php sort multidimensional array by key alphabetically
php sort multidimensional array by key alphabetically
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For example, I have a multidimensional array $relationshop_list, which has IDs, with sort two columns, and I want the array to be sorted in descending order of ID, sorted in sort of way:Sort$array _field = Array_column ($relationshop _list, ' sort ')
In actual development, more or less will encounter array sorting problem, in addition to the conventional write simple sorting algorithm, PHP also provides a built-in array sorting function, this time to share the key: Uasort Use user-defined
1. The concept of arrays
An array is a named range that is used to store a series of variable values.
Each array element has an associated index (also a keyword) that can be used to access elements.
PHP allows you to use numbers or strings evenly
It is very meaningful to sort the related data stored in the array. There are many functions available in PHP that can be sorted in pairs, which provide a variety of sorting methods. For example, you can pass the value of an element or a key and a
Often, developers find it useful to use this data structure in PHP to sort values or array elements. PHP provides a number of sorting functions that are suitable for multiple arrays, which allow you to arrange elements within an array, and also
The declaration of an array
1, direct assignment way to declare an array
$ array variable name [index value] = data content//The index value (subscript) can be a string or a number
But sometimes, we can also assign values directly to the array,
Often, developers find it useful to use this data structure in PHP to sort values or array elements. PHP provides some sort functions that are appropriate for a variety of arrays, which allow you to arrange elements within an array, and also allow
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