The PHP foreach construct is used to iterate over arrays. This is done in the field of mathematics. It will issue errors when one tries to use it as a variable instead of arrays and objects.
The foreach construct simply gives an easy way to iterate over arrays. Foreach works only on arrays (and objects).
while, do...while, for, foreach are used
foreach is a simple loop mostly used to read an array line by line; $arr = array("one", "two" , "three"); foreach($arr as $c) { echo $c; } it'll output : onetwothree also try looking up the while loop
build an array of vowels then do a foreach on the array and then explode the string on the array value and the answer is -1 of the result
The foreach statement is a control structure in programming that allows you to iterate over elements in a collection, such as arrays or lists, without needing to manage an index variable. It simplifies the syntax for looping through elements. For example, in PHP: $fruits = ["apple", "banana", "cherry"]; foreach ($fruits as $fruit) { echo $fruit . " "; } This code outputs each fruit in the array.
There is no 'foreach' in C
There are a number of different ways to loop using PHP. They're as follows:ForForeachWhileDo-whileBelow are some examples of how each of these types of loop work.ForForeachWhileDo-while
Foreach is for an IEnumerable, not just an array (unless you are using C# 1.1 or earlier). A collection (List, Dictionary, etc) can also generate a sequence from foreach-statement. In fact, if you have a class that is NOT an array, but it implements all the required methods of IEnumerable, it may be applied as:public class Storage: IEnumerable {...}Storage myStorage = new Storage();...Foreach (Thing stuff in myStorage){...}
AnswerTo get the list of currently loaded extensions within a PHP program. Use get_loaded_extensions() function.To check what extensions are loaded by PHP on a given server, type this on the command line:php -mHere is a php script that will list the loaded extensions in a table. Save this file as phpext.php and place it on your website. Go to this file in your web browsers and see a list of loaded extensions:
The IF construct allows a programmer to create conditional arguments based on the returned results of a certain tasks. In layman's terms it allows a program to execute a certain set of instructions if a certain criteria is met and a second set of instructions if that criteria is not met.
<pre> <?php $limit = 100; $primeList = array(); for($i = 2; $i < round(sqrt($limit)); $i++) { foreach($primeList as $num) { if($i%$num 0)) continue 2; } $prime[] = $i; } print_r($prime); ?> </pre> Based on Sieve of Erathosthenes. See the related link for further information.
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