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(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.

Related Function(s)

ctype_cntrl()

ctype_graph()