The PHP character filter function removes the last comma of the string of rtrim

  • 2020-05-30 19:43:18
  • OfStack

First of all,

trim filters both ends of the string,
rtrim filter string tail,=chop()
ltrim filters string headers.

Filter the keys in the string with str_replace.
So for example,

PHP code


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

rtrim instance code 2


<?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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