How do I delete an item inside an array using a PHP function? I have tried the following but the array remains unaffected:
<?php
$fruits = ["banana", "apple", "kiwi", "pear"];
function deleteFromArray($arr) {
unset($arr[0]);
$arr = array_values( $arr );
}
deleteFromArray($fruits);
var_dump($fruits);
// returns the array without any changes...
You are only unsetting the element of the array inside your function, but the variable outside of it isn't edited. Plus, you're not using a consistent variable inside of the function (where does $restcome from?).
You have to add a return inside your function, and then use your variable to call it :
<?php
$fruits = array("banana", "apple", "kiwi", "pear");
function deleteFromArray($arr) {
unset($arr[0]);
$arr = array_values( $arr ); // Not $rest
return $arr;
}
$fruits = deleteFromArray($fruits);
var_dump($fruits); // returns ['apple', 'kiwi', 'pear']
$rest was my mistake, I meant to write $arr which I fixed in my question, anyway, thanks for the answer!For this use pass by reference method.This method only use when you want to remove from original array.
$fruits = ["banana", "apple", "kiwi", "pear"];
function deleteFromArray(&$arr) {
unset($arr[0]);
}
deleteFromArray($fruits);
print_r($fruits);
Notice: Undefined variable: rest in ..
array_values bit is important to reset the array keys, you shouldn't have removed it ;)