PHP FILTER_VALIDATE_URL ເຄື່ອງກວດສະບັບ
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FILTER_VALIDATE_URL ເຄື່ອງກວດສະບັບທີ່ວິເສດຄວາມຄວາມສຳຄັນຈາກ URL。
- Name: "validate_url"
- ID-number: 273
Possible flags：
- FILTER_FLAG_SCHEME_REQUIRED - Requires the URL to be an RFC-compliant URL. (e.g., http://example)
- FILTER_FLAG_HOST_REQUIRED - Requires the URL to contain a hostname (http://www.example.com)
- FILTER_FLAG_PATH_REQUIRED - Requires the URL to have a path after the hostname (e.g., eg.com/example1/)
- FILTER_FLAG_QUERY_REQUIRED - Requires the URL to have a query string (e.g., "eg.php?age=37")
Example
Example 1
<?php
$url = "http://www.example.com";
if(!filter_var($url, FILTER_VALIDATE_URL))
{
echo "URL is not valid";
}
else
{
echo "URL is valid";
}
?>
Output：
URL is valid
Example 2
<?php
if(!filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_QUERY_REQUIRED))
{
echo "URL is not valid";
}
else
{
echo "URL is valid";
}
?>
Output：
URL is valid
