How can I validate a Shopify store’s URL? Given a URL how can I know whether it is a valid URL or 404 page not found? I’m using PHP. I’ve tried using PHP get_headers()
.
<?php $getheadersvalidurlresponse= get_headers('https://test072519.myshopify.com/products/test-product1'); // VALID URL print_r($getheadersvalidurlresponse); $getheadersinvalidurlresponse= get_headers('https://test072519.myshopify.com/products/test-product1451'); // INVALID URL print_r($getheadersinvalidurlresponse); ?>
But for both valid and invalid URLs, I got the same response.
Array ( [0] => HTTP/1.1 403 Forbidden [1] => Date: Wed, 08 Jul 2020 13:27:52 GMT [2] => Content-Type: text/html [3] => Connection: close .............. )
I’m expecting 200 OK status code for valid URL and 404 for invalid URL.
Can anyone please help to check whether given shopify URL is valid or not using PHP?
Thanks in advance.
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Answer
This happens because Shopify differentiates between bot requests and actual genuine requests to avoid denial of service attack up to a certain point. To overcome this problem, you will have to specify the user-agent
header to mimic a browser request for an appropriate HTTP response.
As an improvement, you can make a HEAD
request instead of a GET
request(as get_headers()
uses GET request by default, as mentioned in the examples
) because here we are only concerned about response metadata and not response body.
Snippet:
<?php $opts = array( 'http'=>array( 'method'=> "HEAD", 'header'=> "User-agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36" ) ); $headers1 = get_headers('https://test072519.myshopify.com/products/test-product1',0,stream_context_create($opts)); $headers2 = get_headers('https://test072519.myshopify.com/products/test-product1451',0,stream_context_create($opts)); echo "<pre>"; print_r($headers1); print_r($headers2);