How to remove the comma on the right in php

php method to remove the comma on the right: First create a PHP sample file; then use the "rtrim($str, ',');" method to delete the comma on the right in the string.

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

First explain each separately,

trim filters both ends of the string,

rtrim filters the tail of the string, =chop()

ltrim filters the beginning of the string.

Filters the key in the string You can only use str_replace.

As an example,

PHP code

The code is as follows:

$str = '123,333,234,';
echo rtrim($str, ',');

rtrim example code 2

The code is as follows:

<?php
$text = "\t\tThese are a few words :) ...  ";
$trimmed = rtrim($text);
// $trimmed = "\t\tThese are a few words :) ..."
$trimmed = rtrim($text, " \t.");
// $trimmed = "\t\tThese are a few words :)"
$clean = rtrim($binary, "\x00..\x1F");
// trim the ASCII control characters at the end of $binary
// (from 0 to 31 inclusive)
?>

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