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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.

Notes

Note:

If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative values have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string containing the decimal digits of the integer.

See Also

PHP Manual