ctype_space

(PHP 4 >= 4.0.4, PHP 5)

ctype_space -- Check for whitespace character(s)

Descrição

bool ctype_space ( string text )

Checks if all of the characters in the provided string, text, creates whitespace.

Parâmetros

text

The tested string.

Valores de retornado

Returns TRUE if every character in text creates some sort of white space, FALSE otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters.

Exemplos

Exemplo 1. A ctype_space() example

<?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";
    }
}
?>

O exemplo acima irá imprimir:

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.

Veja também

ctype_cntrl()
ctype_graph()
ctype_punct()