From the course: PHP Tips, Tricks, and Techniques
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Set a time limit on a session
From the course: PHP Tips, Tricks, and Techniques
Set a time limit on a session
- [David] Hi, I'm David Powers. And welcome to this week's edition of PHP Tips, Tricks, and Techniques designed to help you become a smarter, more productive PHP developer. The question I've often been asked is how to set a time limit to a session, so that's what we'll look at. The exercise files for this video contain a basic example of using sessions, with a login form, and a couple of password protected pages. Before looking at the script, let's consider why it's a good idea to set a time limit to a session. By default, PHP sessions data can be garbage collected after 24 minutes of inactivity. But PHP garbage collection is unpredictable. So session data can hang around for a long time. And because it's stored in plain text, sensitive information could be harvested by a malicious attacker, if the session isn't explicitly terminated. So let's take a look at the script now. In login.php, I've got a simple login form, and for demonstration purposes, the login script uses a fixed…
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- Tip_18.zip
- Tip_19.zip
- Tip_01.zip
- Tip_20.zip
- Tip_02.zip
- Tip_25.zip
- Tip_03.zip
- Tip_21.zip
- Tip_22.zip
- Tip_04.zip
- Tip_23.zip
- Tip_24.zip
- Tip_06.zip
- Tip_07.zip
- Tip_34.zip
- Tip_30.zip
- Tip_31.zip
- Tip_14.zip
- Tip_32.zip
- Tip_17.zip
- Tip_33.zip
- Tip_29.zip
- Tip_35.zip
- Tip_36.zip
- Tip_37.zip
- Tip_09.zip
- Tip_10.zip
- Tip_38.zip
- Tip_39.zip
- Tip_40.zip
- Tip_08.zip
- Tip_26.zip
- Tip_11.zip
- Tip_12.zip
- Tip_13.zip
- Tip_15.zip
- Tip_16.zip
- Tip_28.zip
Contents
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(Locked)
Round numbers to a specific multiple6m 57s
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Array dereferencing4m 55s
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Variable functions6m 8s
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Build nested unordered lists automatically8m 56s
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Display a repeating value only once4m 43s
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Batch convert images to data URIs8m 18s
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Multiple string replacement and SVGs8m 45s
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Prevent cross-site script attacks in forms9m 39s
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Changes to calculations with strings7m 35s
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Unpacking arrays in PHP 7.17m 46s
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User authentication with password hashing9m 20s
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Set a future date7m 40s
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Block access to expired member10m 55s
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Extract complete sentences from start of text8m 48s
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Prevent email header injection attacks7m 17s
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Variable variables6m 47s
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Select files for archiving9m 58s
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Set a time limit on a session7m 27s
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Custom sort an array with the spaceship operator7m 26s
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Understanding the splat operator8m 55s
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Converting new lines to real paragraphs7m 36s
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Introducing PHP generators9m 33s
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Dynamically editing a CSV file9m 32s
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Finding all links in a webpage7m 35s
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Creating a download link9m 45s
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Debugging PDO prepared statements5m 59s
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Time is running out for PHP 54m 43s
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Extract values with a format string9m 10s
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Generate harmonious color tones8m 7s
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Getting all possible permutations of an array5m 39s
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Merging arrays5m 57s
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Strip accents from text9m 29s
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Export associative arrays from a CSV6m 57s
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Export spreadsheet data to a multi-table database10m 38s
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Validate email address with accented characters3m 33s
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Generating random numbers and strings7m 54s
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Shorthand conditional expressions9m 9s
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Modifying each element in an array8m 36s
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Smart quotes and apostrophes7m 52s
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Shortest distance between two locations6m 55s
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