Last value condition foreach in array? - php

Question

I have an array like that:
[0] => Array
(
[sendby] => 3
[refresh] => 0
[last] => 0
)
[1] => Array
(
[sendby] => 3
[refresh] => 1
[last] => 1
)
[2] => Array
(
[sendby] => 8
[refresh] => 1
[last] => 1
)
I want the value last to be 1 when the value sendby (here 3 and 8) is the last of the entire array! How can I do that?

Answer 1

Get the last 2 value and compare with array [3,8]
// get array of sendby values
$temp = array_column($array, 'sendby');
// get array with two last values
$temp = array_slice($temp, -2);
// Check
if ($temp == [3,8]) {
$value = 1;
}
else {
$value = 0;
}
or in one line
$value = array_slice(array_column($array, 'sendby'), -2) == [3,8] ? 1 : 0;
demo
Update on base of comments
// get array with two last values
$temp = array_slice(array_column($array, 'sendby'), -2);
foreach($array as &$x) {
// If current send by is in $temp array
if(in_array($x['sendby'], $temp)) {
$x['last'] = 1;
}
else {
$x['last'] = 0;
}
}
print_r($array);

Answer 2

You can use an array to assist the existing ocurrences of that id. I have an working example (Tested on php sandbox):
$array = array(
0 => array
(
'sendby' => 3,
'refresh' => 0,
),
1 => array
(
'sendby' => 3,
'refresh' => 1,
),
2 => array
(
'sendby' => 8,
'refresh' => 1,
)
);
$ocurrences = [];
foreach($array as $key => $elem ){
$id = $elem['sendby'];
if (isset($ocurrences[$id])) {
$array[$ocurrences[$id]]['last'] = 0;
$array[$key]['last'] = 1;
$ocurrences[$id] = $key;
} else {
$ocurrences[$id] = $key;
$array[$key]['last'] = 1;
}
}
echo print_r($array, 1);
The result:
Array
(
[0] => Array
(
[sendby] => 3
[refresh] => 0
[last] => 0
)
[1] => Array
(
[sendby] => 3
[refresh] => 1
[last] => 1
)
[2] => Array
(
[sendby] => 8
[refresh] => 1
[last] => 1
)
)
Basically I used an array with the ocurrences of the 'sendby' index of the array. The $occurences array has the elements with the key of the last checked element.

Answer 3

Lets suppose your array is $array;
You could iterate through it and if it's the last element, then set [last] to 1, else set to 0;
Try to run the below code after your array is populated.
$i =1;
foreach($array as $ar) {
$ar->last = ($i == count($array) && ($ar->sendby == 3 || $ar->sendby == 8)) ? 1 : 0;
$i++;
}

Answer 4

$count = count($arr) ;
$i = 0;
foreach($arr as $key=>$val) {
if(++$I === $count) {
echo "last element" ;
}
}