PHP ctype_punct() Function Usage and Example

PHP Ctype Function Manual

　The ctype_punct() function checks if printable characters do not include whitespace, numbers, and letters.

Syntax

ctype_punct($text);

Definition and usage

This function checks if all characters in the provided string are punctuation symbols.

Parameter

Return value

　If each character in the text is printable but not a letter, number, or whitespace, it returns TRUE; otherwise, it returns FALSE.

Online example

<?php
　　　$strings = array('k211!@!$#, 'foo!#$bar', ''*$());
　　　
　　　foreach ($strings as $test) {
　　　　　　if (ctype_punct($test)) {
　　　　　　　　　echo "$test Punctuation marks \n";
　　　　　　}else {
　　　　　　　　　echo "$test Non-punctuation characters \n";
　　　　　　}
　　　}
?>

Output result:

k211!@!$# Non-punctuation characters　
foo!#$bar Non-punctuation characters　
*Punctuation marks

　 　PHP Ctype Function Manual