[英]Using POST to get select option value from HTML form
我有一个表格,可以获取一些不同的信息。 但是然后我有一个带有多个选项的Select,我希望能够以1或0 / true或false将其发送到数据库。 但这是行不通的。 到目前为止,这是我的代码:
<select name="multipleSelect[]" multiple>
<option value="" disabled selected>Choose your option</option>
<option name="esea" value="esea">ESEA</option>
<option name="faceit" value="faceit">FaceIT</option>
<option name="matchmaking" value="matchmaking">Matchmaking</option>
</select>
<label>What are you looking to play?</label>
这是我的PHP:
$esea = 0;
$faceit = 0;
$matchmaking = 0;
foreach ( $_POST['multipleSelect'] as $value ) {
if ( $value == 'esea' ) { $esea = 1; }
if ( $value == 'faceit' ) { $faceit= 1; }
if ( $value == 'matchmaking' ) { $matchmaking= 1; }
}
// Sätt in dataN
$sql = "INSERT INTO users ( steamid, profilename, profileurl, avatar, region, age, ranks, esea, faceit, matchmaking, textarea1 ) VALUES (
'{$mysqli->real_escape_string($_POST['steamid'])}',
'{$mysqli->real_escape_string($_POST['profilename'])}',
'{$mysqli->real_escape_string($_POST['profileurl'])}',
'{$mysqli->real_escape_string($_POST['avatar'])}',
'{$mysqli->real_escape_string($_POST['region'])}',
'{$mysqli->real_escape_string($_POST['age'])}',
'{$mysqli->real_escape_string($_POST['ranks'])}',
$esea,
$faceit,
$matchmaking',
'{$mysqli->real_escape_string($_POST['textarea1'])}')";
$insert = $mysqli->query($sql);
我知道这段代码行不通,但是我不知道该怎么做才能使其正常工作。 我不会发送1或0,具体取决于是否选择了替代项。
您的select
html标记需要具有name
属性,以便表单onSubmit发送到“后端”。
像这样:
<select name="enterNameThatMakesSense" multiple> // <----- HERE
<option value="" disabled selected>Choose your option</option>
<option name="esea" value="1">ESEA</option>
<option name="faceit" value="1">FaceIT</option>
<option name="matchmaking" value="1">Matchmaking</option>
</select>
<label>What are you looking to play?</label>
您用于多个可选下拉列表的<select>
必须是一个数组,由name="NameThatMakesSense[]"
<select name="NameThatMakesSense[]" multiple>
然后,这将返回一个名为$ _POST ['NameThatMakesSense']的字段,该字段本身是一个包含1个或多个值的数组,这些值指示下拉列表中的哪些项已被选择。 来自<option>
标记的value=""
属性
然后,您将需要预处理NameThatMakesSense
数组,以选择从多选下拉列表中实际选择的值。
$esea = 0;
$esea = 0;
$esea = 0;
foreach ( $_POST['NameThatMakesSense'] as $value ) {
if ( $value == 'esea' ) { $esea = 1; }
if ( $value == 'faceit' ) { $faceit= 1; }
if ( $value == 'matchmaking' ) { $matchmaking= 1; }
}
$sql = "INSERT INTO users
( profilename, profileurl, avatar, region,
age, esea, faceit, matchmaking, textarea1 )
VALUES (
'{$mysqli->real_escape_string($_POST['profilename'])}',
'{$mysqli->real_escape_string($_POST['profileurl'])}',
'{$mysqli->real_escape_string($_POST['avatar'])}',
'{$mysqli->real_escape_string($_POST['region'])}',
'{$mysqli->real_escape_string($_POST['age'])}',
'{$mysqli->real_escape_string($_POST['ranks'])}',
$esea,
$faceit,
$matchmaking,
'{$mysqli->real_escape_string($_POST['textarea1'])}')";
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