看了一下路由实现 about easy-php HOT 5 CLOSED

$routeLookup = [];
$index = 1;
$regexes = array_keys($this->methodToRegexToRoutesMap[$httpMethod]);
foreach ($regexes as $regex) {
    $routeLookup[$index] = [
        $this->methodToRegexToRoutesMap[$httpMethod][$regex]->handler,
        $this->methodToRegexToRoutesMap[$httpMethod][$regex]->variables,
    ];
    $index += count($this->methodToRegexToRoutesMap[$httpMethod][$regex]->variables);
}
$regexCombined = '~^(?:' . implode('|', $regexes) . ')$~';
if(!preg_match($regexCombined, $uri, $matches)) {
    return [self::NOT_FOUND];
}
for ($i = 1; '' === $matches[$i]; ++$i);
list($handler, $varNames) = $routeLookup[$i];
$vars = [];
foreach ($varNames as $varName) {
    $vars[$varName] = $matches[$i++];
}
return [self::FOUND, $handler, $vars];