PHP foreach备用语法

问题描述

我正在从"Murach PHP and MySQL 2nd Edition"一书中学习PHP，并且遇到了我不完全理解的这段代码...

I am learning PHP from the book "Murach PHP and MySQL 2nd Edition" and I came across this code which I don't fully understand...

<select name="productkey">
     <?php foreach ($products as $key => $product):
            $cost = number_format($product['cost'], 2);
            $name = $product['name'];
            $item = $name . ' ($)' . $cost . ')';
     ?>
     <option value="<?php echo $key; ?>"> <?php echo $item; ?></option>

     <?php endforeach; ?>
</select>

为什么在foreach循环开始时在冒号(:)后面有指令?

Why are there instructions after the colon (:) at the start of the foreach loop??

我读到冒号后面应该有?>"，然后是要执行的指令，然后在"末尾标记foreach循环的结尾...

I read that after the colon there should be "?>" and then the instructions to execute and then at end "" to mark the end of the foreach loop...

请对此进行解释，并且如果我在<?php foreach ($products as $key => $product): ?>之后写以$ cost，$ name和$ item开头的行，代码仍然可以正常工作吗?

Please explain this AND IF I WRITE THE LINES STARTING WITH $cost,$name and $item after <?php foreach ($products as $key => $product): ?> would the code still work???

推荐答案

是的，它仍然可以工作:与{相同，但是您必须在foreach的末尾写endforeach，它做同样的事情.页 文档

yes it would still work : is the same as { but you have to write endforeach at the end of your foreach it does the same thing more info check out this page documentation

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