Is it possible to delete all array elements after an index?
$myArrayInit = array(1=>red, 30=>orange, 25=>velvet, 45=>pink);
now some "magic"
$myArray = delIndex(30, $myArrayInit);
to get
$myArray = array(1=>red, 30=>orange);
due to the keys in $myArray are not successive, I don't see a chance for array_slice()
Please note : Keys have to be preserved! + I do only know the Offset Key!!
<?php
$myArrayInit = [1 => 'red', 30 => 'orange', 25 => 'velvet', 45 => 'pink']; //<-- Your actual array
$offsetKey = 25; //<--- The offset you need to grab
//Lets do the code....
$n = array_keys($myArrayInit); //<---- Grab all the keys of your actual array and put in another array
$count = array_search($offsetKey, $n); //<--- Returns the position of the offset from this array using search
$new_arr = array_slice($myArrayInit, 0, $count + 1, true);//<--- Slice it with the 0 index as start and position+1 as the length parameter.
print_r($new_arr);
Output :
Array
(
[1] => red
[30] => orange
[25] => velvet
)
Try
$arr = array(1=>red, 30=>orange, 25=>velvet, 45=>pink);
$pos = array_search('30', array_keys($arr));
$arr= array_slice($arr,0,$pos+1,true);
echo "<pre>";
print_r($arr);
See demo
I'd iterate over the array up until you reach the key you want to truncate the array thereafter, and add those items to a new - temporary array, then set the existing array to null, then assign the temp array to the existing array.
This uses a flag value to determine your limit:
$myArrayInit = array(1=>'red', 30=>'orange', 25=>'velvet', 45=>'pink');
$new_array = delIndex(30,$myArrayInit);
function delIndex($limit,$array){
$limit_reached=false;
foreach($array as $ind=>$val){
if($limit_reached==true){
unset($array[$ind]);
}
if($ind==$limit){
$limit_reached=true;
}
}
return $array;
}
print_r($new_array);
array functions were used !Try this:
function delIndex($afterIndex, $array){
$flag = false;
foreach($array as $key=>$val){
if($flag == true)
unset($array[$key]);
if($key == $afterIndex)
$flag = true;
}
return $array;
}
This code is not tested
