Ctype Функции
PHP Manual

ctype_print

(PHP 4 >= 4.0.4, PHP 5)

ctype_printCheck for printable character(s)

Описание

bool ctype_print ( string $text )

Checks if all of the characters in the provided string, text , are printable.

Параметри

text

The tested string.

Връщани стойности

Returns TRUE if every character in text will actually create output (including blanks). Returns FALSE if text contains control characters or characters that do not have any output or control function at all.

Примери

Example #1 A ctype_print() example

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

Примерът по-горе ще изведе:

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

Вж. също


Ctype Функции
PHP Manual