02-21-2010
I recommend you use preg_replace() with a regular expression to remove any leading, trailing and "more than one space in the middle" of your string. This is really easy to do with one PHP preg_replace() statement. Or you could use more than one preg_replace() if easier for you at first, breaking the problem down into parts first.
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LEARN ABOUT PHP
mb_eregi_replace
MB_EREGI_REPLACE(3) 1 MB_EREGI_REPLACE(3)
mb_eregi_replace - Replace regular expression with multibyte support ignoring case
SYNOPSIS
string mb_eregi_replace (string $pattern, string $replace, string $string, [string $option = "msri"])
DESCRIPTION
Scans $string for matches to $pattern, then replaces the matched text with $replacement.
PARAMETERS
o $pattern
- The regular expression pattern. Multibyte characters may be used. The case will be ignored.
o $replace
- The replacement text.
o $string
- The searched string.
o $option
-$option has the same meaning as in mb_ereg_replace(3).
RETURN VALUES
The resultant string or FALSE on error.
NOTES
Note
The internal encoding or the character encoding specified by mb_regex_encoding(3) will be used as the character encoding for this
function.
Warning
Never use the e modifier when working on untrusted input. No automatic escaping will happen (as known from preg_replace(3)). Not
taking care of this will most likely create remote code execution vulnerabilities in your application.
SEE ALSO
mb_regex_encoding(3), mb_ereg_replace(3).
PHP Documentation Group MB_EREGI_REPLACE(3)