What are the common pitfalls of using the "Register-Global" feature in PHP scripts?

Using the "Register-Global" feature in PHP scripts can lead to security vulnerabilities as it allows external variables to overwrite local variables. This can potentially lead to malicious code injection and unexpected behavior in the script. To solve this issue, it is recommended to disable the "Register-Global" feature and instead use superglobal arrays like $_GET, $_POST, and $_SESSION to access external variables. 

// Disable the Register-Global feature in PHP
ini_set('register_globals', 0);

Keywords

register_globals security vulnerability variable scope global variables deprecated feature

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