(PHP 4, PHP 5)
strlen — Get string length
$string
)
Returns the length of the given string.
The length of the string on success,
and 0 if the string is empty.
| Wersja | Opis |
|---|---|
| 5.3.0 |
Prior versions treated arrays as the string Array, thus returning
a string length of 5 and emitting an E_NOTICE level error.
|
Przykład #1 A strlen() example
<?php
$str = 'abcdef';
echo strlen($str); // 6
$str = ' ab cd ';
echo strlen($str); // 7
?>
Informacja:
strlen() returns the number of bytes rather than the number of characters in a string.
Informacja:
strlen() returns
NULLwhen executed on arrays, and anE_WARNINGlevel error is emitted.