ミニプログラム開発におけるPHPページのアニメーションとエフェクトの実装

.fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.fade-out {
    opacity: 1;
    animation: fadeOut 1s forwards;
}

@keyframes fadeOut {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

.scale-in {
    transform: scale(0);
    animation: scaleIn 1s forwards;
}

@keyframes scaleIn {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

.scale-out {
    transform: scale(1);
    animation: scaleOut 1s forwards;
}

@keyframes scaleOut {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(0);
    }
}

.rotate {
    animation: rotate 1s infinite linear;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

<?php
// 根据条件控制CSS类名
if ($showAnimation) {
    $className = 'fade-in';
} else {
    $className = 'fade-out';
}
?>

<div class="<?php echo $className; ?>">
    这是一个通过PHP控制的CSS动画效果
</div>

<?php
// 根据条件控制动画效果类型
if ($animationType === 'scale') {
    $className = 'scale-in';
} else if ($animationType === 'rotate') {
    $className = 'rotate';
} else {
    $className = '';
}
?>

<div id="animation" class="<?php echo $className; ?>">
    这是一个通过PHP和JavaScript控制的页面动画效果
</div>

<script>
    var animationElement = document.getElementById('animation');
    var animationType = '<?php echo $animationType; ?>';

    // 根据动画类型添加相应的CSS类名
    if (animationType === 'scale') {
        window.setTimeout(function() {
            animationElement.classList.add('scale-out');
        }, 2000);
    } else if (animationType === 'rotate') {
        window.setInterval(function() {
            animationElement.classList.toggle('rotate');
        }, 1000);
    }
</script>