How can I access a variable outside a function in PHP?

How can I access a variable outside a function in PHP?

?> Global variables: The variables declared outside a function are called global variables. These variables can be accessed directly outside a function. To get access within a function we need to use the “global” keyword before the variable to refer to the global variable.

How do you use a variable outside of a loop?

You have defined the variable outside the loop, so the only thing you need to do is to initialize it, as the error message you should get suggests. String name = “not set”; while(loop) { name = if (condition) // do something to break the loop. } // can use name here.

How can I get data outside a foreach loop in Javascript?

var newVariable = []; getParticipant(conf_url, function(data) { data. forEach(function(obj){ newVariable. push(obj[‘uid’]); }); }); newVariable is now accessible outside foreach, but check your assignment, you are using loop so expected that you have multiple values.

How do you sum a while loop in PHP?

php’; $sql =”Select * from new_booking order by order asc”; $re = mysqli_query($mysqli,$sql); $total = 0; while($row=mysqli_fetch_array($re)) { $order = $row[‘order’]; $duration = 12; $total = $total + ($order * $duration); } echo ”

$total

“; // echo “

All Sumtotals should display here

“;?>

How do you use local variables outside a function?

Local variables cannot be accessed outside the function declaration. Global variable and local variable can have same name without affecting each other. JavaScript does not allow block level scope inside { } brackets.

Can a function use variables outside of it?

Global variables are the one that are defined and declared outside a function and can be used anywhere. If a variable with same name is defined inside the scope of a function then it will print the value given inside the function only and not the global value.

Can you use i outside of a for loop?

If you declare i before the for , then you can use it. (In other words, follow the standard and declare i before the for if you want to use i outside the loop).

How do you use a variable in a while loop?

You can put a variable declaration in the test expression of a while loop. What you cannot do is put a declaration statement in other expressions. For instance, in the expression a+b+c, you cannot replace b by int i = f() .

What is difference between for and foreach loop in PHP?

The for and foreach are the types of loops used for the different purposes in PHP where foreach is used for implementing associative arrays and for is used with variables. The for loop works by the end of the loop condition. On the other hand, the foreach loop works at the end of the array count.

What is Do-While loop 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. The main difference between both loops is that while loop checks the condition at the beginning, whereas do-while loop checks the condition at the end of the loop.

How do you print even numbers in PHP while loop?

Odd Numbers Are : “; for($i=1;$i<=$end;$i++) { if($i%2==0) { $even. =$i.”,”; }else $odd. =$i.”,”; } echo $even.

How to give a function access to an outside variable?

If you want your function to have access to an outer variable, you have to declare it as global, inside the function : For more informations, see Variable scope. But note that using global variables is not a good practice : with this, your function is not independant anymore. A better idea would be to make your function return the result :

Is there a scope in the while loop in PHP?

PHP doesn’t really have a concept of scope like, say, Java’s where this would be a problem. If $reportis not declared by the time you get to the echostatement, I am guessing PHP never enters the whileloop in the first place.

Is it good or bad to use global variables in PHP?

The one and probably not so good way of achieving your goal would using global variables. You could achieve that by adding global $myArr; to the beginning of your function. However note that using global variables is in most cases a bad idea and probably avoidable. The much better way would be passing your array as an argument to your function: