动态地在PHP中创建一个下拉列表，从一系列的数字*中增加*。

I need to dynamically create in PHP a drop-down list of numerical choices like so:

我需要在PHP中动态创建一个数字选择的下拉列表，如下所示:

<select>
<option value="120">120 cm</option>
<option value="121">121 cm</option>
<option value="122">122 cm</option>
<option value="123">123 cm</option>
<option value="etc...
</select>

I would like to only specify the starting and ending numbers.

我只想指定开始和结束的数字。

Thanks for any help.

感谢任何帮助。

2 个解决方案

#1

echo "<select>";
$range = range(120,130);
foreach ($range as $cm) {
  echo "<option value='$cm'>$cm cm</option>";
}
echo "</select>";

The range() function can handle all of the situations you described in the comment.

range()函数可以处理注释中描述的所有情况。

range(30.5, 50.5, 0.5); // 30.5, 31, 31.5, 32, etc

range(30, 50, 2); // 30, 32, 34, 36, 38, 40 etc

#2

Also:

另外:

echo "<select>";
for ($cm = 120; $cm <= 130; $cm++) echo "<option value='$cm'>$cm cm</option>";
echo "</select>";