It comes in two main forms: one to work with indexed arrays, and another for associative arrays. The basic syntax of a foreach loop is quite simple. Unlike other loops like for and while, foreach doesn't require any counter or index to access the elements. It provides an easier way to iterate over each element in an array. We learned about different ways to iterate over an array in PHP.PHP foreach loop is specifically designed to work with arrays. We can use it do while loop to iterate over all elements of array, till array is not empty. Basically it removes the first value and returns it. The array_shift() function accepts an array as an argument and shifts the first value of array off. In the while loop expression we will keep iterating till the each function does not returns false. It resets the internal pointer to point to first element internally. But before using while loop with each() function, we need to call the reset() function with array. Where key is the index position and value is the item at that index position in array. For this, we are going to use each() function, which returns all value sof array as the key and the value pairs. We can also use the while loop to iterate over each element of array. Check if an index exists in array in PHP.
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