get the length of the tiles array (because in my word > game 7 played tiles mean +15 score bonus) - but that call fails for some > reason: > > # select mid, jsonb_array_length(tiles) from words_moves where gid=609; > ERROR: 22023: cannot get array length of a scalar > ...
第5行已经定义curl不是一个数组,在19行又定义为数组,php会报出这样的警告“Cannot use a scalar value as an array“。 可以在第18行定义 $curl = array()解决
第5行已经定义curl不是一个数组,在19行又定义为数组,php会报出这样的警告“Cannot use a scalar value as an array“。 可以在第18行定义 $curl = array()解决
今天在测试php程序的时候,出现了一个错误提示:Cannot use a scalar value as an array,这个错误提示前几天也出过,当时好像稍微调了一下就好了,也没深究,今天却又出现了。 不能再糊弄了,得找出原因和解决办法,于是我就去网上搜啊找啊,找了很久都没找到结果,不是网上搜不到这样的问题,而是很少有人做正面的准...
如果一个变量名(如a)已经被定义为非数组类型,例如integer,那么a可以被转为floating point、string(甚至是object类型),但不可以是数组,即a0=1;是错误的,php会报出这样的警告“Cannot use a scalar value as an array“。即使a被定义为一维数组,也不能转为高维数组。
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cannot use a scalar value as an array warning https://stackoverflow.com/questions/24693462/cannot-use-a-scalar-value-as-an-array-warning 赞
原因解释: 出现这个问题的原因在于运算优先级的问题,‘|’的元素优先级高于‘==’,所以要加括号,修改如下: #筛选10、11月的自行车数据,赋值变量为gather_customer_order_10_11 gather_customer_order_10_11=gather_customer_order[(gather_customer_order['create_year_month1']=='2019-10')|(gather_customer_...
"How to get distinct values of sharepoint column using SSRS" "Invalid namespace" when using SSMS to connect to SSRS "Subscriptions cannot be created because the credentials used to run the report are not stored, or if a linked report, the link is no longer valid" error "The Database Eng...