![]() ![]() This process continues until the condition is no longer true. If is it true, the code in the while loop is executed again. In this video I'll teach you how to use both For Loops and While Loops in PHP and then I'll show you how to loop through and echo out the. After executing that code, PHP returns to the while loop condition and checks to see if the condition is true. If the condition is met, PHP executes the code in the parentheses after the while loop. ![]() The image above shows how PHP loops or iterates through a while loop. Once the increment operator makes $i equal to five, we exit the loop and continue reading onto the next statement, echo ” End of while loop “. This is less like the for keyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages. The results are the same as the previous loops. A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). The factorial of a number is the product of all integers up to and including that number, so the factorial of 4 is 4321 24. Then, we run through the do part where we find our increment operator $i++. Write a program to calculate and print the factorial of a number using a for loop. The conditional here tells the server to go back and run through the do part again. In the do while loop, the statements in the do while are always run once because the conditional is at the end. The conditional statement $i ” //line breakĪgain, pretty similar to the example above, but there is actually one major difference. The first statement $i = 0 is simply setting our variable $i equal to zero. Lets write our code in an HTML file and write our first While Loop. Example $i = 0 Īfter seeing the while loop, you can probably see how it is like the for loop, but just with the first statement is outside of the loop, the conditional remains in the if like statement, and the second statement is embedded in an if like statement. We will talk about 3 specific PHP Loops: The While Loop, The For Loop, and The Foreach Loop. Yeah I would, but this is for an assignment and I think the main point was the concept of thinking in loops more than just using a function. There are the following types of Loops in PHP: While Loops: Syntax. However, while loops have their own powerful uses that you will discover later in your programming life. PHP Loops: Loops are used to execute the same block of code a specified number of times. Personally, I use for loops much more often than I use while loops. The image above shows how PHP loops or iterates through a while loop. ![]() Use the foreach($array_name as $key => $value) to iterate over elements of an associative array.PHP while loops are similar to for loops, but with a different structure.Use the foreach($array_name as $element) to iterate over elements of an indexed array. ![]() Code language: plaintext ( plaintext ) Summary The capital city of United States is Washington D.C. The capital city of United Kingdom is London Output: The capital city of Japan is Tokyo You should have the knowledge of the following topics in PHP programming to understand these programs: PHP while loop PHP For loop PHP Functions. To iterate over elements of an associative array, you use the following syntax: $value) is $capital". To iterate over all elements of an indexed array, you use the following syntax: ' īlue Code language: plaintext ( plaintext ) PHP foreach with an associative array ![]()
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