PHP | ctype_alpha() Function

PHP ctype_alpha() Function

Hello dear readers! welcome back to another edition of our tutorial on PHP. In this tutorial guide, we are going to be discussing about the PHP ctype_alpha() Function.

The PHP ctype_alpha() function checks if all the characters in the given string, text are alphabetic.


Following below is the syntax to use this function -

ctype_alpha ( $text );

Parameter Details

Sr.NoParameters & Description


The tested string.

Return Value

This built-in PHP function returns TRUE if every character in the text is a letter, otherwise FALSE.


Try out the below example -

   $strings = array('example', 'example1234');
   foreach ($strings as $test) {
      if (ctype_alpha($test)) {
         echo "$test consists of all letters. \n";
      }else {
         echo "$test does not have all letters. \n";


When the above code is executed, it will produce the following result -

example consists of all letters.
example1234 does not have all letters.

RECOMMENDED POST: PHP | ctype_alnum() Function

Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP ctype_cntrl() Function.

Feel free to ask your questions where necessary and i will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.

Follow us on our various social media platforms to stay updated with our latest tutorials. You can also subscribe to our newsletter in order to get our tutorials delivered directly to your emails.

Thanks for reading and bye for now.