Funções para String
PHP Manual

count_chars

(PHP 4, PHP 5)

count_charsRetorna informações sobre os caracteres usados numa string

Descrição

mixed count_chars ( string $string [, int $mode ] )

Conta o número de ocorrências de cada byte-value (0..255) na string e retorna ela de várias maneiras.

Parâmetros

string

A string a ser examinada.

mode

O parâmetro opcional mode, o valor padrão é 0.

Valor Retornado

Dependendo do mode count_chars() pode retornar o seguinte:

Exemplos

Exemplo #1 Exemplo count_chars()

<?php
$data 
"Two Ts and one F.";

foreach (
count_chars($data1) as $i => $val) {
   echo 
"There were $val instance(s) of \"" chr($i) , "\" in the string.\n";
}
?>

O exemplo acima irá imprimir:

There were 4 instance(s) of " " in the string.
There were 1 instance(s) of "." in the string.
There were 1 instance(s) of "F" in the string.
There were 2 instance(s) of "T" in the string.
There were 1 instance(s) of "a" in the string.
There were 1 instance(s) of "d" in the string.
There were 1 instance(s) of "e" in the string.
There were 2 instance(s) of "n" in the string.
There were 2 instance(s) of "o" in the string.
There were 1 instance(s) of "s" in the string.
There were 1 instance(s) of "w" in the string.

Veja Também


Funções para String
PHP Manual