How to modify select in php

How to modify select in php: first open the corresponding code file; then find the select statement; finally modify the content such as "selected< ;/if>>..." can be used.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

php drop-down box modification to obtain the default value

The most troublesome thing when we are doing add, delete, modify and check is that the drop-down box has been modified. For a novice like me It’s very uncomfortable for me
When we make functions, we have to add any modifications for the user experience. I won’t go into details. Just go to

Fixed value to get the default value

<select>
		<option>selected> 0 </option>
		<option>selected> 1 </option>
		<option>selected> 2 </option>
		<option>selected> 3 </option>
		<option>selected> 4 </option>
		<option>selected> 5 </option>
		<option>selected> 6 </option>
		<option>selected> 7 </option>
		<option>selected> 8 </option>
		<option>selected> 9 </option>
		<option>selected> 10 </option>
		<option>selected> 11 </option>
		<option>selected> 12 </option></select>

value is not a numerical method

//$list为后台查到渲染到前端的值<select>
		<foreach>
			<option>
			value="{$vo.id}">{$vo.mingcheng}</option>
		</foreach></select>

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