How to Install the PHP SDK

Installing SDK

There are several ways for you to install our SDK and the most convenient one is to use a package manager.

Installing with Package Manager

composer

The easiest way to integrate our SDK into your project is to use composer. Run the following command to install it:

composer require leancloud/leancloud-sdk

Keep in mind that leancloud-sdk depends on the curl extension (you may need to install php-curl if you are using Linux).

Installing Manually

Download SDK

Initializing Your Project

To begin with, get your App ID and App Key from your app's Dashboard > Settings > App Keys.

Then import Client and call initialize to initialize it:

use \LeanCloud\Client;
// Provide App ID, App Key, and Master Key as parameters
Client::initialize("{{appid}}", "{{appkey}}", "{{masterkey}}");
Client::setServerUrl("{{domain}}");

Enabling Debug Logs

You can easily trace the problems in your project by turning debug logs on during the development phase. Once enabled, details of every request made by the SDK along with errors will be output to IDE, browser console, or your app's Dashboard > LeanEngine > App logs.

// Place the line after Client::initialize(); only needs to be called once
Client::setDebug(true);

Verifying

First of all, make sure you are able to connect to LeanCloud server. You can test it by running the following command:

ping "{{domain}}"

If everything goes well, you will see the following response:

PING api-ucloud.leancloud.cn (123.59.41.31): 56 data bytes
64 bytes from 123.59.41.31: icmp_seq=0 ttl=51 time=9.032 ms
64 bytes from 123.59.41.31: icmp_seq=1 ttl=51 time=7.290 ms
64 bytes from 123.59.41.31: icmp_seq=2 ttl=51 time=8.131 ms
64 bytes from 123.59.41.31: icmp_seq=3 ttl=51 time=9.689 ms
64 bytes from 123.59.41.31: icmp_seq=4 ttl=51 time=6.559 ms
64 bytes from 123.59.41.31: icmp_seq=5 ttl=51 time=8.665 ms
64 bytes from 123.59.41.31: icmp_seq=6 ttl=51 time=8.041 ms
64 bytes from 123.59.41.31: icmp_seq=7 ttl=51 time=8.203 ms
64 bytes from 123.59.41.31: icmp_seq=8 ttl=51 time=6.288 ms
64 bytes from 123.59.41.31: icmp_seq=9 ttl=51 time=7.938 ms

--- api-ucloud.leancloud.cn ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 6.288/7.984/9.689/0.997 ms

Then add the following code into your project:

$testObject = new LeanObject("TestObject");
$testObject->set("words", "Hello world!");
try {
    $testObject->save();
    echo "Object saved.";
} catch (Exception $ex) {
    echo "An error occurred.";
}

Save the file and run it.

Then go to your app's Dashboard > LeanStorage > Data > TestObject. If you see the following content, it means that you have correctly installed the SDK.

See Debugging if you're not seeing the content.

Debugging

This guide is written for the latest version of our SDK. If you encounter any error, please first make sure you have the latest version installed.

401 Unauthorized

If you get a 401 error or see the following content in network logs:

{
  "code": 401,
  "error": "Unauthorized."
}

It means that the App ID or App Key might be incorrect or don't match. If you have multiple apps, you might have used the App ID of one app with the App Key of another one, which will lead to such error.

Client Cannot Access the Internet

Make sure you have granted enough permissions for your mobile app.