IXR_Server::serve( $data = false )

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$dataoptional

Default: false

Performance profile

How much work a call to IXR_Server::serve() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reads or writes the filesystem via file_get_contents().

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

45–83

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 83.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• filesystemfilesystem accessfile_get_contents()called directly
• hookthird-party callbacksapply_filters()one call below IXR_Server::serve()

What one call costs · 24 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost IXR_Server::serve() can have, taken from its control-flow graph on PHP 8.5.

Uses · 6

• status_header()Sets HTTP status header.
• IXR_Message::__construct()PHP5 constructor.
• IXR_Server::error()
• IXR_Server::call()
• IXR_Value::__construct()PHP5 constructor.
• IXR_Server::output()

Used by · 1

• IXR_Server::__construct()PHP5 constructor.

Source code

View on Trac ↗View on GitHub ↗

38    function serve($data = false)39    {40        if (!$data) {41            if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] !== 'POST') {42                if ( function_exists( 'status_header' ) ) {43                    status_header( 405 ); // WP #2098644                    header( 'Allow: POST' );45                }46                header('Content-Type: text/plain'); // merged from WP #909347                die('XML-RPC server accepts POST requests only.');48            }49 50            $data = file_get_contents('php://input');51        }52        $this->message = new IXR_Message($data);53        if (!$this->message->parse()) {54            $this->error(-32700, 'parse error. not well formed');55        }56        if ($this->message->messageType != 'methodCall') {57            $this->error(-32600, 'server error. invalid xml-rpc. not conforming to spec. Request must be a methodCall');58        }59        $result = $this->call($this->message->methodName, $this->message->params);60 61        // Is the result an error?62        if (is_a($result, 'IXR_Error')) {63            $this->error($result);64        }65 66        // Encode the result67        $r = new IXR_Value($result);68        $resultxml = $r->getXml();69 70        // Create the XML71        $xml = <<<EOD72<methodResponse>73  <params>74    <param>75      <value>76      $resultxml77      </value>78    </param>79  </params>80</methodResponse>81 82EOD;83      // Send it84      $this->output($xml);85    }

Changelog

Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.9.7 tag, from src/wp-includes/IXR/class-IXR-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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