tencent cloud

All product documents
Serverless Cloud Function
DocumentationServerless Cloud FunctionCode DevelopmentPHPDevelopment Methods
Development Methods
Download PDF
Last updated: 2024-12-02 18:12:22
Development Methods
Last updated: 2024-12-02 18:12:22
Download PDF

Function Format

The PHP function format is generally as follows:
<?php
function main_handler($event, $context) {
    print_r ($event);
    print_r ($context);
    return "hello world";
}
?>

Execution Method

You need to specify the execution method when creating a SCF function. If the PHP programming language is used, the execution method is similar to index.main_handler, where index indicates that the executed entry file is index.php, and main_handler indicates that the executed entry function is main_handler.
When submitting the ZIP code package by uploading the ZIP file locally or through COS, make sure that the root directory of the ZIP package contains the specified entry file, which contains the entry function specified by the definition, file name, function name, and execution method; otherwise, execution will fail as the entry file or entry function cannot be found.

Input Parameters

The input parameters in the PHP environment include $event and $context.
$event: This parameter is used to pass the trigger event data.
$context: This parameter is used to pass runtime information to your handler.
The event parameter varies with trigger or event source. For more information on its data structure, see Trigger Overview.
Note:
The input parameters event and context in PHP 8.0, 7.4, 7.2, and 5.6 are in object format.

Response

Your handler can use return to return a value. The return value will be handled differently depending on the type of invocation when the function is invoked.
In the PHP environment, a serializable object such as dict object can be directly returned:
Sync invocation: The return value of a sync invocation will be serialized in JSON and returned to the caller for subsequent processing. The function testing in the console is sync invocation, which can capture the function’s return value and display it after the invocation is completed.
Async invocation: The return value of an async invocation will be discarded, since the invocation method responds right after the function is triggered, without waiting for function execution to complete.
Note:
The return value of both sync and async invocations will be recorded in the function logs. The return value will be written to the function invocation log SCF_Message in the format of Response RequestId:xxx RetMsg:xxx.
The value of SCF_Message is limited to 8 KB in length, and excessive parts will be truncated.

Exception Handling

You can exit the function by calling die(). At this point, the function will be marked as execution failed, and the output from the exit using die() will also be recorded in the log.
Was this page helpful?
You can also Contact Sales or Submit a Ticket for help.
Yes
No

Feedback

Contact Us

Contact our sales team or business advisors to help your business.

Contact Us
Technical Support

Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

Submit a Ticket
7x24 Phone Support
Hong Kong, China
+852 800 906 020 (Toll Free)
United States
+1 844 606 0804 (Toll Free)
United Kingdom
+44 808 196 4551 (Toll Free)
Canada
+1 888 605 7930 (Toll Free)
Australia
+61 1300 986 386 (Toll Free)
EdgeOne hotline
+852 300 80699
More local hotlines coming soon