Question

<?php 
$x = 1; 

while($x <= 17) { 

switch($x) { 
    case 1: $sdg_text = "End poverty in all its forms everywhere"; 
    case 2: $sdg_text = 'End hunger, achieve food security and improved nutrition and promote sustainable agriculture'; 
    case 3: $sdg_text = "Ensure healthy lives and promote well-being for all at all ages"; 
    default: echo ''; 
} 
?> 
    <div class='grid-20 mobile-grid-100'> 
     <ul class="img-list"> 
      <li> 
       <a> 
        <img src="<?php echo get_template_directory_uri(); ?>/img/sdg/sdg<?php echo $x?>.svg" /> 
        <span class="text-content"><span><?php echo $sdg_text; ?></span></span> 
       </a> 
      </li> 
     </ul> 
    </div> 
<?php $x++ ?> 
<?php } //End of While ?> 

嘿大家，

我现在有一组列为SDG1，SDG2 ... SDG17图像的每个图像将有你悬停文字。我正在复制sustainable development in the UN website.

而不是一遍又一遍地复制div，我认为将它放在while循环中并在while循环中，有一个开关循环，可以根据大小写回显文本。现在，它只会回显默认值。

预先感谢您。

Answer 1

你应该每种情况下

switch($x) { 
case 1: 
    $sdg_text = "End poverty in all its forms everywhere"; 
    break; 
case 2: 
    $sdg_text = 'End hunger, achieve food security and improved nutrition and promote sustainable agriculture'; 
    break; 
case 3: 
    $sdg_text = "Ensure healthy lives and promote well-being for all at all ages"; 
    break; 
default: echo ''; 
break; 
} 

Answer 2

其实它只是一个简单的错误之后添加适当的休息。问题是你不使用break;。在每种情况下（默认情况下），您必须添加break;。

如果您没有在案例的语句 列表末尾写入break语句，PHP将继续执行以下情况的语句。