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PHP | ctype_space() Function

PHP ctype_space() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP ctype_space() Function.

The built-in ctype_space() function checks if all the characters in the provided string, text, creates a whitespace.


Following below is the syntax to use this function -

ctype_space ( $text );

Parameter Details

Sr.NoParameters & Description


The tested string.

Return Value

This built-in function returns TRUE if every character in the text creates some sort of whitespace, otherwise FALSE. Apart from the blank character, this also includes tab, vertical tab, line feed, carriage return and form feed characters.


Try out the below example -

   $strings = array('\n\r\t', '\test123' );
   foreach ($strings as $test) {
      if (ctype_space($test)) {
         echo "$test consists of all whitespace characters. \n";
      }else {
         echo "$test does not have all whitespace characters. \n";


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

\n\r\t does not have all whitespace characters.
\test123 does not have all whitespace characters.

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

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