这是对我们在另一个答案中的评论历史的回复。
@erfanMHD,有很多方法可以真正做到这一点。您不必在 javascript 中执行此操作。这实际上并不是某人可以为您提供简单代码片段的东西,因为它需要一些额外的东西,并且在 StackOverflow 中通常不受欢迎。
您需要在某个地方存储您上次撰写的评论的应用程序的 localVersion。在下面我编写的示例中,我使用了一个简单的 MySQL 数据库来保存本地版本。您还需要弄清楚如何显示数据。我知道您可以向 wordpress 仪表板添加内容,但这不是我们可以通过 StackOverflow 向您展示如何做的事情。
但是,下面是一个非常简单(仅供参考)的目的,仅用于说明如何实现您想要做的事情。但是,这只是指导您完成此过程的一个示例。
对于这个演示,您需要一个 DBName 为 test 的 MySQL 数据库,并创建一个名为 application_version 的 3 行记录。ID、名称、版本。
<?php
$servername = "localhost"; // Your MySQL Server
$username = "root"; // Your MySQL Username
$password = "password"; // Your MySQL Password
$dbname = "test"; // The name of your MySQL database
$id = "904280696"; // The ID of the applicaiton you're wanting to check
function search($searchTerm){
// Construct our API / web services lookup URL.
$url = 'https://itunes.apple.com/lookup?id=' . urlencode($searchTerm);
// Use file_get_contents to get the contents of the URL.
$result = file_get_contents($url);
// If results are returned.
if($result !== false){
// Decode the JSON result into an associative array and return.
return json_decode($result, true);
}
// If we reach here, something went wrong.
return false;
}
function updateVersion($id, $name, $version) {
// Create MySQL connection
$conn = new mysqli($GLOBALS['servername'], $GLOBALS['username'], $GLOBALS['password'], $GLOBALS['dbname']);
// Check MySQL connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// Save the Version information
$sql = "UPDATE application_version SET name='" . $name . "', version='" . $version . "' WHERE id='" . $id . "'";
echo $sql;
echo "<br>";
// Run the Insert into MySQL
if ($conn->query($sql) === TRUE) {
// Print On Success
echo "Record Updated Successfully";
echo "<br>";
} else {
// We dun goofed
echo "Error: " . $sql . "<br>" . $conn->error;
echo "<br>";
}
$conn->close();
}
function getLocalVersion($id) {
// Create MySQL connection
$conn = new mysqli($GLOBALS['servername'], $GLOBALS['username'], $GLOBALS['password'], $GLOBALS['dbname']);
// Check MySQL connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM application_version WHERE ID = " . $GLOBALS['id'];
$result = $conn->query($sql);
if ($result->num_rows > 0) {
echo "Found Application ID Entry in database";
echo "<br>";
echo "<table><tr><th>ID</th><th>Name</th><th>Version</th></tr>";
// output data of each row
while($row = $result->fetch_assoc()) {
echo "<tr><td>".$row["id"]."</td><td>".$row["name"]."</td><td>".$row["version"]."</td></tr>";
$GLOBALS['storedVersion'] = $row["version"];
}
echo "</table>";
echo "<br>";
} else {
echo "No Application ID Entry found in database";
echo "<br>";
}
$conn->close();
}
// Search for your requested ID
$searchResults = search($GLOBALS['id']);
$currentVersion = '0.0.0';
$storedVersion = '0.0.0';
$appName = 'null';
// Loop through the results.
foreach($searchResults['results'] as $result){
// Pass the current version to variable
$currentVersion = $result['version'];
$appName = $result['trackName'];
// Get the current version or what ever else information you need
echo 'Current Version: ' . $currentVersion;
echo "<br>";
echo "<br>";
}
// Get Local Version from database
getLocalVersion($id);
if ($currentVersion > $storedVersion) {
echo "You have an old version friend";
echo "<br>";
// Write what you want it to do here
updateVersion($id, $appName, $currentVersion);
} else {
echo "You're all up to date";
echo "<br>";
// Write what you don't want it to do here
}
?>
同样,这又快又脏。你会想做很多额外的检查和平衡。我立即看到的一个将在插入检查中。