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Checking email format using a regular expression
PHP
Easy
regex
Task «Checking email format using a regular expression»
Write a PHP program that reads a string from standard input and checks whether it matches a simple email pattern: local part (Latin letters, digits, dots, underscores, hyphens), then the '@' symbol, then the domain name (Latin letters, digits, dots, hyphens), then a dot and a top-level domain (from 2 to 6 Latin letters). Output 'Yes' if the string is a valid email, and 'No' otherwise. The string length does not exceed 100 characters.
Input Format
One line containing a potential email address.
Output Format
String 'Yes' or 'No'.
Examples
Example 1
INPUT
user@example.com
OUTPUT
Yes
Example 2
INPUT
test.email@domain.co
OUTPUT
Yes
Example 3
INPUT
1 2 3 4 5 6
OUTPUT
No
Example 4
INPUT
invalid-email@
OUTPUT
No
Example 5
INPUT
4
0 0
0 2
2 2
2 0
OUTPUT
No
main.php