GearmanClient::addTaskBackground
GearmanClient::addTaskHighBackground
GearmanClient
PHP Manual

# GearmanClient::addTaskHigh

(PECL gearman >= 0.5.0)

GearmanClient::addTaskHigh — Add a high priority task to run in parallel

### Beschreibung

public GearmanTask GearmanClient::addTaskHigh ( string `$function_name` , string `$workload` [, mixed `&$context` [, string `$unique` ]] )

Adds a high priority task to be run in parallel with other tasks. Call this method for all the high priority tasks to be run in parallel, then call GearmanClient::runTasks to perform the work. Tasks with a high priority will be selected from the queue before those of normal or low priority.

### Parameter-Liste

`function_name`

  Die registrierte Funktion, die der Worker ausführen soll

`workload`

  Serialisierte Daten, die verarbeitet werden sollen

`context`

  Der Anwendungskontext der mit einem Task verknüpft werden soll

`unique`

  Eine eindeutige ID, die einen bestimmten Task identifiziert

### Rückgabewerte

A GearmanTask object or `FALSE` if the task could not be added.

### Beispiele

Beispiel #1 A high priority task along with two normal tasks

A high priority task is included among two other tasks. A single worker is available, so that tasks are run one at a time, with the high priority task run first.

`<?php
# create the gearman client
$gmc= new GearmanClient();
# add the default job server
$gmc->addServer();
# set the callback for when the job is complete
$gmc->setCompleteCallback("reverse_complete");
# add tasks, one of which is high priority
$task= $gmc->addTask("reverse", "Hello World!", null, "1");
$task= $gmc->addTaskHigh("reverse", "!dlroW olleH", null, "2");
$task= $gmc->addTask("reverse", "Hello World!", null, "3");
if (! $gmc->runTasks())
{
echo "ERROR " . $gmc->error() . "\n";
exit;
}
echo "DONE\n";
function reverse_complete($task)
{
echo "COMPLETE: " . $task->unique() . ", " . $task->data() . "\n";
}
?>`

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

    COMPLETE: 2, Hello World!
    COMPLETE: 3, !dlroW olleH
    COMPLETE: 1, !dlroW olleH
    DONE

### Siehe auch

- GearmanClient::addTask - Add a task to be run in parallel
- GearmanClient::addTaskLow - Add a low priority task to run in parallel
- GearmanClient::addTaskBackground - Add a background task to be run in parallel
- GearmanClient::addTaskHighBackground - Add a high priority background task to be run in parallel
- GearmanClient::addTaskLowBackground - Add a low priority background task to be run in parallel
- GearmanClient::runTasks - Run a list of tasks in parallel

GearmanClient::addTaskBackground
GearmanClient::addTaskHighBackground
GearmanClient
PHP Manual