Ctype Функции
PHP Manual

ctype_space

(PHP 4 >= 4.0.4, PHP 5)

ctype_spaceCheck for whitespace character(s)

Описание

bool ctype_space ( string $text )

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

Параметри

text

The tested string.

Връщани стойности

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.

Примери

Example #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";
    }
}
?>

Примерът по-горе ще изведе:

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.

Вж. също


Ctype Функции
PHP Manual