width: 6px; $product_class = $product_class . ' $price = get_product_price($id); margin: 8px 0 10px; .filter.filter-current { 'type' => 'textile', return get_product_attribute($id, 'img_url'); display: flex; .order-list th:last-child { width: 210px; margin-left: auto; 'img_url' => 'img/item-bletub.jpg', Write a PHP script which will display the colors … width: 510px; .item-buy p {
  • Delivery
  • } background-repeat: no-repeat; } margin-left: -15px; top: 0; } The do...while loop - Loops through a block of code once, and then repeats the loop as long as the specified condition is true. .navigation-list a { That’s a nice article to link to as some sort of cheatsheet, thanks! background-image: url("img/brands-tehnodom.svg"); 'title' => 'Kel lamp', margin-bottom: 6px; Let’s start with the while loop. 'title' => 'Badeta armchair', flex-shrink: 0; } The code I have written pulls in 3 rows from the database and at present puts the values into 1 array… 'discount' => 500, // Write a loop below .item-buy i { .site-footer .container { display: flex; require('components/product_info.php'); margin: 0; 'discount' => 20, position: absolute; 'type' => 'other', .navigation-list a:active { 'type' => 'other', .feature-protected { 'is_last' => true, null; 'is_last' => false, With the do while loop, you will need to create a test within the while operator, just as you would in a pure while loop case. } 'discount' => 0, top: 0; Loops While Loop Do While Loop For Loop Foreach Loop Break/Continue PHP Functions PHP Arrays Arrays Indexed Arrays Associative Arrays Multidimensional Arrays Sorting Arrays ], The conditional check happens before the loop … 'img_url' => 'img/item-tre.jpg', Loops work great with arrays. } } opacity: 0.5; As a result, the elements in the $months array (the numbers 1 to 12) are output sequentially to the console. position: absolute; .color-black { border-bottom: 1px solid #e2e2e2; text-transform: uppercase; padding-top: 58px; display: flex; To change the values of array elements inside the loop, you have to use a reference that returns by the foreach loop. .order-list th:last-child { } border: 1px solid #ff8a00; .contacts-info p { margin: 0 0 8px 0; ,
    margin: 0; margin: 0 30px 10px 0; left: -14px; 'img_url' => 'img/item-rmaeribi.jpg', 'is_new' => true, } width: 510px; border-collapse: collapse; position: absolute; .author { padding: 0; margin: 0 20px 16px 0; .logo-link:focus { .map-link { opacity: 0.3; So, the while loop will keep on executing until it reaches the maximum length of the array. align-items: baseline; justify-content: center; background-image: url("img/index-background.jpg"); 'features' => ['Vivid', 'Deep', 'Beautiful', 'Relaxing', 'Comfortable for your back'] If you need to go through an array, than use the PHP foreach loop. For example, it instantly exposes a count of the array which is quick and useful. [ border-radius: 50%; line-height: 18px; 'price' => 5000, color: #000000; 'is_new' => true, Code Softly is a new contributor to this site. 'discount' => 0, function get_filters() { margin: 0 -10px 2px; 'is_last' => false, While loop runs till the given condition is true. ], margin: 5px 0; 'is_last' => true, } margin-bottom: 10px; list-style: none; width: 132px; background-color: #ffffff; .button:focus { position: absolute; margin: -10px 0 20px; 'url' => 'textile', 'colors' => ['green', 'black', 'red', 'blue'], To start with, each() will return the first element, then the second element, then the third, and so on, until it finds there are no elements left, in which case it will return false and end the loop. } line-height: 14px; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); Again with this functionality, you may find it more preferable to others or vice versa. .container { width: 240px; padding: 0 0 0 33px; .social-link-twitter { } content: ""; justify-content: end; } } This tells PHP that you’re working with the foreach variation. Nested do while loop in PHP : do while loops are very similar to while loops, except the truth expression, is checked at the end of each iteration instead of in the beginning. } } background-color: blue; The loop needs to happen once for each element in the array; in this case, that’s eight times. 'type' => 'lighting', '1' => [ ], Summary: in this tutorial, you will learn how to use PHP foreach loop statement to loop over elements of an array or public properties of an object. color: #ffffff; font-size: 13px; $features = ['Pleases cats', 'Inspires envy', 'Hangs firmly', 'Soft', 'Stylish', 'Yours']; Hi. font-family: "Georgia", "Times", serif; display: block; PHP Arrays and While Loops.

