php - mysql类似搜索查询结果

Question

我需要知道如何显示类似的搜索查询用户名，例如是否有用户名：johnhol、_john_、donjohnqq、king_john、code_john，如果我们搜索 john，则所有以 john 开头的名称必须显示当前 iam using

$result = mysql_Query("SELECT user FROM UserData WHERE user LIKE '%$username%'") or die(mysql_error());
$fetch = mysql_num_rows($result);

但它不像我所说的那样显示，它只显示一些名称，如 _john_ ， king_john 之类的名称仅根据代码显示，所以请告诉我如何使用搜索查询进行搜索并显示 mysql 数据库中的所有起始名称。

score 0 · Accepted Answer

I *THINK* you are looking for everything which starts with $username. Is that correct? If so, then your query should only have one % at the end:

SELECT user FROM UserData WHERE user LIKE '$username%'

That will match john_glenn but not glenn_johnson.

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