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在PHP中,cURL是一个强大的工具,用于发送和接收HTTP请求。以下是一些cURL的高级用法:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://example.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'X-Custom-Header: CustomValue',
'Authorization: Bearer YOUR_ACCESS_TOKEN'
));
$response = curl_exec($ch);
curl_close($ch);
CURLOPT_FOLLOWLOCATION
选项:$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://example.com/redirect');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0); // 禁用重定向
$response = curl_exec($ch);
curl_close($ch);
CURLOPT_POSTFIELDS
选项发送数据:$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://example.com/api');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($_POST));
$response = curl_exec($ch);
curl_close($ch);
CURLOPT_UPLOAD
选项,并通过CURLOPT_POSTFIELDS
发送文件数据:$ch = curl_init();
$filePath = '/path/to/your/file.txt';
$fileName = basename($filePath);
curl_setopt($ch, CURLOPT_URL, 'https://example.com/upload');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, new CURLFile($filePath, 'text/plain', $fileName));
$response = curl_exec($ch);
curl_close($ch);
CURLOPT_TIMEOUT
选项设置请求的超时时间(以秒为单位):$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://example.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 5); // 设置超时为5秒
$response = curl_exec($ch);
curl_close($ch);
json_decode
函数将响应数据转换为PHP对象或数组:$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.example.com/data');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);
curl_close($ch);
$data = json_decode($response, true); // 将第二个参数设置为true以将结果转换为关联数组
$urls = [
'https://example.com/request1',
'https://example.com/request2',
'https://example.com/request3'
];
$mh = curl_multi_init();
$ch = [];
foreach ($urls as $i => $url) {
$ch[$i] = curl_init($url);
curl_setopt($ch[$i], CURLOPT_RETURNTRANSFER, 1);
curl_multi_add_handle($mh, $ch[$i]);
}
$stillRunning = null;
do {
curl_multi_exec($mh, $stillRunning);
} while ($stillRunning > 0);
foreach ($ch as $curl) {
$response = curl_multi_getcontent($curl);
echo "Response from $url: $response\n";
curl_multi_remove_handle($mh, $curl);
curl_close($curl);
}
curl_multi_close($mh);
这些只是cURL的一些高级用法。cURL提供了许多其他选项和功能,可以根据需要进行配置和使用。
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