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Best way to check if a URL is valid
...not use FILTER_VALIDATE_URL. It is messy and unreliable. E.g. it validates ttps://www.youtube.com as valid
– Jeffz
May 17 at 13:23
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.htaccess redirect all pages to new domain
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RewriteCond %{HTTP_HOST} !^YOURDOMAIN\.example$ [NC]
RewriteRule ^/(.*)$ https://YOURDOMAIN.example/$1 [R=301,L]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
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