This filter modifies a given string such that certain characters are removed from the beginning and end.
The following options are supported for Zend_Filter_StringTrim:
charlist: List of characters to remove from the beginning and end of the string. If this is not set or is null, the default behavior will be invoked, which is to remove only whitespace from the beginning and end of the string.
A basic example of usage is below:
<?php
$filter = new Zend_Filter_StringTrim();
print $filter->filter(' This is (my) content: ');
The above example returns 'This is (my) content:'. Notice that the whitespace characters have been removed.
<?php
$filter = new Zend_Filter_StringTrim(':');
// or new Zend_Filter_StringTrim(array('charlist' => ':'));
print $filter->filter(' This is (my) content:');
The above example returns 'This is (my) content'. Notice that the whitespace characters
and colon are removed. You can also provide an instance of
Zend_Config or an array with a 'charlist' key. To set the
desired character list after instantiation, use the
setCharList() method.
The getCharList() return the values set for charlist.