Ctype Functions
PHP Manual

ctype_punct

(PHP 4 >= 4.0.4, PHP 5)

ctype_punct Check for any printable character which is not whitespace or an alphanumeric character

Description

bool ctype_punct ( string $text )

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

Parameters

text

The tested string.

Return Values

Returns TRUE if every character in text is printable, but neither letter, digit or blank, FALSE otherwise.

Examples

Example #1 A ctype_punct() example

<?php
$strings 
= array('ABasdk!@!$#''!@ # $''*&$()');
foreach (
$strings as $testcase) {
    if (
ctype_punct($testcase)) {
        echo 
"The string $testcase consists of all punctuation.\n";
    } else {
        echo 
"The string $testcase does not consist of all punctuation.\n";
    }
}
?>

The above example will output:

The string ABasdk!@!$# does not consist of all punctuation.
The string !@ # $ does not consist of all punctuation.
The string *&$() consists of all punctuation.

See Also


Ctype Functions
PHP Manual