(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_strlen — Get string length
$str
[, string $encoding = mb_internal_encoding()
] )Gets the length of a string.
strThe string being checked for length.
encodingThe encoding
parameter is the character encoding. If it is omitted, the internal character
encoding value will be used.
Returns the number of characters in
string str having character encoding
encoding. A multi-byte character is
counted as 1.
Returns FALSE if the given encoding is invalid.
This function may
return Boolean FALSE, but may also return a non-Boolean value which
evaluates to FALSE. Please read the section on Booleans for more
information. Use the ===
operator for testing the return value of this
function.