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What are the potential pitfalls of not properly sanitizing user input in PHP when working with databases?

Not properly sanitizing user input in PHP when working with databases can lead to SQL injection attacks, where malicious users can manipulate the data...

What strategies can be employed to optimize array manipulation in PHP code?

When manipulating arrays in PHP, it's important to optimize the code for performance and efficiency. One strategy is to minimize unnecessary loops or...

What are common pitfalls when using PHP sessions to pass variables between files?

One common pitfall when using PHP sessions to pass variables between files is forgetting to start the session in each file where the session variables...

How can PHP beginners ensure the security and integrity of user data when implementing a login system?

To ensure the security and integrity of user data when implementing a login system in PHP, beginners should use prepared statements with parameterized...

How can one ensure that arrays are properly indexed and utilized in PHP scripts to avoid unexpected behavior?

To ensure that arrays are properly indexed and utilized in PHP scripts to avoid unexpected behavior, always start indexing arrays from 0, as PHP array...