当有问题要回答问题时,我试图证明这一点
当没有问题要回答时。没有问题
这是我尝试使用的代码,注释掉的行是我尝试过的 if 循环,但它总是返回 1
<?php
$dbtype = "mysql";
$dbhost = "localhost";
$dbname = "starsqa";
$dbuser = "root";
try {
$pdo_conn = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser);
} catch (PDOException $ex) {
echo $ex->getMessage();
}
$qry_string = "select * from questions inner join stars on stars.starID = questions.starID where stars.starID = ? && approved = 1 && answered = 1 && `check` = 0";
$prep = $pdo_conn->prepare($qry_string);
$starid = $_SESSION['starid'];
$prep->execute(array($starid));
//if (count($qry_string) > 0) {
//echo count($qry_string);
echo "<table style='border:0px; background-color:#8C7E6C;'><thead style='border:0px;'><tr style='border:0px solid white; background-color:#153E7E; color:white; padding: 5; margin: 5;'><th style='border:1px white; padding: 5; margin: 5;'>Question</th><th style='border:1px white; padding: 5; margin: 5;'>Response</th></tr></thead><tbody>";
while ($row = $prep->fetch(PDO::FETCH_ASSOC)) {
echo "<tr style='border:1px white; background-color:lightblue; padding: 5; margin: 5;'><td style='border:1px white; padding: 5; margin: 5;'>{$row['question']}</td>
<td style='border:1px white; padding: 5; margin: 5;'><textarea rows='4' cols='50' id='{$row['questionID']}' class='response'>{$row['response']}</textarea></td></tr>";
}
echo "</tbody></table>";
echo "<br><button type='button' class='save_btn'>Save All</button><br><br>";
//}
// if (count($qry_string) < 1) {
// echo count($qry_string);
// echo "no question to answer atm";
// }
?>
任何人都知道为什么这不起作用或其他方式来实现这一点?
它现在正在使用(感谢 showdev):
$prep->execute(array($starid));
//if (count($qry_string) > 0) {
//echo count($qry_string);
// $count= count($prep->fetchAll());
$count = $prep->rowCount();
//echo "$count";
if ($count > 0){
echo "<table style='border:0px; background-color:#8C7E6C;'><thead style='border:0px;'><tr style='border:0px solid white; background-color:#153E7E; color:white; padding: 5; margin: 5;'><th style='border:1px white; padding: 5; margin: 5;'>Question</th><th style='border:1px white; padding: 5; margin: 5;'>Response</th></tr></thead><tbody>";
while ($row = $prep->fetch(PDO::FETCH_ASSOC)) {
echo "<tr style='border:1px white; background-color:lightblue; padding: 5; margin: 5;'><td style='border:1px white; padding: 5; margin: 5;'>{$row['question']}</td>
<td style='border:1px white; padding: 5; margin: 5;'><textarea rows='4' cols='50' id='{$row['questionID']}' class='response'>{$row['response']}</textarea></td></tr>";
}
echo "</tbody></table>";
echo "<br><button type='button' class='save_btn'>Save All</button><br><br>";
}
if ($count < 1) {
echo "no question to answer atm";
}
只是想到了其他需要的东西,一旦我按下全部保存以 ajax 刷新页面并显示新的/当前信息,我将使用什么功能来做到这一点?
我做到了:-) 使用这个:location.reload();
var html = '';
$(document).ready(function(){
$(".save_btn").live('click', function() {
$('.response').each(function(){
//alert($(this).attr('id'));
//alert($(this).val());
if ($(this).val() == '') {
html = $.ajax({
url: "response.php?questionID=" + $(this).attr('id') + "&response=" + $(this).val() + "&check=0",
async: false
}).responseText;
}
if ($(this).val() !== '') {
html = $.ajax({
url: "response.php?questionID=" + $(this).attr('id') + "&response=" + $(this).val() + "&check=1",
async: false
}).responseText;
}
});
alert(html);
location.reload();
});
})