Google幻灯片API(Google Slides API)允许开发者通过编程方式操作Google幻灯片文档,例如创建、更新、删除幻灯片,插入文本、图片等元素。通过PHP调用Google幻灯片API,可以实现自动化处理幻灯片文档的功能。
以下是一个通过PHP调用Google幻灯片API进行幻灯片操作的示例代码:
<?php
require_once 'vendor/autoload.php';
// 初始化Google客户端
$client = new Google_Client();
$client->setApplicationName('Google Slides API PHP');
$client->setScopes([Google_Service_Slides::SLIDES]);
$client->setAuthConfig('credentials.json');
// 创建幻灯片服务
$service = new Google_Service_Slides($client);
// 创建新的幻灯片文档
$presentationId = 'your_presentation_id';
$requestBody = new Google_Service_Slides_Presentation([
'title' => 'New Presentation'
]);
$response = $service->presentations->create($requestBody);
echo "Created presentation with ID: " . $response->getPresentationId() . "\n";
// 插入文本到幻灯片
$requests = [
new Google_Service_Slides_Request([
'createTextbox' => new Google_Service_Slides_CreateTextboxRequest([
'elementProperties' => new Google_Service_Slides_Bound([
'leftOffset' => 100,
'topOffset' => 100,
'width' => 200,
'height' => 50
]),
'text' => 'Hello, World!'
])
])
];
$batchUpdateResponse = $service->presentations->batchUpdate($presentationId, new Google_Service_Slides_BatchUpdatePresentationRequest([
'requests' => $requests
]));
echo "Inserted text into presentation.\n";
?>
原因:频繁的重复请求可能会触发Google API的速率限制,导致请求被拒绝。
解决方法:
<?php
function retryRequest($service, $method, $args, $maxRetries = 3, $delay = 1) {
$retries = 0;
while ($retries < $maxRetries) {
try {
return call_user_func_array([$service, $method], $args);
} catch (Google_Service_Exception $e) {
if ($e->getCode() == 429 || $e->getCode() >= 500) {
sleep($delay);
$retries++;
} else {
throw $e;
}
}
}
throw new Exception("Failed after $maxRetries retries");
}
// 使用重试机制发送请求
try {
$response = retryRequest($service, 'presentations->batchUpdate', [$presentationId, $batchUpdateRequest]);
echo "Request succeeded.\n";
} catch (Exception $e) {
echo "Request failed: " . $e->getMessage() . "\n";
}
?>
通过以上方法,可以有效避免因重复请求导致的API限制问题。
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