PHP - strlen

Trieda

Metóda - strlen

(PHP 4, PHP 5, PHP 7)

The strlen() function is used to measure the length of a string.

Note:The function returns the number of bytes instead of the number of characters. (For pure ASCII texts without accept characters are the values the same). To determine the length of modern-encoded strongs, use the mb_strlen() function.

Procedurálne

function strlen (string $string) : int

Parametre

Názov	Dátový typ	Predvolená hodnota	Popis
$string	string		The string which length we want to determine.

Mávratovej hodnoty

Vracia: int

Returns the length of the specified string. Returns null if an array is passed and in this case a warning is emited.

Príklady

<?php
echo strlen(' testx '); // Returns 7 (The length of specified string)
echo '<br>';
echo strlen(' testč ');  // Returns 8 (The number of bytes)

Súvisiace manuály

function count (mixed $array_or_countable, int $mode = COUNT_NORMAL) : int
function mb_strlen (string $str, string $encoding = mb_internal_encoding()) : mixed

Aktivity

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