Following are in built PHP function to validate the email address and Ip Address.
Validate Email - Example 1
$email='helo@gmail.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
echo $email. ' - Invalid';
}else{
echo $email. ' - Valid';
}
helo@gmail.com - Valid
Validate Email - Example 2
$email='464646@gmail.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
echo $email. '- Invalid';
}else{
echo $email. ' - Valid';
}
464646@gmail.com - Valid
Validate Email - Example 3
$email='arunkumar.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
echo $email. ' - Invalid';
}else{
echo $email. ' - Valid';
}
arunkumar.com - Invalid
Validate IP Address - Example 1
Question: How to Validate IP Address?
$ipAddress = '127.0.0.1';
if (!filter_var($ipAddress, FILTER_VALIDATE_IP)) {
echo "$ipAddress is In-valid.";
}else{
echo "$ipAddress is Valid.";
}
127.0.0.1 is Valid
Validate IP Address - Example 2
$ipAddress = '127.test.0.0.1';
if (!filter_var($ipAddress, FILTER_VALIDATE_IP)) {
echo "$ipAddress is In-valid.";
}else{
echo "$ipAddress is In-Valid.";
}
127.test.0.0.1 is Valid
Validate URL - Example 1
$ipAddress = '127.test.0.0.1';
$website = 'https://www.web-technology-experts-notes.in';
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)) {
echo "Invalid URL";
}else{
echo "Valid URL";
}
Valid URL
