How can PHP developers ensure compatibility with multiple browsers when using transition effects?

To ensure compatibility with multiple browsers when using transition effects in PHP, developers can use vendor prefixes for CSS properties that may behave differently across browsers. By including prefixes for transitions, developers can ensure that the effects work consistently across various browsers.

<style>
    .element {
        -webkit-transition: all 0.3s ease;
        -moz-transition: all 0.3s ease;
        -o-transition: all 0.3s ease;
        transition: all 0.3s ease;
    }
</style>