What are common issues with caching PHP files using OPcache?

One common issue with caching PHP files using OPcache is that changes made to PHP files may not be reflected immediately, leading to outdated code being executed. To solve this, you can manually clear the OPcache or set up a system to automatically clear the cache when files are updated. 

// Manually clear OPcache
opcache_reset();

// Automatically clear OPcache when files are updated
$files = array('/path/to/file1.php', '/path/to/file2.php');
foreach ($files as $file) {
    opcache_invalidate($file, true);
}

Keywords

OPcache caching PHP files performance troubleshooting

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