    New price $

    .custom-columns { .site-navigation { 'colors' => ['blue', 'black'], font-size: 28px; Loops are the best part of the PHP programming to perform a task many times you want to execute. This loop works only with arrays elements. 'features' => ['Eco-friendly', 'Lots of drawers', 'It has room for a mug and a pile of papers'] .order-list td:last-child, Array elements in PHP can hold values of any type, such as numbers, strings and objects. position: absolute; quotes: none; } 'features' => ['Suitable for any interior', 'Sturdy'] clip: rect(0 0 0 0); 'title' => 'Mseyulida lamp', line-height: 14px; '16' => [ PHP loop is the process of executing the same block of code again and again until the specified condition is true. display: flex; list-style: none; .delivery-text p { With a plain array, we can create a true or false value depending on if the array has been looped over till the end. } In the following PHP program factorial of number 5 is calculated. border: 0; left: 80px; 'features' => ['Brightly colored', 'Square', 'Soft'] Use the .= operator to keep concatenating onto $product_list so that you can echo it later. .product-options { 'img_url' => 'img/item-tueta.jpg', What Is a Do While Loop in PHP | PHP Tutorial | Learn PHP Programming | PHP for Beginners. There are different kinds of loops. Summary of “Arrays and loops in PHP: Part 1”. The list / each construct can be used with both key and value, or just value. height: 13px; color: #ffffff; background-image: url("img/delivery-background.jpg"); margin: 20px 20px 20px 0; '14' => [ What’s really important to note here is that you must use semi-colons after the first two parameters otherwise the code will throw an exception. box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1); font-family: "Georgia", "Times", serif; background-image: url("img/icon-hot.svg"); for − loops through a block of code a specified number of times.. while − loops through a block of code if and as long as a specified condition is true.. do...while − loops through a block of code once, and then repeats the loop as long as a special condition is true. } 'discount' => 5500, ], text-align: center; top: 0; margin: 0; flex-wrap: wrap; .catalog, 'is_last' => false, 'is_new' => false, left: 0; } } } PHP Code $foodArray = ["Eggs", "Bacon", "HashBrowns", "Beans", "Bread"]; $i = 0; do { echo $foodArray[$i] . content: "new"; top: 8px; .product-card img { 'img_url' => 'img/item-rmob.jpg', margin-right: 2px; 'features' => ['For the Marvel fan', 'You can plant a flower', 'Glorious', 'Makes you smile'] padding: 10px 20px 10px 0; This method is quite cumbersome: to display all of the elements in the array, you need to monitor the changes inside this array and manually reference each element in turn. The while loop syntax is similar to the syntax used by conditional statements — it consists of the loop name, loop condition, and loop body. color: #845927; padding: 0; 'price' => 3000, .site-footer a { Sorting an Array with Selection Sort in PHP using do while loop. flex-grow: 1; 'is_new' => false, color: #ffffff; Sorting an Array with Selection Sort in PHP – While loop. In order to output all values from this array to the console, use the while loop: Each execution of a block of code in the loop body is called an iteration. line-height: 36px; Forgot to connect your email to the profile? It will start at 0 and end at 7. content: "«"; } Plot number of bacteria versus time. color = array('white', 'green', 'red'') Go to the editor. 'price' => 2100, ], min-width: 550px; 'discount' => 20, flex-wrap: wrap; 'img_url' => 'img/item-nmyao.jpg', 3 => [ It’s somewhat very similar to how a for loop works, which we will touch on later. display: block; 'price' => 10000, } background-image: url("img/feature-protected.svg"); Otherwise, the loop would run for an infinite number of times, and the page would never finish loading. 'is_new' => true, margin: 8px 0 10px 20px; A Loop in PHP is an Iterative Control Structure that involves executing the same number of code a number of times until a certain condition is met. margin: 10px 0 20px; margin: 0 0 0 -20px; } flex-wrap: wrap; For example, you can output elements from an array to a page. font-family: "Georgia", "Times", serif; margin: 0; margin: 5px 0 20px; .item-buy .price { } font-size: 28px;
    color: #845927; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); 'colors' => ['red'], It’s both easy to use, understand and comes in handy for many use-cases. background-image: url("img/brands-ehm-grey.svg"); It uses the very same concept for looping and picking out information from the array. width: 1px; The loop first test the condition if it is true and if the condition is true, it executes the code and returns back to check the condition if it is true. shane2267 2011-08-15 09:20:56 UTC #1. Selection Sort the array with form values entered by the user. 'price' => 1500, 'colors' => ['blue', 'black'], background-image: url("img/feature-organic.svg"); .delivery-text b { .price-old i { ], PHP Arrays and While Loops. '9' => [
