Sep 24
Password Protecting a Zip File Using PHP
I needed a way to add a password to zip files I was creating in PHP, but it seems support for that is lacking. So I resorted to using Info-ZIP. This particular site I was running PHP on a Windows IIS server. Info-ZIP is free and supported on multiple platforms. I downloaded the Windows binary file and put zip.exe in my C:\WINDOWS folder. I then had to give the Internet User Execute permission on C:\WINDOWS\System32\cmd.exe in order for me to call the system() function in php.
Then I wrote a quick test script that seemed to work:
<?php
$filename = "filename.zip";
$pdf = "document.pdf";
echo system("zip -P 1234 -j $filename \"$pdf\"");
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