trim comma from both sides php code example

Example 1: trim function php

/* Removes whitespace from beginning and end of a string if
* the second parameter is omitted
* First parameter must be the string
* Second parameter is optional and can include an alternative character or set of characters.
*/

// Example 1
$string = " Hello world ";
$trimmedString = trim($string);
// Output = 'Hello world',

// Example 2
$string = "babcabcHello worldabbaca";
$trimmedString = trim($string, 'abc');
// Output = 'Hello world',

Example 2: remove whitespace from string php

$str = "\n\n\nHello World!\n\n\n";
echo "With trim: " . trim($str);