How to validate a variable is Email in Php?

In this post, This function checks whether a variable is email address or not. Email address validator.

1. Code:

  <?php
	function checkIsEmail($var){
		return false !== filter_var($var, FILTER_VALIDATE_EMAIL);
	} 
	var_dump(checkIsEmail("soltuts.com"));
	echo "<br>";
	var_dump(checkIsEmail("soltuts@gmail.com"));
?> 

2. Example:

Input:

Input: "soltuts.com"
Input: "soltuts@gmail.com"

Output:

Output: false
Output: true