What are the potential issues when implementing multiple search functions in PHP?

One potential issue when implementing multiple search functions in PHP is naming conflicts between functions that have the same name. To solve this problem, you can use namespaces to encapsulate your functions and avoid naming collisions.

// Using namespaces to avoid naming conflicts
namespace SearchFunctions;

function searchFunction1($query) {
    // Function implementation
}

function searchFunction2($query) {
    // Function implementation
}