Question

是否可以从数据库中检索值并将其用作当前表单中的值？例如，我有一个带有字段＆＃34; family＆＃34;这是一个文本框，可以用表中的值填充该字段＆＃34; EOI_AC_Data＆＃34;从行＆＃34; family_name＆＃34;？。有人能告诉我这是怎么可能的吗？这是我目前的代码：

<?php
$conn = mysqli_connect("localhost", "twa312", "dam6av9a");
mysqli_select_db(twa312, $conn)
or die ('Database not found ' . mysqli_error() );

$sql = "SELECT * FROM EOI_AC_Data";
$rs = mysqli_query($sql, $conn)
or die ('Problem with query' . mysqli_error());
?>

<form name="eoiform" method="POST" action="<?php echo $_SERVER["PHP_SELF"];?>" id="eoi">

<b>Student's Family Name</b> 
<br>
<input type="text" id="family" name="family" />

</form>

Answer 1

$row = mysql_fetch_array($rs); //fetches the row that was retrieved from the query;
//Check that $row actually contains something of course

然后在html中

<input type="text" id="family" name="family" value="<?php echo $row["whatever_your_table_field_name_is"];?>">

考虑使用mysqli_函数，因为mysql_是折旧的

Answer 2

是这样的：

<input type="text" id="family" name="family" value="<?php $valuefromdatabase; ?" />

检索值数据库

2 个答案: