While Loop Video Lecture | PHP for beginners - Software Development

hello youtube and welcome to tutorial
number 14 I think in the PHP programming
series and in this video we're going to
cover the while loop now the while loop
is a function in PHP which will allow
you to execute a code as many times oh
not actually the code when a condition
is true or while a condition is true so
let's say we want to create our PHP file
we'll just add the basic tag there save
the files wild PHP okay the way to
create a while loop is similar to an if
statement instead of if we'll have a
while and then we'll have in brackets
our condition right here and then we'll
have two curly brackets and then the
code to execute will be here
so what you're saying while and this
condition is true it's going to execute
this code and as soon as this condition
is false it's going to go right to the
end execute an eco behalf here and then
finish the document so what we want to
do is create a variable and it's going
to just call it in num and it's going to
be equal to zero and what we're going to
do is we're going to say remove this
condition I'm going to say while norm is
less than ten and if you remember from
previous tutorials and less than is an
operator which we'll compare this to
this and it's just saying if this is
less than 10 so while num is less than
10 and what we want to do is do norm
plus plus and you should know from a
previous tutorial as well that plus plus
is an increment so this will just add
one to gnome so actually it'll make more
sense to add the arrow here so what
we're going to do is echo and then in
rotations the number is and then we'll
concatenate a break on to there oops
forgot the rotation mark a break
so we'll save this wild PHP and you'll
see it actually hasn't done anything
because I have forgotten to add the
actual variable silly me so we'll change
this to no and we'll save that again and
we load it and you'll see it goes from
zero to nine because we haven't set it
from which design equal to ten issues
while it's been below ten so let's just
go over what this is doing so we get a
variable called num up here with the
value of zero now we're starting a loop
right here am I saying while num is less
than ten we are going to execute this
block of code right here between these
two tags so okay let's go through it at
zero okay so one check yep num is less
than 10 so we're going to do is echo out
the number is and it's couldn't 0 so
that'll be 0 and then the break and what
we're going to do after that is
increment the number by 1 and as it's a
while loop we go right back to the here
we're going to say okay so now the
number is 1 so while num is less than 10
yep still 1 then we'll execute this code
again and goes all I up to 10 and now
because 10 when the number is 10 it's
saying 1 norm is less than 10 but the
number is actually 10 right now so it's
going to drop out the code and she go to
the next line so that is the while loop
and let's see if we can get any more
examples I think you know spoof points
if we put while so that's not equal to
and that's actually I apologize should
be that way around
so while it's less than equal to rc show
10 now and we can also need to do while
Bo and I don't really think that's too
useful right now so we'll just keep it
with a while and in the next tutorial we
will then go over the there other loop
which is I'm actually getting quite
confused now it is the
for loop so the fall for each we'll go
over that in the next tutorial so thank
you for watching this video leave a
comment do you have any questions this
loop is pretty much for if you want to
exit code more than one time cause you
could say while the current time is less
um I don't know 2 p.m. or something then
you know you can excuse the time you
know I haven't really got an example for
it right now because we haven't moved on
to advance concept so I can't really
give you an examples but this will be
useful further down the line so please
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