6e15e696ce
scandir by default sorts files in ascending order. this is unnecessary when you're picking a random file anyway. it's just wasting CPU cycles and increasing latency as more files are added.
currently it is
$files = scandir($dir);
it should be
$files = scandir($dir, SCANDIR_SORT_NONE);
20 lines
551 B
PHP
20 lines
551 B
PHP
<?php
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$dir = "static/banners/";
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$files = scandir($dir, SCANDIR_SORT_NONE);
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$images = array_diff($files, array('.', '..'));
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$name = $images[array_rand($images)];
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// open the file in a binary mode
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$fp = fopen($dir . $name, 'rb');
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// send the right headers
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header('Cache-Control: no-cache, no-store, must-revalidate'); // HTTP 1.1
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header('Pragma: no-cache'); // HTTP 1.0
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header('Expires: 0'); // Proxies
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header('Content-Type: ' . $fp['type']);
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header('Content-Length: ' . $fp['bytes']);
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// dump the picture and stop the script
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fpassthru($fp);
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exit;
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?>
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