What are some best practices for updating PHP scripts to be compatible with PHP 7?

Updating PHP scripts to be compatible with PHP 7 involves addressing deprecated features, syntax changes, and compatibility issues. Some best practices include updating to the latest PHP version, replacing deprecated functions with their alternatives, using strict typing, and handling errors more efficiently. 

// Example: Replace deprecated ereg function with preg_match
// Before: ereg('pattern', $string);
// After: preg_match('/pattern/', $string);
if (preg_match('/pattern/', $string)) {
    // do something
}

Keywords

backward compatibility deprecated functions error handling type declarations performance improvements

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