ctype_punct

Description

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

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 $testcase does not consist of all punctuation.\n";     } } ?> This example will output : The string ABasdk!@!$# does not consist of all punctuation. The string !@ # $ does not consist of all punctuation. The string *&$() consists of all punctuation.

See also ctype_cntrl() and ctype_graph().