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 access array index in PHP?
PHP Accessing Array Values
In PHP, the individual elements in an array can be accessed using the array variable's name, and the location index surrounded by square brackets [] . Remember that in PHP the location index starts at zero.
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 do you access array elements using indexes?
To access an element in an array, you can use square brackets ( [] ) with the index of the element you want to access. The index starts at 0 for the first element in the array and increments by 1 for each subsequent element.
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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