What are common issues that may arise when using PHP with frames on a website?

One common issue when using PHP with frames on a website is accessing variables between frames. To solve this, you can use session variables to pass data between frames. Another issue is maintaining session state across frames, which can be resolved by ensuring session_start() is called in each frame. Lastly, security concerns may arise when using frames, so it's important to validate and sanitize user input to prevent any vulnerabilities. 

// Pass data between frames using session variables
session_start();
$_SESSION['data'] = "Hello from frame 1";

// In frame 2
session_start();
echo $_SESSION['data'];

Keywords

Frames PHP Cross-origin Security Deprecated

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