array-key-exists
array_key_exists for compound key in array
How do I check to see if a compound key exists with array_key_exists such as $myarr[\'ind1\'][\'ind2\'][详细]
2023-03-30 20:33 分类：问答array_key_exists($key, $array) vs !empty($array[$key])
I\'ve seen a lot of people do the former, is there any performance benefit doing one vs the other? Or is it just an eye candy? I personally use the latter every time as it is shorter and personally mo[详细]
2023-03-23 20:16 分类：问答Why is array_key_exists 1000x slower than isset on referenced arrays?
I have found that array_key_exists is over 1000x slower than isset at check if a key is set in an array reference. Does anyone that has an understanding of how PHP is implemented explain why this is t[详细]
2023-03-12 10:52 分类：问答绿玛瑙多少钱一克啊？玛瑙多少钱一颗 绿玛瑙价格多少钱一克？
托尼SD 2022-03-20 11:06 开发者_如何转开发 这的据玛瑙的质地，质地高价格就高从几百到上千甚至上万都是有的。比如是南红玛瑙不论克卖。玛瑙和玉一样，分新料和老料。目前市场上，由于存在炒作因素，有时新料比[详细]
2022-12-28 14:50 分类：问答
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