Search results for: "PHP common mistakes"

What are common mistakes when passing form data to PHP scripts and how can they be avoided?

Common mistakes when passing form data to PHP scripts include not properly sanitizing user input, not validating input data, and not using secure meth...

What are common mistakes to avoid when using fwrite() in PHP to save data to a file?

Common mistakes to avoid when using fwrite() in PHP to save data to a file include not checking if the file is successfully opened, not handling error...

What are common mistakes when using isset() in PHP and how can they be avoided?

Common mistakes when using isset() in PHP include not checking if the variable is set before using it, not using isset() properly in conditional state...

What are common mistakes to avoid when inserting data into a MySQL database using PHP forms?

Common mistakes to avoid when inserting data into a MySQL database using PHP forms include not sanitizing user input, not using prepared statements to...

What are common mistakes when using HTML select in PHP and how can they be avoided?

Common mistakes when using HTML select in PHP include not properly populating the options with data from a database or other source, not setting the s...