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How to wait for file to be closed before reading
I have my scanner here at the office FTP'ing scanned documents to a server.
Additionally, I have a php script running indefinitely checking the ftp upload folder and creating thumbnails for those PDF images.
The problem is, if the scanner hasn't finished writing the document to the ftp server, the script fails because it is not a valid PDF document.
I am using ghostscript to create the pdf preview if that helps and my ftp server is proftpd. The server is Ubuntu 14.04 LTS.
Additionally, I have a php script running indefinitely checking the ftp upload folder and creating thumbnails for those PDF images.
The problem is, if the scanner hasn't finished writing the document to the ftp server, the script fails because it is not a valid PDF document.
I am using ghostscript to create the pdf preview if that helps and my ftp server is proftpd. The server is Ubuntu 14.04 LTS.
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PHP
PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.
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