QuickHashStringIntHash::exists
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QuickHashStringIntHash::exists — This method checks whether a key is part of the hash
说明
public QuickHashStringIntHash::exists(
string $key):
bool
This method checks whether an entry with the provided key exists in the
hash.
参数
key-
The key of the entry to check for whether it exists in the hash.
返回值
Returns true when the entry was found, or false when the entry is not
found.