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Detailed explanation of the difference between get_headers and curl in php

小云云
Release: 2023-03-21 08:30:01
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When judging whether a link is accessible in php, I checked the documentation and saw that there is a get_headers() method, but in actual use it does not seem to be as fast as curl -I, so I tested it and found that get_headers() in php ) method actually sends a get request, while curl -I in the Linux command sends a head request, so if you only determine whether a link is 200, using curl -I is a better choice.

We enter the curl -I command


Looking at the Nginx log, we can know that a Head request was sent


We use the get_headers() method


and find that it is a get request


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