(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

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


ctype_punct(mixed $text): bool

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



The tested string.


If an int 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.

Return Values

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


Example #1 A ctype_punct() example

= array('ABasdk!@!$#''!@ # $''*&$()');
foreach (
$strings as $testcase) {
    if (
ctype_punct($testcase)) {
"The string $testcase consists of all punctuation.\n";
    } else {
"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

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