It’s usually used to repeat a block of code a certain number of times. The For loop is a control structure that repeats a block of code as long as a condition is satisfied. Since the condition is checked at the conclusion of the loop iteration rather than at the beginning, a ( do-while loop) will only be executed once, even though the conditional expression is false. The ( while loop) differs from the do-while loop in one crucial way: for a ( while loop), the condition to be evaluated is checked at the start of each loop iteration, so the loop can never be executed if the conditional expression evaluates to null. Output:- Difference Between While and Do…While Loop
A ( do-while loop) executes a block of code once, then evaluates the condition if the condition is true, the expression is repeated as long as the given condition is true. The ( do-while loop) is a while loop variant in which the state is evaluated at the conclusion of each loop iteration. A while loop can be used to read records returned from a database query.(While loops) are used to run a block of code before a certain condition is met.They are used to continuously execute a block of code before the set condition is met. The ( while) assertion cycles around a block of code as long as the ( while) statement’s condition evaluates to true. foreach – Loops for each unit of an array across a block of code.for – Loops via a code block before a given number is reached in the counter.If the condition is true, the declaration shall be repeated until the condition stated is true. do.while – The code block running once and then is tested.while – Loops through a code block as long as the given condition is true.Four separate loop styles are supported by PHP. The fundamental concept behind a loop is to simplify repeated processes in a programmer so as to save time and effort. Loops are used again and again to run the same block of code, provided a certain requirement is fulfilled. So, we can use loops rather than applying almost identical code lines to a script.
Sometimes when you write code, you would like a number of times the block of code to run repeatedly. A Loop is an Iterative Control Structure which requires a number of times until a given condition is met to perform the same number of codes.
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