How can non-static method calls in PEAR classes lead to Strict Standards warnings in PHP?

Non-static method calls in PEAR classes can lead to Strict Standards warnings in PHP because PEAR classes are designed to be used as objects, not statically. To solve this issue, you should instantiate the PEAR class as an object and then call the method on that object.

// Instantiate the PEAR class as an object
$pearObject = new PEAR_Class();

// Call the non-static method on the object
$pearObject->nonStaticMethod();