Yesterday, I was explaining basic built-in streams.  Today I’ll be covering the advanced modes.  The first thing is basic network access (http, ftp, etc).  Normally, you would just use fopen() or file_get_contents().  Well what would happen if you wanted to provide additional parameters to that call, like user agent?  Meet stream_context_create():

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Now that we’ve talked about files, it’s time to talk about directory access.  PHP has a whole variety of functions designed just for this!  Here are the important ones:

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Yesterday, I kind-of neglected to show you an example of how perform basic file access.  Today I will remedy that!  File access can be done various ways and each has its own reasons.  Here is an example of a CSV read:

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I only have one week before my certification exam!  I’m shivering in my boots (if I had boots)!  Well, the important part is not to worry and keep studying.  Here is today’s topic (and the last chapter of the book):

The streams layer is a series of classes/methods in PHP that manage the reading and writing to various data sources (file, network, compression, etc.).  Here are the basic commands you need to know regarding any stream:

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Okay, today should be the last day of Security topics (finally).  The first one we’re going to cover is:

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