Ctype Функции
PHP Manual

ctype_graph

(PHP 4 >= 4.0.4, PHP 5)

ctype_graphCheck for any printable character(s) except space

Описание

bool ctype_graph ( string $text )

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

Параметри

text

The tested string.

Връщани стойности

Returns TRUE if every character in text is printable and actually creates visible output (no white space), FALSE otherwise.

Примери

Example #1 A ctype_graph() example

<?php
$strings 
= array('string1' => "asdf\n\r\t"'string2' => 'arf12''string3' => 'LKA#@%.54');
foreach (
$strings as $name => $testcase) {
    if (
ctype_graph($testcase)) {
        echo 
"The string '$name' consists of all (visibly) printable characters.\n";
    } else {
        echo 
"The string '$name' does not consist of all (visibly) printable characters.\n";
    }
}
?>

Примерът по-горе ще изведе:

The string 'string1' does not consist of all (visibly) printable characters.
The string 'string2' consists of all (visibly) printable characters.
The string 'string3' consists of all (visibly) printable characters.

Вж. също


Ctype Функции
PHP Manual