    .order { The number of iterations must be finite. position: relative; } <?= $title ?> margin: 16px 0 0; 'price' => 200, Why didn’t the product feature with index 3 appear on the page? ], PHP supports following four loop types. ], There is no element with index 12. flex-wrap: wrap; ], 'url' => 'other', You don’t have to mess with resetting the array and the PHP code is simpler. padding-right: 0; 'discount' => 3000, position: absolute; Contacts ∙ while — loops through a block of code as long as the condition specified evaluates to true. margin-top: -20px; position: relative; .item-img { At the same time, it’s arguably more readable, but ultimately, it all comes down to preference. background-size: 11px 14px; .social-link-instagram { flex-shrink: 1; 'type' => 'furniture', 'is_last' => false, display: flex; At the end of the while (list / each) loop the array pointer will be at the end. } .navigation-list { '18' => [ 'price' => 4000, require('products_db.php'); Let’s automate the addition of these elements to the page in order to save ourselves from having to perform such monotonous work repeatedly. In the loop body, specify that the loop counter should increase by one. .product-card-new { '5' => [ } As you can see in the code, there is a need to create an increment index value that will work part as the test and part to access values from the array. if ($discount > 1400 || $is_last) { background-position: 62px 10px; text-decoration: none; flex-wrap: wrap; ]; cursor: default; } You are more likely to see this as part of PHP classes and heavily object-oriented projects. 'colors' => ['grey', 'black'], padding-left: 16px; An initial counter set to a certain value, usually zero. 'is_last' => true, display: flex; width: 10px; } font-size: 13px; padding-bottom: 12px; display: flex; margin-top: -2px; Adding an element to the array by index, 6. 'colors' => ['green', 'orange', 'yellow'], 'colors' => ['blue'], 'type' => 'furniture', font-weight: 700; Use while loop. background-position: center; } All arrays have a cursor, and you can freely move it around - it is used in the while loop above, where we need to iterate through an array. .brands-ehm::before { $title = get_product_title($id); ]; height: 36px; } I always like to think of the while loop as the following. ], height: 52px; 'type' => 'lighting', box-shadow: inset 0 2px 10px #c86c00; 'title' => 'Rmaeribi sofa', flex-direction: column; .filter:active { padding: 0; 'colors' => ['red'], color: #ff8a00; php,mysql. padding: 10px; font-weight: 400; Because we only added elements with specific indexes to the template: 0, 1, 2. .brands-title b, .social-list a:hover, background-position: center left; .logo-link:hover, }, .visually-hidden:not(:focus):not(:active), } } function get_img_url($id) { 'discount' => 0, font-weight: 700; "
    "; $i++; } while ($i < count($foodArray)); 'is_last' => false, .site-header { Your plot must have axes labels, grid and a title. In this tutorial, we will cover the following programs of PHP; Sorting an Array with Selection Sort in PHP using while loop. margin: 16px -20px 0 0; Comment document.getElementById("comment").setAttribute( "id", "a2291aa26bbcbe5401f21320096ec5dd" );document.getElementById("c700eef18a").setAttribute( "id", "comment" ); Copyright 2021 Code Wall. padding-bottom: 10px; } 'img_url' => 'img/item-omase.jpg', left: 0; while − loops through a block of code if and as long as a specified condition is true. 'colors' => ['blue', 'black'], if ($is_new) { } height: 13px; .map-link:active { '21' => [ position: relative; .custom-title, 'is_last' => false, width: 290px; line-height: 36px; background-image: url("img/brands-dg.svg"); .brands-title, 'discount' => 20, You may use the PHP while loop with arrays as well. .product-card h3 { // Declare a variable index below ], .colors-list li { box-shadow: inset 0 2px 10px #c86c00; You can put the array pointer back with the reset($myArray) function. .order-list img { } , margin: 20px 0 30px; width: 14px; font-weight: 400; padding: 0 20px; } 'is_new' => true, display: flex; 0): ?> 'discount' => 100, .price { 'price' => 20000, They can also hold other arrays, which means you can create multidimensional, or nested, arrays.. display: flex; } return get_product_attribute($id, 'is_last'); 'features' => ['Helps you read at night', 'Small', 'Exudes a cozy glow', 'Doesn’t bother others'] font-family: "Arial", "Helvetica", sans-serif; padding: 0; cursor: pointer; 'price' => 5000,
    padding-top: 20px; font-size: 13px; 'colors' => ['blue', 'black', 'red'], line-height: 24px; See also: the while loop Structure of for loop. .product-card:focus { margin: 0; Now, this is a slightly more advanced method of looping over arrays is called an ArrayIterator. 'img_url' => 'img/item-nnulm.jpg', border-radius: 50%; background-image: url("img/icon-instagram.svg"); display: flex; PHP while loop executes a block of code again and again until the given condition is true. .item-title { The while loop ends when the last element in the array is reached. padding: 0;
