The key of an indexed array is a number, by default the first item is 0 and the second is 1 etc., but there are exceptions. New items get the next index number, ...
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How to search in an array in PHP?
The array_search() is an inbuilt function in PHP that is used to search for a particular value in an array, and if the value is found then it returns its corresponding key. If there are more than one values then the key of the first matching value will be returned.
How to get the index of an array in PHP?
We can get the array index by using the array_search() function. This function is used to search for the given element.
How to add an index in an array in PHP?
To create an indexed array using the array() function, you simply pass a comma-separated list of values to the function, enclosed in parentheses. Here is an example: This creates an indexed array called $myArray that contains four elements: "apple", "banana", "orange", and "grape".
How to convert indexed array to simple array in PHP?
Reducing a numerically indexed multi-dimensional array to a simple array can be achieved easily by means of combining array_merge() with the 'splat' ( ... ) operator.
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