Algorithm to ensure 'unique' session_id in PHP
39518
How unique is the php session id
97016
Is it okay to store session id in localStorage?
104895
How can I generate a unique, small, random, and user-friendly key?
125060
What is the most accurate way to retrieve a user's correct IP address in PHP?
36635
Are PDO prepared statements sufficient to prevent SQL injection?
54987
INT vs Unique-Identifier for ID field in database
152416
Session ID from scheduled jobs
22376
Prevent reset of auto_increment id in Innodb database after server restart
13458
How can I sanitize user input with PHP?
25703
Best way to test for a variable's existence in PHP; isset() is clearly broken
14424
What is the difference between session_unset() and session_destroy() in PHP?
53549
Unique and temporary file names in PHP?
26856
How do I specify unique constraint for multiple columns in MySQL?
38784
How to PHP server-side check if a url of a web site is valid?
45300
How to prevent duplicate usernames when people register?
110393
How to avoid duplicates while updating a MySQL database?
18721
Can I store a class instance in a $_SESSION space?