Search results for: "outdated functions"

What are best practices for handling optional search criteria in PHP when constructing SQL queries for search functions?

When constructing SQL queries for search functions in PHP, it is common to have optional search criteria that may or may not be provided by the user....

Are there any potential pitfalls to be aware of when using PHP string functions to search for words?

One potential pitfall when using PHP string functions to search for words is that they are case-sensitive by default. This means that searching for a...

What are the different ways to pass variables by reference in PHP functions to avoid excessive return statements?

When passing variables by reference in PHP functions, you can use the `&` symbol before the parameter in the function definition. This allows you to m...

How can the use of isset() and empty() functions help in avoiding errors with form submissions in PHP?

When processing form submissions in PHP, it is crucial to check if the form fields are set and not empty to avoid errors. The isset() function checks...

What are the potential pitfalls of using the mktime and time functions in PHP for calculating time differences?

One potential pitfall of using the mktime and time functions in PHP for calculating time differences is that they may not account for daylight saving...