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ctype_upper> <ctype_punct
Last updated: Fri, 18 Jul 2008

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ctype_space

(PHP 4 >= 4.0.4, PHP 5)

ctype_space — Controlla gli spazi

Descrizione

bool ctype_space ( string $testo )

Restituisce TRUE se ogni carattere di testo crea qualche tipo di spazio, FALSE in caso contrario. Oltre allo spazio questo include anche tab, tab verticale, line feed (avanza di una riga), carriage return (a capo) e form feed (avanza di un modulo).

Example #1 Esempio di uso di ctype_space()

<?php
$strings 
= array('string1' => "\n\r\t"'string2' => "\narf12"'string3' => '\n\r\t');
foreach (
$strings as $name => $testcase) {
    if (
ctype_space($testcase)) {
        echo 
"The string '$name' consists of all whitespace characters.\n";
    } else {
        echo 
"The string '$name' does not consist of all whitespace characters.\n";
    }
}
?>

Questo esempio visualizzerĂ  :

The string 'string1' consists of all whitespace characters.
The string 'string2' does not consist of all whitespace characters.
The string 'string3' does not consist of all whitespace characters.

Vedere anche ctype_cntrl(), ctype_graph() e ctype_punct().



ctype_upper> <ctype_punct
Last updated: Fri, 18 Jul 2008
 
add a note add a note User Contributed Notes
ctype_space
per dot zut at gmail dot com
22-Jul-2008 09:48
The contradiction bellow brutaly forced me to do some testing.

ctype_space(""), as well as ctype_space(NULL), returns false
ctype_space(), returns NULL, with a warning

(PHP Version 4.4.8)
abozzay at yahoo dot com
07-May-2008 11:53
PHP Version 5.2.3-1ubuntu6
ctype_space("") returns false
Anonymous
17-Oct-2007 05:46
ctype_space("") i.e. the empty string, returns true

ctype_upper> <ctype_punct
Last updated: Fri, 18 Jul 2008
 
 
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