ctype_space
(PHP 4 >= 4.0.4, PHP 5)
ctype_space — Check for whitespace character(s)
Beskrivelse
bool ctype_space
( string $text
)
Checks if all of the characters in the provided string, text , creates whitespace.
Parameterliste
- text
-
The tested string.
Returneringsværdier
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.
Eksempler
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";
}
}
?>
Ovenstående eksempel vil udskrive:
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.