Therefore, you don’t need to know the number of elements in. It starts with the first element and ends with the last one. The foreach statement iterates over all elements in an array, one at a time. If outer for loop is to be executed 3 times and inner for loop for 3 times, inner for loop will be executed 9 times (3 times for 1st outer loop, 3 times for 2nd outer loop and 3 times for 3rd outer loop). PHP provides you with the foreach statement that allows you to iterate over elements of an array, either an indexed array or an associative array. Nested for loop is executed fully for one outer for loop. foreach (PHP 4, PHP 5, PHP 7, PHP 8) The foreach construct provides an easy way to iterate over arrays. We can use for loop inside for loop in PHP, it is known as nested for loop. block of code: is the piece of code that operates on the array values.But before we get too deep on the foreach loop I do think there’s value in covering how these two popular things differ. foreach 0.0032877922058105 foreach (using reference) 0.0029420852661133 for 0.0025191307067871 foreach (hash table) 0.0035080909729004 for (hash table) 0.0061779022216797 As you can see the evolution is insane, about 560 time faster than reported in 2012. PHP improves on the for loop with the foreach loop. $array_value: is the temporary variable that holds the current array item values. Anyone who’s programmed much in any language has heard of a for loop.$array_data: is the array variable to be looped through.Just Google 'php pass by reference', and everything you need to explain this to you will be there. foreach(…) : is the foreach PHP loop block code It indicates that you are passing a variable by reference.
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