ctype_space

(PHP 4 >= 4.0.4, PHP 5)

ctype_space — Check for whitespace character(s)

Leírás

bool ctype_space ( string $text )

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

Paraméterek

text: The tested string.

Visszatérési értékek

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.

Példák

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";
    }
}
?>

A fenti példa a következő kimenetet adja:

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.

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