Debugging with Zend Studio for Eclipse by Peter MacIntyre ZCE

www.osscube.com/php/deployment/zend-server
The participants will greatly benefit from this video by learning the key Zend Studio concepts & features of how the debugging environment can assist in fixing code. Watch this video to learn more about Zend Studio, Zend Studio with Zend Framework.

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Closed Caption:

this is the session for Zen studio
for trips and debugging I'm
we're going to look at today is service
and the bugging issues
Wasiu studio orkut the booking process
and look at some other ways to stir
launching things through I mean
throughout the book the
sense to you to a bar as well I'm
really assist file here called people
demo that PHP
it comes with
in studio 9 and say
example or somebody to use
K I was go through it has some HTML
right now I'm in the if you know
perspectives on my custom PHP
perspective
you can see there on the top I'm
right right of the screen moving the
slider bar across years to catch your
eye
and I'm my initials are
bbm so is called a PHP p.m. so that I
know it's mine
and I so we're in the editing mode ok
files
see projects here in the park explore
PHP explore other
on the top left and there's di Bergamo
PHP Perl
are looking at using I am
so the code example it is that they're
giving an array
other changing me
array color background are the table
background rather
and displaying medalist workers now
I'm as a former debugging and the first
level
syntax checking are you will see a
little
II yellow warning symbol yield sign an
exclamation point but up beside
any items that are questionable
they still work but questionable
again here's another one I just an
undefined variable:
and if you wanna be strict about your
peril definitions
since studio will allow that old is
forcing Eric here
so you can see the difference and I'm
so be it was major syntax error it'll
stop that process
it will show up as a red
circle with the way i can. so that's
basic
are really simple syntax checking the
bugging
I about here it's actually doing some
it seem of 5 debugging here
so hover over this syntax with the
yellow
are you doing you'll see are
attribute border is obsolete this its
use is discouraged makes no
are documents so in studio
version 9 is I am
compatible or
beginning to work with an HTML 5 minutes
in taxes while so let's hope
so what we're going to do all the same
this file
is
we're going to also you what it looks
like when it's working
so here's this image up the screen
with those Rosol training and colors
I'm and you can see
that's what we're going to be looking at
eventually now
I hope we know that there are different
perspective this mention one
that we're in now is I'm to you
coding what we can switch to is a debug
I'm perspective which I have in my
respective tab at the top left but I can
also switch to
debugging I write news from the file
i cants
school work from the pop-up menu PHP web
application to bug affects
so that will launch the debugger
switch the perspective and start bugging
now before we actually get into that
another we can switch perspectives and
you can see all the different tabs will
go into that perspective here
minute but so those two different ways
so switching on a prospective buyer
schools which the
perspective to the book respectable on
actual launch
the debug session I'm movie actually
want to bug you pick your file
to save your cursor in that file right
moves on and the bug as
web application and it will launch
switched
the perspective in March this books
now before we get into actors on the
show with her Prince's
under window preferences
you will see two different levels so
debugging is run debug
iight this took level which is to
Merrick to
a.m. in studio so here
the Monday bug level you can well kinda
different
options
I'm making from self perched to stop
break points and so on I am
we will %uh she will break points or
later
so you can switch console of I hope
work's
time an external tool that we had some
about this is interesting how you launch
the debug session
I'm you can save we're just for options
and how to save files
I'm and
and different different say
selling services continue long trip
project contains their successor
45mm so you go through those and you can
see some other different
them K a features here
more specifically there is a PHP debug
her prince level I'm
energy expand that you'll see a few
things
the first one is which and default
settings
on
a a few feet bugging to use which server
you going to use
which the books to our news will you
send the burger in this case
for today %ah this is important here
break at the first light
so instead of if you have it turned off
what will happen is it ok to start
running through the book section
and with nothing just to stop it so it's
a good idea to have its
upgraded to 1st line to switch
respective
and trying to get ready for the debug
session
rather than having just a car how would
stop if you had break points but
it's better this to kinda switcher
prospective
