Introduction

COS SDK for PHP provides the API for getting the presigned URL for a request. Please see the examples below.

Generating Pre-signed URL with Permanent Key

Examples for Upload Requests

$secretId = "COS_SECRETID"; //Replace with your permanent key’s SecretId
$secretKey = "COS_SECRETKEY"; //Replace with your permanent key’s SecretKey
$region = "ap-beijing"; // Set a default bucket region
$cosClient = new Qcloud\Cos\Client(
   array(
       'region' => $region,
       'schema' => 'https', // Protocol header; http by default
       'credentials'=> array(
           'secretId'  => $secretId ,
           'secretKey' => $secretKey)));
### Get pre-signed URL for simple upload
try {
   $signedUrl = $cosClient->getPreSignedUrl('putObject', array(
       'Bucket' => "examplebucket-1250000000", //Bucket in the format of BucketName-APPID
       'Key' => "exampleobject", //Location of the object in the bucket, i.e., the object key
       'Body' => 'string' //It can be empty or any string.
   ), '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo ($signedUrl);
} catch (\Exception $e) {
   // Request failed
   echo($e);
}
### Get pre-signed URL for multipart upload
try {
   $signedUrl = $cosClient->getPreSignedUrl('uploadPart', array(
           'Bucket' => "examplebucket-1250000000", //Bucket in the format of BucketName-APPID
           'Key' => "exampleobject", //Location of the object in the bucket, i.e., the object key
           'UploadId' => 'string',
           'PartNumber' => '1',
           'Body' => 'string'), '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo ($signedUrl);
} catch (\Exception $e) {
   // Request failed
   echo($e);
}

Examples for Download Requests

$secretId = "COS_SECRETID"; //Replace with your permanent key’s SecretId
$secretKey = "COS_SECRETKEY"; //Replace with your permanent key’s SecretKey
$region = "ap-beijing"; //Set a default bucket region
$cosClient = new Qcloud\Cos\Client(
   array(
       'region' => $region,
       'schema' => 'https', //Protocol header; http by default
       'credentials'=> array(
           'secretId'  => $secretId,
           'secretKey' => $secretKey)));
### Get pre-signed URL for simple download
try {
   $signedUrl = $cosClient->getPreSignedUrl('getObject', array(
       'Bucket' => "examplebucket-1250000000", //Bucket in the format of BucketName-APPID
       'Key' => "exampleobject", //Location of the object in the bucket, i.e., the object key
       ), '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo ($signedUrl);
} catch (\Exception $e) {
   // Request failed
   echo($e);
}
### Get the download signature with the encapsulated getObjectUrl
try {    
   $bucket = "examplebucket-1250000000"; // Bucket in the format of BucketName-APPID
   $key = "exampleobject"; //Location of the object in the bucket, i.e., the object key
   $signedUrl = $cosClient->getObjectUrl($bucket, $key, '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo $signedUrl;
} catch (\Exception $e) {
   // Request failed
   print_r($e);
}

Generating Pre-signed URL with Temporary Key

Examples for Upload Requests

$tmpSecretId = "COS_SECRETID"; //Replace with your temporary key’s SecretId
$tmpSecretKey = "COS_SECRETKEY"; //Replace with your temporary key’s SecretKey 
$tmpToken = "COS_TOKEN"; //Replace with your temporary token
$region = "ap-beijing"; // Set a default bucket region
$cosClient = new Qcloud\Cos\Client(
   array(
       'region' => $region,
       'schema' => 'https', // Protocol header; http by default
       'credentials'=> array(
           'secretId'  => $tmpSecretId,
           'secretKey' => $tmpSecretKey,
           'token' => $tmpToken)));
### Get pre-signed URL for simple upload
try {
   $signedUrl = $cosClient->getPreSignedUrl('putObject', array(
       'Bucket' => "examplebucket-1250000000", //Bucket in the format of BucketName-APPID
       'Key' => "exampleobject", //Location of the object in the bucket, i.e., the object key
       'Body' => 'string'), '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo ($signedUrl);
} catch (\Exception $e) {
   // Request failed
   echo($e);
}
### Get pre-signed URL for multipart upload
try {
   $signedUrl = $cosClient->getPreSignedUrl('uploadPart', array(
       'Bucket' => "examplebucket-1250000000", //Bucket in the format of BucketName-APPID
       'Key' => "exampleobject", //Location of the object in the bucket, i.e., the object key
       'UploadId' => '',
       'PartNumber' => '1',
       'Body' => ''), '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo ($signedUrl);
} catch (\Exception $e) {
   // Request failed
   echo($e);
}

Examples for Download Requests

$tmpSecretId = "COS_SECRETID"; //Replace with your temporary key’s SecretId
$tmpSecretKey = "COS_SECRETKEY"; //Replace with your temporary key’s SecretKey
$tmpToken = "COS_TOKEN"; //Replace with your temporary token
$region = "ap-beijing"; // Set a default bucket region
$cosClient = new Qcloud\Cos\Client(
   array(
       'region' => $region,
       'schema' => 'https', // Protocol header; http by default
       'credentials'=> array(
           'secretId'  => $tmpSecretId,
           'secretKey' => $tmpSecretKey,
           'token' => $tmpToken)));
### Get pre-signed URL for simple download
try {
   $signedUrl = $cosClient->getPreSignedUrl('getObject', array(
       'Bucket' => "examplebucket-1250000000", //Bucket in the format of BucketName-APPID
       'Key' => "exampleobject" //Location of the object in the bucket, i.e., the object key
   ), '+10 minutes'); //Validity period of the signature
   // Request succeeded
   echo ($signedUrl);
} catch (\Exception $e) {
   // Request failed
   echo($e);
}
### Get the download signature with the encapsulated getObjectUrl
try {    
   $bucket = "examplebucket-1250000000"; // Bucket in the format of BucketName-APPID
   $key = "exampleobject"; //Location of the object in the bucket, i.e., the object key
   $signedUrl = $cosClient->getObjectUrl($bucket, $key, '+10 minutes'); // Validity period of the signature
   // Request succeeded
   echo $signedUrl;
} catch (\Exception $e) {
   // Request failed
   print_r($e);
}