V8Js::registerExtension

(PECL v8js >= 0.1.0)

V8Js::registerExtension — Register Javascript extensions for V8Js

说明

public static V8Js::registerExtension(
    string $extension_name,
    string $script,
    array $dependencies = array(),
    bool $auto_enable = false
): bool

Registers passed Javascript script as extension to be used in V8Js contexts.

参数

extension_name: Name of the extension to be registered.
script: The Javascript code to be registered.
dependencies: Array of extension names the extension to be registered depends on. Any such extension is enabled automatically when this extension is loaded.
注意:
All extensions, including the dependencies, must be registered before any V8Js are created which use them.
auto_enable: If set to true, the extension will be enabled automatically in all V8Js contexts.

返回值

Returns true if extension was registered successfully, false otherwise.

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dimarikson at yandex dot ru ¶

10 years ago

Usage sample:

if (V8Js::registerExtension('myjs', 'var x = 1 + 1;', array(), true) === false) {
    exit("Failed to register js extension script");
}

$v8js = new V8Js;

$jsExec = <<<EOD
x;
EOD;

echo $v8js->executeString($jsExec)."\n";    // print "2"

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Reforced ¶

5 years ago

Note that since version 2.0.0 V8Js::registerExtension is deprecated and suggests use snapshots instead https://github.com/phpv8/v8js/releases/tag/2.0.0
Simple example using snapshots and the moment.js:

<?php 
$script = file_get_contents('https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js');

$snapshot = V8Js::createSnapshot($script);
$v8 = new V8Js('php', array(), array(), true, $snapshot);

echo $v8->executeString('moment().format()');
?>

Side-note: If you value speed, security and stability do not use file_get_contents to grab external javascripts on production servers.

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备份地址：http://www.lvesu.com/blog/php/v8js.registerextension.php