catch your breath before you I'm
going to the book session so you're
different
and the burgers %uh make know this port
call
mu Irish refer to that later
20 2080
in this is where you get into it can
I will probably come back to this little
later I'm
so that other workbench options in step
filter options
which won't there's pretty I'm for down
the road swing
into those today so this is a
those years preferences
so we're gonna start back to the bug
this section
and we had it set to
stop at first line: so will do their
and we will right now some
code following will send the bug as web
application
that because my session settings it's
going to ask me
I'm to switch
perspectives if I want to do I don't
have to we're going to do
I want to so we can switch to that
perspective
and I can keep my decision for 12
I like being asked to retire so
what we have here now is the ebook
respective
to a lot of different views here the top
right one chart top left is
I'm the tree for
going through the file itself in here
the debug session if you right balance
on it will pop up list
a to relaunch the
Anna the debug session if you want to
start from the first began
I'm you can terminate it the session and
still stay in the book session
and you can do some your step filters at
will
I'm go through as well here in a minute
I if you terminate it stay on the list
in the book you
but you can also termi and remove it so
we could see some different options here
I not discuss
adjust the screen they're here a little
bit
so we can see a few more things going on
beside the debug a you there's one here
behind the call servers as if you to
Buckingham different
server government local host I should
mention all might be bucking here is
done
local host and I'm using as and
server community addition to do that
so it is all running up my own local
computer
so besides the debug on the other group
of
user variables you can watch the
variables
now because our session has started the
book section started
I'm
we can more
popped up do anything
so yet so it since we started it and
remember we are setting
0 stop at the first line so
as you can see it already went through
the HTML code you can
you since we do this in debug HTML
kings or stops at the first occurrence
of the PHP open peacekeeping X
you know that you're stopped here
because there's a little blue a row
pointing to a the line current execution
mark
I in the market for hopefully see that
on the screen so back to the top right
will see summer collection views here
again
since we started at this session at the
first line
summer items are open
if we were due open up the post there's
nothing in the post three right now
but we can interrogate the get array
will see a lot of the book
I am entries in the get
and that's helped a lot at the park
sessions are launched
here's the original URL and so on so you
can see
what's going on in your sessions
asserting a global were welllll
variables
a.m. and so here you can see this has
two different
I'm
waz is this place value so you can see
in this cold here says value but also on
the meese
I'm to the little so window there's a
I've
I lighting up the value the kernel
you're looking at
%uh also if there's any cookies and
files you know
open up so those the basic environment
variables that are launched
and exist under your a
discretion expose to interrogate
if we had any break points will be
seeing these have a couple said in a
different file
i'm talking turn those honor of I want
to will show you have a
set breakpoints here in a minute I
expressions
there's nothing here right now show you
that in a minute
what that is is you can watch
particular variables Stetter if you're
looking this whole list the variable
this is everything
in the current memory session debug
session
will be one focused drill down to only
one or two
enough people that this whole list
that's where you would set up your
expressions
different scripts and interactive
consoles in primer spec
so those are different we will continue
those
use today either but I'm to no their
I can also be aware that you can of
customize your view
your prospects are your the book
perspective
if you want to you gonna have the script
when you open the fuse close
them you can always get back to
that use here can at any time
under window show view you can pick your
view
want to add to this come
beside the running code we have I'm
browser output
you and that the bug you put few so we
can
we're gonna look and see if those
feeling
when time when the time comes works
stepping through the crew
down below the code her some more users
console you
task to you you wanna see what's going
on there
the browser console request monitor and
so on
again these are views that were not
coming in every one of them
but there in the default deberg I'm
perspective
so switch back to the council
now again we're still in a holding
pattern
a the first line of code and where to
begin so
what we're gonna do now start stepping
through work ok if you look up in the
cop
a menu navigation area you'll see a list
of
when we're looking at the BOQ you
