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

ctype_print
ctype_space
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.

### 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

- ctype_cntrl() - Check for control character(s)
- ctype_graph() - Check for any printable character(s) except space

ctype_print
ctype_space
Ctype Functions
PHP Manual