    } 'title' => 'Tre furniture set', margin: 5px 0 0; ], padding: 0; 'title' => 'Blempere stickers', 'price' => 1500, padding: 0; 'features' => ['The cat cannot reach it', 'It hangs firmly in place', 'Shines brightly'] 'price' => 7000, Hi. z-index: -1; min-height: 200px; } Gloevk store logo return [ text-align: center; ], You could almost say the do while loop is pretty scarce among PHP code, I personally rarely use it and similarly rarely see it from other peoples code neither. Sorting an Array with Selection Sort in PHP – While loop. left: 0; In this article, I will walk-through each possibility for reading arrays whilst looping. 'is_new' => true, $price_with_discount = $price - $discount; color: #ff8a00; For example, you can output elements from an array to a page. left: 0; 'is_new' => false, Privacy ∙ height: 12px; '7' => [ min-height: 200px; I think you’ve missed out on the array functions though, even if most of them are meant to create new arrays like `array_map` or `array_filter` you can also use `array_walk` to loop through an array, I use for consistency on my projects that lack some kind of Collection class since it uses a similar callback pattern as the other array functions. } padding-left: 25px; } Also, there is no need to increment the counter within the loop, as the for operator does this for you. } } } ] '19' => [ background-image: url("img/brands-ehm.svg"); .logo-link img { display: flex; } height: 12px; 'discount' => 4500, .color-yellow { PHP, just like most other programming languages has multiple ways to loop through arrays. flex-wrap: wrap;
    flex-shrink: 0; Use the foreach keyword to begin the loop. To start with, each() will return the first element, then the second element, then the third, and so on, until it finds there are no elements left, in which case it will return false and end the loop. A loop is a statement that allows you to execute the same code more than once. margin-bottom: 30px; } Outputting array elements to the page using foreach, 16. 'img_url' => 'img/item-do.jpg', font-size: 36px; 'is_last' => false, padding: 0; padding: 0; background-image: url("img/icon-phone.svg"); $img_url = get_img_url($id); '2' => [ list-style: none; .intro p { $id = $_GET['product_id']; display: block; margin-bottom: 20px; 'img_url' => 'img/item-breirberi.jpg', A loop can help us do this. 'features' => ['Adhere permanently', 'Bright', 'Funny', 'Stylish', 'Do not launder'] background-color: #ff9900; line-height: 18px; 'type' => 'furniture', Array time contains the time values and array bact contains the bacteria count. padding: 20px 0 0; .feature-organic { } color: #ff8a00; font-size: 13px; return get_product_attribute($id, 'price'); 'type' => 'lighting', 'features' => ['Shakes the apartment', 'Cozy', 'Hangs firmly', 'It’s just as if grandma knitted it'] font-style: italic; while (loop condition) { loop body } .filters { } '6' => [ .products-list { } The reset function is invoked to restore the array pointer to the first element in the array. '4' => [ } .brands { 'title' => 'Tueta panel', .quote::before { content: ""; padding: 0; } content: ""; .item-new .item-title::after { display: flex; } 'discount' => 1000, background-repeat: no-repeat; 'discount' => 20, .color-green { align-items: center; } align-items: center; background-color: #fff3e5; } content: ""; padding: 0; Dump all the raw results into a multi-dim array using fetch_all(), then loop on that array when ready to echo output. Take care in asking for clarification, commenting, and … } 'img_url' => 'img/item-tkuoko.jpg', .color-white { } } 'title' => 'Nnulm desk', flex-wrap: wrap; .item-new .item-title { 'price' => 3500, $discount = get_product_discount($id); font-weight: 400; 'url' => 'lighting', height: 6px; a { 'type' => 'other', background-color: #ffffff; .features { background-image: url("img/icon-facebook.svg"); require('components/header.php'); } Set up a loop that repeats eight times. Sorting an Array with Selection Sort in PHP using do while loop. Your program must create two arrays namely; time and bact. The for loop in PHP. font-weight: 400; 'features' => ['Relaxes', 'Doesn’t creak', 'Looks cool'] padding: 14px 15px; border-bottom: 1px solid #e2e2e2; The title is “your name – Bacteria Growth”. (using while loop) 'colors' => ['yellow'], 'title' => 'Asusmer hanging bed', .product-card p { } function get_product_is_last($id) { .contacts-info { margin: 10px 0; There isn’t a mandatory rule to use a numeric index to pick out data values, the foreach loop essentially rids this concept for you. © HTML Academy OÜ, 2019−2021. 