count_chars

Dostupnost ve verzích: PHP 4.0

Return information about characters used in a string

Parametry

Parametr Datový typ Výchozí hodnota Poznámka
$string string   The examined string.
$mode int null See return values.

Návratové hodnoty

mixed

Depending on mode count_chars returns one of the following: 0 – an array with the byte-value as key and the frequency of every byte as value. 1 – same as 0 but only byte-values with a frequency greater than zero are listed. 2 – same as 0 but only byte-values with a frequency equal to zero are listed. 3 – a string containing all unique characters is returned. 4 – a string containing all not used characters is returned.

Další zdroje

http://php.net/…nt-chars.php

Sponzorované odkazy
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