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How can I check file permissions, without having to run operating system specific command via passthru() or exec()?
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Step 2 – Right-click the folder or file and click “Properties” in the context menu. Step 3 – Switch to “Security” tab and click “Advanced”. Step 4 – In the “Permissions” tab, you can see the permissions held by users over a particular file or folder. Step 5 – Click “Effective Access” tab.
Check Permissions in Command-Line with Ls Command If you prefer using the command line, you can easily find a file's permission settings with the ls command, used to list information about files/directories. You can also add the –l option to the command to see the information in the long list format.
Use fileperms() function
clearstatcache();
echo substr(sprintf('%o', fileperms('/etc/passwd')), -4);
You can use the is_readable(), is_executable() etc.. commands.
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