今天在使用Symfony Cache时遇到一个报错：Symfony\Component\Cache\Exception\InvalidArgumentException: Cache key "xxx:xxx" contains reserved characters "{}()/\@:"，经过排查发现我的缓存key带有冒号。
根据报错信息找源头，文件vendor/symfony/cache/Traits/AbstractAdapterTrait.php第396行有如下代码：
\assert('' !== CacheItem::validateKey($key));这里有一个断言，会根据CacheItem::RESERVED_CHARACTERS(值为{}()/\@:)来判断缓存key是否合法。
通过PHP官方文档对assert的说明，发现PHP7以上版本有如下配置：
| 指令 | 默认值 | 可能值 |
|---|---|---|
| zend.assertions | 1 | 1：生成并执行代码（开发模式） 0：生成代码但在运行时跳转 -1：生成代码但在运行时跳转（生产模式） |
| assert.exception | 0 | 1：断言失败时抛出，抛出提供给 exception 的对象，或未提供 exception 时抛出新的 AssertionError 对象 0：如上所述使用/生成 Throwable，但仅仅是基于该对象生成警告而不是抛出（与 PHP 5 行为兼容） |
所以解决办法有两种：
-
修改
php.ini配置，将zend.assertions的值设置为0或-1 -
去除缓存key中的特殊符号
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