library callbacks {🖫 26, ⚐ 5, ★ 0}

actualwave/callbacks

Family of callback wrappers with shared interface

Wednesday, January 6, 2016
by a_[w]
Repository
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26 Installations

PHP
1 Dependents
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The README.md

PHP-Callbacks

, _(*1)

, _(*2)

Family of Callback Wrappers allowing to store chains of delayed calls that can be started by event. * FunctionCallback - calls global function or static method. * MethodCallback - calls instance or static method. * OutputCallback - outputs all arguments in JSON format. * PropertyCallback - stores first argument as property value, works with static properties. * VariableCallback - stores first argument as variable value, works with static properties. * CallableQueue - calls stored callbacks passing previous result as argument, returns result of last callback. * CallableSequence - calls stored callbacks with same arguments, returns result of last callback., _(*3)

$variable = 'value';
$callback = new \aw\callbacks\VariableCallback('variable');
$callback('new value');
echo $variable.PHP_EOL; // new value

function doEcho($param){
  echo 'My name is: '.$param.PHP_EOL;
}

$callback = new \aw\callbacks\FunctionCallback('doEcho');
$callback('####'); // My name is: ####

Installation

Via composer, _(*4)

composer require actualwave/callbacks

Usage

All wrappers are callables, so can be used directly as closure. CallableCollection accepts any callable including PHP closures., _(*5)

function multiply4($value){
  return $value*4;
}

$collection = new \aw\CallableQueue();
$collection[] = function($value){
  return $value*2;
};
$collection[] = function($value){
  return $value*3;
};
$collection[] = new \aw\callbacks\FunctionCallback('multiply4');
echo 'Result: '.$collection(2).PHP_EOL; // Result: 48