好的,所以我试图让 ajax 发布到我的 php 文件,查找一个 mysql 字段,如果它存在 echo 'clientsuccess' 否则 echo 'Client already exists' 但是在成功函数上它返回两个值,尽管它们在一个 php if 语句。我很可能遗漏了一些非常简单的东西,但非常感谢任何帮助。
PHP:
<?php
session_start();
$clientArray = $_POST['clientArray'];
$clientArray = explode(',', $clientArray);
$count = 0;
foreach($clientArray as $clientField)
{
trim($clientField);
if(empty($clientField)) {
$clientField = '-';
}
}
$con = mysql_connect("localhost",$_SESSION['MysqlUser'],$_SESSION['MysqlPass']);
if (!$con)
{
die('Could not connect with '.$_SESSION['MysqlUser'].mysql_error());
}
mysql_select_db("smeinsti_SPW_Inventory", $con);
$checkclient = mysql_query("SELECT ClientName FROM Clients WHERE ClientName = '".$clientArray[0]."'", $con);
if(mysql_num_rows($checkclient)==0)
{
$sql="INSERT INTO Clients (`ClientName`, `PhoneNumber`, `Email`, `Address`, `OrderDate`)
VALUES
('$clientArray[0]', '$clientArray[1]', '$clientArray[2]', '$clientArray[3]', CURDATE())";
$clientArray[0] = $_SESSION['ClientName'];
echo "clientsuccess";
} else {
echo 'Client already exists';
}
?>
JS:
function NextPage()
{
var ClientData = [];
$('form#order-form.create input[type=text]').each(function() {
ClientData += $(this).val() + ',';
})
alert(ClientData);
var parameters = {
clientArray: ClientData
};
$.ajax({
type: "POST",
async:false,
url: "write_client.php",
data: parameters,
success: function(result){
var res=result;
if(res = 'clientsuccess') {
window.location = 'admin.php?id=7';
} else {
alert('Client already exists');
}
}
});
}