I have an array with the values $arr = array ("1.", "2.") and would like to add new values to this array where the new values will be the existing values with an added value.
Example: $arr = array("1.", "2.") should transforms into $arr = array ("1.", "2.", "1.1", "2.1") .
Functional approach:
<?php
$input = ['1.', '2.'];
$append = '1';
$out = array_merge(
$input,
array_map(function(string $val) use ($append) {
return $val . $append;
}, $input)
);
var_dump($out);
Run it live: https://3v4l.org/TeRvN
How it works: It takes the input array (values '1.' and '2.'), adds the $append to each array element and merges with the original array.
I recommend a for loop
<?php
$arr = array("1.","2.");
$length = count($arr);
for($i=0; $i<$length; $i++)
$arr[] = $arr[$i] . '1';
var_dump($arr);
Hope that helps :)