we can see a whole who are different
I'm items on the pop-up menu want to
step into
here at the red box terminate you can
resume
we can remove all terminate sessions
but these are important one step into
step over
step return and another one just run
or resume here also on the run menu
people at their home you can see
a the same items here step in to step
over but make note of the Archies
5687 because we'll be using those
I it's easier to use justify repeatedly
then
pulling up this menu and
aren't you also though on the route run
you can see that many different
a items here enough
and again our community we want them but
just to know that the year all related
to
the book section so
but starr I work cool start with the
first time which is step
into in the work that goes up by is
steps
into a litre coke so basically to
execute a line of code now the reason
says step into
is that if it's actually a function call
a custom function or custom class
it will actually try and find that code
and open it up for you and will see its
in action here the ultimate to that is
step over so what that does is it you
see a line of code
in now is fine I'm or function call what
you can do with step over it
and what that does is it runs it
executes it and brings you back to the
next line
executing the next execution line
after that functions done so it's a view
from work running through
function have maybe 20-30 lines are code
or more but you know it's part
and you're not looking for a bug in that
area the other one except return at
seven
%uh follows after
stepping into so once you get into a
function if you drill down into a
function
when you see that it's working fine what
you can do is press f7
you step return and that will take you
will finish executing the front
in the rain and take you back to the
level %uh
previously you were in their step 2 into
that go
to again little bit easier to see what
we have
a running example here so I'm just gonna
press f5 I'm going to highlight my coat
gonna press f5 and will see that my
first execution ocho
is two lines down because
its loading in Iraq in this is the first
I i mean that array so
I'm all this press f5 repeatedly
with that 0 sorry we're just doing is
reading through the code here first
he so it's scanning its final
I just jumped over the whole function
row colour
just because it's reading into memory
notice here though that DB
is now created variable
with its %uh berets and so on so jumped
into those ran over those
items and loaded into the DB very
so now it's just looking for a function
calls
nothing's its reading ease into memory
nothing actually happened
in those lines of code yet they were
called
they're just being written to you now
the first
I'm call to a function is called display
workers
and display workers is this I make this
ok for a little bit taller so if it's
the a
so here we are down
nowhere on this line of code is
highlighted in green it's calling sway
workers which is this function up here
so
in we are going to by Max
and we getting
call into I were inside now this
function call display workers noticed
that the variable list
has disappeared no variables have been
passed into this function
and the global variables are still there
it is not being shown on this list
because they're
I'm they're wanting to clean up the
display
so you can actually still past
interrogate get and so on you want to
but it's trying to clean up the display
for you
so here Global $db which is a a
command to bring in from a global scope
the variable find his TB because that
it shows up as an array I
with this information in it and this can
go through for next loop
so here when it went into
it's going into the fornix hope its
defining
some more variables Dollar and Dollar I
and see its values here so again we're
stepping through without finding any
problem here we're loading up some more
information here worker data now we know
that
it's going to go your forex loop from I
too AM
so an iOS 6 that means was gonna run
this
six types this is a place where we know
but this is going to be fine
where we could use a step return
so what would happen there's if we do
this step return is that it would leave
us
take this over to this display workers
function
so it's tries to Ritter so as you can
see it ran
all ok the code
that no for next group six times and it
returned to the lineup code
that call that folks also you can see
that these variables now
are all I'm still 02
against but we're now able to see the a
super locals as well
I'm
you can see there's nothing in these
Brodeur put yet because I'm nothing's
actually gone to the screen
I'm but those will be helpful
in time so let's see what happens and we
continue
stepping into I'm
work ago undefined variable: let's
harmless to the display minute runs to
the bottom or the HTML
if we press finish the run
we care our hope for now we see
that this is work on the browser put you
will see work so
going out to a typical browser and I'm a
debug output
you we'll see the HTML it's being
generated
so it saves us from right missing I'm
