strlen
(PHP 4, PHP 5, PHP 7)
strlen — Get string length
Description
strlen ( string $string ) : int
Returns the length of the given string
.
Parameters
-
string
-
The string being measured for length.
Return Values
The length of the string
on success, and 0
if the string
is empty.
Examples
Example #1 A strlen() example
<?php $str = 'abcdef'; echo strlen($str); // 6 $str = ' ab cd '; echo strlen($str); // 7 ?>
Notes
Note:
strlen() returns the number of bytes rather than the number of characters in a string.
Note:
strlen() returns
null
when executed on arrays, and anE_WARNING
level error is emitted.
See Also
- count() - Count all elements in an array, or something in an object
- grapheme_strlen() - Get string length in grapheme units
- iconv_strlen() - Returns the character count of string
- mb_strlen() - Get string length
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.strlen.php