CascadiaPHP 2024


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

Phar::mapPharReads the currently executed file (a phar) and registers its manifest


final public static Phar::mapPhar(?string $alias = null, int $offset = 0): bool

This static method can only be used inside a Phar archive's loader stub in order to initialize the phar when it is directly executed, or when it is included in another script.



The alias that can be used in phar:// URLs to refer to this archive, rather than its full path.


Unused variable, here for compatibility with PEAR's PHP_Archive.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha.


PharException is thrown if not called directly within PHP execution, if no __HALT_COMPILER(); token is found in the current source file, or if the file cannot be opened for reading.


Exemplo #1 A Phar::mapPhar() example

mapPhar should be used only inside a phar's loader stub. Use loadPhar to load an external phar into memory.

Here is a sample Phar loader stub that uses mapPhar.

function __autoload($class)
'phar://me.phar/' . str_replace('_', '/', $class) . '.php';
try {
} catch (
PharException $e) {
'Cannot initialize Phar');

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User Contributed Notes 1 note

phofstetter at sensational dot ch
10 years ago
Be careful with mapPhar and opcode caches like opcache: They might cache files included by the symbolic name based on the symbolic name you give.

This becomes a problem when a server is hosting multiple different versions of a phar file all using the same symbolic name because then subsequent include()'s in the phar file might load an already cached file from another version of the phar file.

Instead, generate a unique name and use that in mapPhar and in subsequent include()'s

See for example for the issue in the opcache module.
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