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PHP in a Nutshell
book

PHP in a Nutshell

by Paul Hudson
October 2005
Intermediate to advanced content levelIntermediate to advanced
372 pages
11h 35m
English
O'Reilly Media, Inc.
Content preview from PHP in a Nutshell

Name

strlen()

Synopsis

    int strlen ( string str )

The strlen() function takes just one parameter (the string), and returns the number of characters in it:

    print strlen("Foo") . "\n"; // 3
    print strlen("Goodbye, Perl!") . "\n"; // 14

Behind the scenes, strlen() actually counts the number of bytes in your string, as opposed to the number of characters. It is for this reason that multibyte strings should be measured with mb_strlen().

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Publisher Resources

ISBN: 0596100671Errata Page