is working demo.
I have an array that looks something like this:
Array (
[0] => Array ( [country_percentage] => 5 %North America )
[1] => Array ( [country_percentage] => 0 %Latin America )
)
I want only numeric values from above array. I want my final array like this
Array (
[0] => Array ( [country_percentage] => 5)
[1] => Array ( [country_percentage] => 0)
)
How I achieve this using PHP?? Thanks in advance...
When the number is in first position you can int cast it like so:
$newArray = [];
foreach($array => $value) {
$newArray[] = (int)$value;
}
I guess you can loop the 2 dimensional array and use a preg_replace, i.e.:
for($i=0; $i < count($arrays); $i++){
$arrays[$i]['country_percentage'] = preg_replace( '/[^\d]/', '', $arrays[$i]['country_percentage'] );
}
Ideone Demo
Update Based on your comment:
for($i=0; $i < count($arrays); $i++){
if( preg_match( '/North America/', $arrays[$i]['country_percentage'] )){
echo preg_replace( '/[^\d]/', '', $arrays[$i]['country_percentage'] );
}
}
Try this:
$arr = array(array('country_percentage' => '5 %North America'),array("country_percentage"=>"0 %Latin America"));
$result = array();
foreach($arr as $array) {
$int = filter_var($array['country_percentage'], FILTER_SANITIZE_NUMBER_INT);
$result[] = array('country_percentage' => $int);
}
Try this one:-
$arr =[['country_percentage' => '5 %North America'],
['country_percentage' => '0 %Latin America']];
$res = [];
foreach ($arr as $key => $val) {
$res[]['country_percentage'] = (int)$val['country_percentage'];
}
echo '<pre>'; print_r($res);
output:-
Array
(
[0] => Array
(
[country_percentage] => 5
)
[1] => Array
(
[country_percentage] => 0
)
)
You can use array_walk_recursive to do away with the loop,
passing the first parameter of the callback as a reference to modify the initial array value.
Then just apply either filter_var or intval as already mentioned the other answers.
$array = [
["country_percentage" => "5 %North America"],
["country_percentage" => "0 %Latin America"]
];
array_walk_recursive($array, function(&$value,$key){
$value = filter_var($value,FILTER_SANITIZE_NUMBER_INT);
// or
$value = intval($value);
});
print_r($array);
Will output
Array
(
[0] => Array
(
[country_percentage] => 5
)
[1] => Array
(
[country_percentage] => 0
)
)
You could get all nemeric values by looping through the array. However I don't think this is the most efficient and good looking answer, I'll post it anyways.
// Array to hold just the numbers
$newArray = array();
// Loop through array
foreach ($array as $key => $value) {
// Check if the value is numeric
if (is_numeric($value)) {
$newArray[$key] = $value;
}
}
I missunderstood your question.
$newArray = array();
foreach ($array as $key => $value) {
foreach ($value as $subkey => $subvalue) {
$subvalue = trim(current(explode('%', $subvalue)));
$newArray[$key] = array($subkey => $subvalue);
}
}
If you want all but numeric values :
$array[] = array("country_percentage"=>"5 %North America");
$array[] = array("country_percentage"=>"3 %Latin America");
$newArray = [];
foreach ($array as $arr){
foreach($arr as $key1=>$arr1) {
$newArray[][$key1] = intval($arr1);
}
}
echo "<pre>";
print_R($newArray);
This is kind of a ghetto method to doing it cause I love using not as many pre made functions as possible. But this should work for you :D
$array = array('jack', 2, 5, 'gday!');
$new = array();
foreach ($array as $item) {
// IF Is numeric (each item from the array) will insert into new array called $new.
if (is_numeric($item)) { array_push($new, $item); }
}
When print_r($my_array);
Array
(
[0] => Array
(
[value] => num1
[label] =>
)
[1] => Array
(
[value] => num2
[label] =>
)
[2] => Array
(
[value] => num3
[label] =>
)
)
Now I wonder how to create a new array variable to hold only 1 level with the following structure. e.g:
if print_r($new_array), it will show:
Array
(
[0] => num1
[1] => num2
[2] => num3
)
Try foreach() and store value in new array
foreach($arr as $v) {
$newarr[] = $v['value'];
}
print_r($newarr);
$new = array_map(function($element){ return $element['value'] ; }, $array);
Try with foreach of $my_array and assign value to $new_array variable like
$new_array = array();
foreach($my_array as $array){
$new_array[] = $array['value'];
}
print_r($new_array);
Loop thru the array as follows and push the desired elements into a new array.
$new_array = array();
for($i=0;$i<count($my_array);$i++) {
array_push($new_array, $my_array[$i]['value']);
}
print_r($new_array);
below can work:
foreach($my_array as $k => $v){
$new_array[] = $v['value'];
}
print_r($new_array);
$new_array = array();
foreach ($my_array as $key => $value) {
$new_array[] = $value['value'];
}
print_r($new_array);
My array is like:
Array
(
[0] => Array
(
[0] => "name"
[1] => "zxczxc5"
)
[1] => Array
(
[0] => "about"
[1] => "zxczxc"
)
[2] => Array
(
[0] => "contact"
[1] => "zxczxc"
)
)
I want to generate another array like this :
Array
{
['name']="zxczxc5";
}
Array
{
['contact']="zxczxc";
}
Array
{
['about']="zxczxc";
}
I want the first array index zero value goes as the index of second value in my new array.
Thanks.
There are many ways to solve what you want to achieve, this is just one of those:
foreach ($array as &$pair) {
$pair = call_user_func_array('array_combine', $pair);
}
unset($pair);
print_r($array);
It makes use of array_combine.
Assuming you name your first Array $aTest:
foreach($aTest as $aElement)
{
$aNewArray[$aElement[0]] = $aElement[1];
}
print_r($aNewArray);
foreach ($array as $value) {
$newArray[$value['0']] = $value['1'];
}
Assuming the first array is called $array
$new_array = array();
foreach($array as $element)
{
$new_array[] = array($element[0] => $element[1]);
}
$newArr = array();
foreach($arr as $val) {
$newArr[$val[0]] = $val[1];
}