Remove last character from string if last character contain number in PHP - php

Question

I have an array variable which contain values like this:
$items = array(
"tbFrench",
"eaItaly1",
"discount21",
"kkMM5",
"NbndA",
"fcMNSS334"
);
i nedd to remove last character of string from this array values if the last character contain number, for example:
$newItems = array();
foreach($items as $item){
$newItems[] = $this->removeLastCharacter($item);
}
print_r($newItems);
....
function removeLastCharacter($string){
// ????
}
i want the result to look like this when i print_r the $newItems variable:
Array ( [0] => tbFrench [1] => eaItaly [2] => discount2 [3] => kkMM [4] => NbndA [5] => fcMNSS33 )

Answer 1

You could use regular expressions to remove the last digit.
function removeLastCharacter($string){
return preg_replace('[\d$]', '', $string);
}
\d matches every digit and $ references the end of the string. So this will only replace the last character if it is a digit at the end.

Answer 2

You can do a RegEx replacement over all the items in an array by simply providing the array as the subject, like so:
$items = preg_replace('/^d$/', '', $items);
There's no need to put it into a function at all - print_r($items) outputs:
Array
(
[0] => tbFrench
[1] => eaItaly
[2] => discount2
[3] => kkMM
[4] => NbndA
[5] => fcMNSS33
)
If you want to replace all trailing digits you can use /^\d+$/

Answer 3

Give a try with below code if it solve your problem
$items = array(
"tbFrench",
"eaItaly1",
"discount21",
"kkMM5",
"NbndA",
"fcMNSS334"
);
$newArr=array();
foreach($items as $item){
$data = preg_replace('[\d$]','',$item);
array_push($newArr,$data);
}
print_r($newArr);

Answer 4

Why not simply?
print_r( preg_replace( '/\d+$/', "", $items ) ); // preg_replace accepts an array as argument, pass yours directly, no need for a loop.
Array
(
[0] => tbFrench
[1] => eaItaly
[2] => discount
[3] => kkMM
[4] => NbndA
[5] => fcMNSS
)
Regex Explanation:
\d+ — matches a digit (equal to [0-9])
+ Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
$ — asserts position at the end of a line

Answer 5

There is a quick trick using rtrim.
$result = rtrim($str,"0..9");
second argument is a range using 2 dots ".."
You are done !!!