Remove last character from a string

Question

I have a list of country as an array .. i want this array in following format to later return it via ajax :-

"india","usa","uk" ..

Used following code to get somewhat i was looking for ..

foreach($country_list as $country) {
   $countries .= '"'.$country['label'].'",';
}

problem is it is giving output like "india","usa","uk", ... i.e with trailing comma .

Tried to remove it with

substr_replace($countries, "0", -1);

and

rtrim($countries, ",");

But didnt work ! .. Please help !

Answer 1

I think that you're missing to assign the variable back after the trim:

$s = '"india","usa","uk",';
$s = rtrim($s, ',');
// prints "india","usa","uk"
print $s;

Demo

Try before buy

Answer 2

try this substr() or mb_substr()

substr($string, 0, -1);
mb_substr($string, 0, -1);

or check this link

Answer 3

Have you tried using: str_replace(",", " ", $countries);

This function should replace each occurence of a comma with a space.

Answer 4

if (strlen($b) > 1){
   $b = substr($b,0, -1);
}

Answer 5

Use implode instead:

$arr = array();
foreach($country_list as $country)
  array_push($arr, $country['label']);
$comma_separated = implode(",", $arr);

Answer 6

Try this

$countries = [];
foreach($country_list as $country) {
   $countries[] = $country['label'];
}
$new_array = implode(",", $countries);

Answer 7

Try this

1. create a variable ($comsep) and initialise it to an empty string.
2. in the foreach loop concatenate the variable ($comsep) at the start of the string.
3. add an extra statement in the foreach loop to set the variable ($comsep) to the value "," - after the concatenation statement.

This will put a comma at the start of each appended string except for the first one. The is no longer a trailing comma to deal with so no need to try trimming it off.

Answer 8

// Try to use chop() function in php. It helps in removing last character from a string

<?php
    echo '<br>' .$country_name = "'USA','UK','India',";
    echo '<br>' .chop($country_name,",");
    exit;
?>

Output : 'USA','UK','India'

Answer 9

foreach($country_list as $country) {
   $countries[] = $country['label'];
}
json_encode($countries);