PHP Conference Nagoya 2025

Phar::getStub

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 1.0.0)

Phar::getStubReturn the PHP loader or bootstrap stub of a Phar archive

Description

public Phar::getStub(): string

Phar archives contain a bootstrap loader, or stub written in PHP that is executed when the archive is executed in PHP either via include:

<?php
include 'myphar.phar';
?>
or by simple execution:
php myphar.phar

Parameters

This function has no parameters.

Return Values

Returns a string containing the contents of the bootstrap loader (stub) of the current Phar archive.

Errors/Exceptions

Throws RuntimeException if it is not possible to read the stub from the Phar archive.

Examples

Example #1 A Phar::getStub() example

<?php
$p
= new Phar('/path/to/my.phar', 0, 'my.phar');
echo
$p->getStub();
echo
"==NEXT==\n";
$p->setStub("<?php
function __autoload(
$class)
{
include 'phar://' . str_replace('_', '/',
$class);
}
Phar::mapPhar('myphar.phar');
include 'phar://myphar.phar/startup.php';
__HALT_COMPILER(); ?>"
);
echo
$p->getStub();
?>

The above example will output:

<?php __HALT_COMPILER(); ?>
==NEXT==
<?php
function __autoload($class)
{
    include 'phar://' . str_replace('_', '/', $class);
}
Phar::mapPhar('myphar.phar');
include 'phar://myphar.phar/startup.php';
__HALT_COMPILER(); ?>

See Also

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