Posts made by Howard Miller

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I would carefully check your error logs to see if there might be an issue with loading the extension. I'm struggling now because I don't really know how this works on Windows.

I don't think it's relevant but I should mention. 'php -v' doesn't help you at all. The command line php interpreter is a completely different binary from that working with the web server. It may even have a different php.ini or be a different version.
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You checked PHP Info? Did you find an LDAP section or not? 

I have...



Can you confirm that C:\php\php.ini is what PHP Info thinks the ini file is?

While you are there, go down to the 'core' block and check 'disable_functions'. It should say 'no value'.
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"PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.2.x is supported too (since Moodle 4.2.3). See PHP for details."

I would try going to Site admin > Server > PHP Info.

Check the php.ini details in the top block (are you editing the correct file) and look for any LDAP section (if there is one). Just in case you spot anything strange. 
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Not an answer to your issue but an observation. Videos are just a pain... I would recommend using a proper video server (or even just YouTube) rather than uploading huge mp4 files to Moodle. There are all sorts of fun and games around delivering videos properly that these servers work around. The videos are probably causing performance issues on your main site - you just haven't noticed (yet).