Remove characters on the right side of a string:
<?php$str = "Hello World!";echo $str . "<br>";echo chop($str,"World!");?>The chop() function removes whitespace characters or other predefined characters from the right side of a string.
chop( string,charlist )
| parameter | describe |
|---|---|
| string | Required. Specifies the string to check. |
| charlist | Optional. Specifies which characters are removed from the string. If the charlist parameter is empty, the following characters are removed: " " - NULL "t" - tab character "n" - newline "x0B" - vertical tab character "r" - carriage return " " - space |
| Return value: | Returns the modified string. |
|---|---|
| PHP version: | 4+ |
| Update log: | In PHP 4.1.0, the charlist parameter is added. |
Remove newlines (n) on the right side of a string:
<?php$str = "Hello World!nn";echo $str;echo chop($str);?>The HTML output of the above code is as follows (view source code):
<!DOCTYPE html><html><body>Hello World!Hello World!</body></html>The browser output of the above code is as follows:
Hello World! Hello World!