icewind/patcher

Replace build in php functions

Patcher

, _(*1)

Replace build in php functions, _(*2)

composer require icewind/patcher

Usage

Overwriting a method

use Icewind\Patcher\Patcher;

$patcher = new Patcher();
$patcher->patchMethod('time', function () {
    return 100;
});
$patcher->whiteListDirectory(__DIR__ . '/src');
$patcher->autoPatch();

include 'src/....';

Using the original method

use Icewind\Patcher\Patcher;

$patcher = new Patcher();
$patcher->patchMethod('time', function ($method, $arguments, $original) {
    $time = $original();
    error_log("Time: $time");
    return $time;
});
$patcher->whiteListDirectory(__DIR__ . '/src');
$patcher->autoPatch();

include 'src/....';

Overwriting a class

use Icewind\Patcher\Patcher;

class DummyDateTime extends DateTime {
    public function __construct() {
        parent::__construct("1970-01-01 00:00:00 UTC");
    }
}

$patcher = new Patcher();
$patcher->patchClass('\DateTime', '\DummyDateTime');
$patcher->whiteListDirectory(__DIR__ . '/src');
$patcher->autoPatch();

include 'src/....';

API

• patchMethod(string $method, callable $handler): Set the handler for a method
  • The handler will be called with the following three arguments
  • string $method the name of the method being called
  • array $arguments the arguments the method was called with
  • callable $original a closure which will call the overwriten method with the correct arguments and return the result
• patchClass(string $method, string $replacement): Overwrite a class with a different one
  • Note, at the moment this only works with classes in the global namespace
• whiteListDirectory(string $path): Add a directory to the white list for the auto patcher
• blackListDirectory(string $path): Add a directory to the black list for the auto patcher
• autoPatch(): Enable auto patching for all files included from this point
  • Automatically apply the patch methods for any namespace defined
  • Will only be applied for files within a whitelisted directory