PHP make sure string has no whitespace?

PHPServer Side ProgrammingProgramming

To check whether a string has no whitespace, use the preg_match() in PHP.

The syntax is as follows 

preg_match('/\s/',$yourVariableName);

Example

The PHP code is as follows

 Live Demo

<!DOCTYPE html>
<html>
<body>
<?php
$name="John Smith";
if ( preg_match('/\s/',$name) ){
   echo "The name (",$name,") has the space";
} else {
   echo "The Name (",$name,") has not the space";
}
?>
</body>
</html>

Output

This will produce the following output

The name (John Smith) has the space
raja
AmitDiwan
Published on 13-Oct-2020 08:47:43
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