PHP | ctype_graph() Function

PHP ctype_graph() 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_graph() Function.

The PHP ctype_graph() function checks if all the characters in the given string, text, creates a visible output.


Following below is the syntax to use this function -

ctype_graph ( $text );

RECOMMENDED POST: PHP | ctype_digit() Function

Parameter Details

Sr.NoParameters & Description


The tested string.

Return Value

This function returns TRUE if every character in the text is printable and actually creates visible output (no whitespace), otherwise FALSE.


Try out the below example -

   $strings = array('asdf\n\r\t', 'arf12', 'LKA#@%.54');
   foreach ($strings as $test) {
      if (ctype_graph($test)) {
         echo "$test consists of all (visibly) printable characters \n";
      }else {
         echo "$test does not have all (visibly) printable characters. \n";


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

asdf\n\r\t consists of all (visibly) printable characters.
arf12 consists of all (visibly) printable characters
LKA#@%.54 consists of all (visibly) printable characters

RECOMMENDED POST: PHP | ctype_cntrl() 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_lower() 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.