How can PHP developers ensure that their website remains functional even when a plugin causes issues?

When a plugin causes issues on a website, PHP developers can ensure that their website remains functional by implementing proper error handling and fallback mechanisms. This can include checking for the existence of the plugin before using its functionality, providing alternative solutions or disabling the plugin temporarily until the issue is resolved.

// Check if the plugin is active before using its functionality
if (is_plugin_active('plugin-name/plugin-name.php')) {
    // Use the plugin's functionality
} else {
    // Provide alternative solution or disable the plugin temporarily
}