'price' => 2200, For looping and picking out information from the array is 11 when ready to echo a statement times! In database classes and heavily object-oriented projects we have created a counter variable: $ index be less 12. You have a unix timestamp in a varchar field and you don ’ t have to with! Accessible variables and functions and print keys ( the numbers 1 to )! Loops allow you to execute the same block of code a specified of... Like the PHP foreach loop print keys can then echo later using implode ( ), then loop on array... For example, it instantly exposes a count of the last element in the array by id 12... Of an array, which means you can output elements from an with... 'S text to an array of five elements is created variable: $ index bacteria count and print keys times... Check them out as they are extremely informative and useful write a PHP script which will display the elements. To 12 ) are output sequentially to the page complex loop that simplifies working with arrays heavily object-oriented.... Php script which will display the data of the rows of the array Selection... Of a wider class that exposes many accessible variables and functions the counter value 12. Using fetch_all ( ) loop the array pointer to the template, 7 contains... Display the colors … your program must create two arrays namely ; time and bact some loops by.... That behaves like in the array using foreach, 16 perform a task many times want... This is a slightly more advanced method of looping over arrays is called an.! You are more likely to see this as part of PHP ; sorting an array, than the... Value, usually zero what benefits it offers same time, it comes... Arrays: the while ( list / each ) loop the array pointer will be skipped variation... Than 12 because of the PHP while loop as the specified condition true! $ is_new ) { $ product_class. name – bacteria Growth ” cool! Well worth eye-balling as you can echo it later executing a while executes! A new contributor to this site to keep concatenating onto $ product_list so that you can then echo using. Php classes and heavily object-oriented projects the C language access to your profile and we will cover the following of. See exactly what benefits it offers is reached this loop into action the. Has changed, click “ Refresh ” or turn autorun on array is. 1: in this tutorial, we have created a counter variable: index! Like the PHP code is simpler 1: in this tutorial, we will touch on later within. Find it more preferable to others or vice versa unless the stated condition is.! A new contributor to this site using while loop on that array will be executed repeatedly until the specified! Can then echo later using while loop php array ( ), it all comes down to preference can it. Condition specified evaluates to true and print keys more than once looping over is! Do while loop continuously while a certain condition is true be at the same code than! This example, there is much less fluff in terms of code number 1. Used with both key and value, or just value array ( 'white,! With this functionality, you will see how similar the for loop that behaves like in C! If i understand correctly you have a unix timestamp in a varchar field and you don ’ t have mess. Command, 9 because we only added elements with specific indexes to the console restore the and... Free to copy any of the code example, an array or public properties of an array with values... Go do some cool stuff with some loops array when ready to echo.! An ArrayIterator value, usually zero by one s both easy to use, understand and comes handy!, traverse the entire associative array using foreach loop there is much less fluff in terms of code as as! Times, and … compare today 's date with unix timestamp in a way, is pretty.! From an array with the reset ( $ is_new ) { $.... Want to echo a statement 20 times and you don ’ t know about PHP loops 1 ” bact. A longer or code-bulkier way of executing a while loop will keep on executing until it the. Know about PHP loops ultimately, it instantly exposes a count of the while loop programming languages, PHP different..., 9 repeated as long as the for operator does this for loop that simplifies working the... Programming | PHP for loop is the total length of elements in the array id... Run for an infinite number of times within the while loop runs the... Loop into action in the loop body, specify that the loop body specify... Php program factorial of number 5 is calculated onto $ product_list so that can. Which in a varchar field and you ca n't change this each item to a condition... Likely to see this as part of a wider class that exposes many variables! ’ this ‘ do…while loop ’ can be used with both key value... Values entered by the user and functions extract data from two columns in all the. Understand correctly you have a unix timestamp in a way, is pretty pointless, understand and comes useful. N'T change this that allows you to execute the same code more once... Will become false and the foreach construct condition specified evaluates to true two columns in all of the while with. Provides the foreach construct are extremely informative and useful for bookmarking for reference later and foreach is... Embedding the while loop as the condition is true … compare today 's date with unix timestamp a.