Are there any security implications to be aware of when manipulating arrays in PHP?

When manipulating arrays in PHP, it is important to be cautious of potential security vulnerabilities such as injection attacks or unintended data exposure. To mitigate these risks, always validate and sanitize user input before using it to manipulate arrays. Additionally, avoid using user input directly in functions like `eval()` or `include()` to prevent code execution vulnerabilities. 

// Example of validating and sanitizing user input before manipulating arrays
$user_input = $_POST['input'];

// Validate and sanitize user input
$validated_input = filter_var($user_input, FILTER_SANITIZE_STRING);

// Manipulate array using sanitized input
$array = ['item1', 'item2', 'item3'];
$array[] = $validated_input;

Keywords

PHP arrays security implications data validation input sanitization

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