我遇到的问题是让 preg_match 对从我的表单返回的数组正常工作。
<input type="checkbox" name="receiver-check[]" class="checkbox-id" value="Username 1 (123)">
<input type="checkbox" name="receiver-check[]" class="checkbox-id" value="Username 2 (456)">
<input type="checkbox" name="receiver-check[]" class="checkbox-id" value="Username 3 (789)">
所以我希望对通过我的表单收到的值使用 preg_match。 这就是我的使用方式。
$msg_receivers = !empty($_POST['receiver-check']) && is_array($_POST['receiver-check']) ? $_POST['receiver-check'] : array();
$receiverIds = array();
foreach($msg_receivers as $receiver) {
$receiverIds[] = preg_replace('/\((\d+)\)$/', "$1", $receiver);
}
$number_of_receivers = count($receiverIds);
$while_count = 0;
while($number_of_receivers >= ($while_count + 1)){
$sql = <<< EOF
INSERT INTO private_messages (
message_subject,
message_content,
message_deliver,
message_receive,
message_status,
message_datetime,
message_to_stab
)VALUES
(?,?,?,?,'2',?,?);
EOF;
$stmt = $mysqli->prepare($sql) or die ("Feil i database<br>" . $sql . "<br><b>Feilmelding:</b> " . $mysqli->error);
$stmt->bind_param("ssiiii",$message_subject,$message_content, $_SESSION['user_id'],$receiverIds[$while_count],$message_datetime,$message_to_stab);
$stmt->execute() or die("noe gikk galt");
$msg_num_rows = $stmt->num_rows;
if($msg_num_rows = 0){
$msg = "Feilmelding: Klarte ikke å sende meldingen.";
}
else{
$msg = "Meldingen har blitt sendt.";
}
$stmt->free_result();
$stmt->close();
$while_count ++;
}
然后我使用 $msg_receiver_query
在 while 循环内的查询中分配一个值。
我目前在我的数据库中收到的是 0 和 1。没有别的。正确的 preg_match
是什么让我只输出括号内的数字?我的这个问题有没有更有效的解决方案?
最佳答案
看起来您不想匹配,您只想提取每个 $_POST['receiver-check']
值的一部分 - 所以 preg_replace()
将是正确的函数。
$msg_receivers = !empty($_POST['receiver-check']) && is_array($_POST['receiver-check'])
? $_POST['receiver-check'] : array();
$receiverIds = array();
foreach($msg_receivers as $receiver) {
$receiverIds[] = preg_replace('/^.*\((\d+)\)$/', "$1", $reciever);
}
这应该会为您提供一组接收者 ID($receiverIds),例如:
array(
[0] => 123,
[1] => 456,
[2] => 789
);
关于php - 在 POST 复选框值的数组上使用 preg_match,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31158653/