Symfony Expression Language module for Laravel.
Simply update the composer.json
file and run composer install
.
"require": {
"periloso/evaluator": "1.0.*"
}
composer require "periloso/evaluator=1.0.*"
$test = [
'foo' => 10,
'bar' => 5
];
echo Evaluator::evaluate('foo > bar', $test); //this will return true
You can also save the expression rule.
$test = [
'foo' => 10,
'bar' => 5
];
Evaluator::expression()->add('test', 'foo > bar');
echo Evaluator::evaluateRule('test', $test); //this will return true
For supported expressions, visit the Symfony Expression Language Component.
Let say we want to implement 10% tax to our collection.
$item = [
'price' => 100
];
$condition = [
'target' => 'price',
'action' => '10%',
'rule' => 'price > 50'
];
Evaluator::expression()->add('tax', $condition);
$calculated = Evaluator::condition('tax', $item);
Item with multiplier.
$item = [
'price' => 50,
'quantity' => 2
];
$condition = [
'target' => 'price',
'action' => '10%',
'rule' => 'price > 50',
'multiplier' => 'quantity'
];
Evaluator::expression()->add('tax', $condition);
$calculated = Evaluator::condition('tax', $item);