Foreach loop not working in php

For loop in php

/*
For loop in php
*/

<?php
for ($i = 0; $i < 10; $i++) {
     echo $i."<br>";
} 
?>

Foreach loop not working in php

<?php
$songs = $_POST["songs"];
//$songs = Array("one","two","three");
foreach ($songs as $song) 
{
   $songStr = test_input($song);
   $songsOut .= "<li>$songStr</li>";
};

$songList = "Songs: <ol> $songsOut </ol> \r\n";
echo $songList;

function test_input($data)
{
   $data = trim($data);
   $data = stripslashes($data);
   $data = htmlspecialchars($data);
   return $data;
}

?>

Source: stackoverflow.com

Similar codes

0 vote165 views1 answer
Wordpress plugin functions exist
PHP
0 vote173 views1 answer
Index:of curiosa 2019 mp4
PHP
11 votes208 views1 answer
Install php 8.1 fpm and all modules on ubuntu
PHP
-1 vote164 views1 answer
Addphp calculate next letter
PHP
1 vote179 views4 answers
Get month name php
PHP
-1 vote206 views2 answers
How to get correct file or content mime type using/in php
PHP
17 votes162 views3 answers
Show alert in php
PHP
0 vote208 views4 answers
Date format change in laravel blade
PHP Laravel
0 vote158 views1 answer
License_verify
PHP
0 vote212 views1 answer
Php read from mariadb
PHP