Do while and while do loop with an example in PHP?
The PHP do-while loop is guaranteed to run at least once. The PHP do-while loop is used to execute a set of code of the program several times….Difference between while and do-while loop.
while Loop | do-while loop |
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This loop does not use a semicolon to terminate the loop. | Do-while loop use semicolon to terminate the loop. |
What is do while in PHP?
The do… while loop – Loops through a block of code once, and then repeats the loop as long as the specified condition is true.
Do while vs while loop PHP?
The main difference from regular while loops is that the first iteration of a do-while loop is guaranteed to run (the truth expression is only checked at the end of the iteration), whereas it may not necessarily run with a regular while loop (the truth expression is checked at the beginning of each iteration, if it …
Do while loops syntax?
Syntax. do { statement(s); } while( condition ); Notice that the conditional expression appears at the end of the loop, so the statement(s) in the loop executes once before the condition is tested. If the condition is true, the flow of control jumps back up to do, and the statement(s) in the loop executes again.
What is while and do-while loop?
While loop checks the condition first and then executes the statement(s), whereas do while loop will execute the statement(s) at least once, then the condition is checked. While loop is entry controlled loop whereas do while is exit controlled loop.
Do while and while do?
KEY DIFFERENCES: While loop checks the condition first and then executes the statement(s), whereas do while loop will execute the statement(s) at least once, then the condition is checked. While loop is entry controlled loop whereas do while is exit controlled loop.
How can I print prime numbers from 1 to 100 in PHP?
php function checkPrime($num) { if ($num == 1) return 0; for ($i = 2; $i <= $num/2; $i++) { if ($num % $i == 0) return 0; } return 1; } echo ‘
Prime Numbers between 1 and 100
‘; for($num = 1; $num <= 100; $num++) { $flag = checkPrime($num); if ($flag == 1) { echo $num.” “; } }?>
Do loops example?
The do while loop is an exit controlled loop, where even if the test condition is false, the loop body will be executed at least once. An example of such a scenario would be when you want to exit your program depending on the user input.
What is the syntax of do while statement?
The syntax for a do while statement is: do loop_body_statement while (cond_exp); where: loop_body_statement is any valid C statement or block.