trim
string trim(string string)
Removes whitespace from the left and right ends of a string.
Returns:
String
Description:
trim() removes all whitespace characters from both the left and right ends of a string. The function considers the following characters to be whitespace:
Character Name | ASCII Value | PHP Character Escape Sequence |
---|---|---|
null | 0 | \0 |
tab | 9 | \t |
newline | 10 | \n |
vertical tab | 11 | none |
carriage return | 13 | \r |
space | 32 | none |
Version:
PHP 3+, PHP 4+
See also:
To strip whitespace from the start or end of a string:
chop() ltrim() rtrim()
Example:
Ensure that a value submitted contains characters other than whitespace
<?php if (count ($HTTP_POST_VARS)) { $name = trim ($HTTP_POST_VARS['name']); if ($name) { echo ("<b>$name</b>: There are some who ... |
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