and browser when though it's a good deal
code or look at the against you
I in the console view
was from ok here
hope we can see that well enough
but there are some notices and then some
warnings
on debug in the debug session so that's
good to know
that it's recognizing the undefined
variable:
I'm I'm 49 and giving you a little
break calmer so it's in the console
output
up
okay so that's the first running through
the session now
the debug session now as you can see in
Turkey but view
a the session has been terminated and
the debug session is done what we can do
those we can relaunch it if we want to
write me sing on it
and relax session we said I didn't find
my book this time I want to try it again
it'll give you a new session and again
starting back at the very top
all variables will be cleared ok
so we don't see anything there and we
can start going to your code again
so I'm gonna step to our Code
and this time we're going to go into
display workers
and I'm going to show you
how things change now here's worker
named
here's a very well as pic picking up
value
from I'm
to worker data array
and it's based on the iteration
for next to so I want to find that
very well I wanna watch it which is what
I was talking earlier
i cant look at it and variables
and say worker named I can see that's
currently accepted Peter
I run through this again I have to keep
going back up to work earning
as you can see the variable this is
getting a little crowded now
and
now it should be printing the salon
screen
with the procurement I work a name is
still there by itself
but things change 2nd I later step
through
going through my next for next loop and
their worker name should switch
right now and it cuts however
now you can see that there's a list so
many variables here that were
kinda tricky pin tracker if I wanna just
focus on that work remain
I can double click on it highlighter
right mouse on it
and say watch know what that will do
that'll really all it's doing is giving
me a subset
0 the variables view
in a
I am
its own expressions for you
so here we have arm
just worker named by itself I'm not
quoted with all the other very well list
now and I a neat thing here too as I can
right mouse on the expression itself
from watching
I can a at it
I'm
sorry I can and its value so I can get
into
was able to do that before your
in the perils miss you can do an
expression step
see I can change very well-meaning can
change
out so under variables were like to I
can change its value
to you red now have affected back
I can't change things values variables
on-the-fly I want to and that will help
me with a debug session possibly a sort
of I'm on
loop number for 7 something's going
wrong
I do I look into how do I fix it well
look
so they're going through the loop 37
times to get there you can expect that
number
and jump to that value and save yourself
a little tired
the question so for
Norman going kinda quick we've stopped
we had a star start a little late I'm
but so
us but we should ask the question sooner
no questions okay
and so the next thing I want to talk
about
no just assure you that can terminate
the session
by just clicking on this red box in the
debug you the debug session stopped
everything's
turned off so all variables work where r
I'll knows expression is still there
though if you want to keep that for
another session
sheesh it will to that court
but i wanna show you now is break points
and what that is is just a way to stop
your code I'm
said it going 55 step step step what it
will do is it will stop the
codes a certain line and allow you to
run right at that time
regular arco so
I'm what's good a breakpoint
on line 23 which is the returning on
this
background-color: 1 by the way I set a
breakpoint is that this 10 to the marker
board here
and Mark Webber and stole quick I'm at
Walmart little blue circle will show up
all set report
you should notice that okay
I'm going to remove these other
breakpoints from previous
so now we have a break point here
showing up in a break or
you I said another one on line 25 and a
quick
it shows up herbert point you as well
now I can actually keep these break
points
and turn them on and off instead of
removing them all together
and in the breakpoint view you can see
that this check box is here
your turn off the one by unchecked that
box
for the 1i sent on line 25 then
I keep the break point but goes from
blue circle to a white circle meaning
that it
exists but it's inactive so
I want it won't stop at that line I'm a
secure
so that's handy you can set breakpoints
you can watch
a certain area code star and stop
and skip over them more now
I'm let's restart the session relaunch
was
so terminated altogether your
reworked now
became I am again stopping at the first
line of code
what I could do now is just say are
resume
and it should stop at break
sometimes I'm or skew
that actually happens so by quick resume
with his run
until it's that breakpoint it stops
an art set lilac ok for you
now you can check any variables that you
want what happened up to this point
I you look at your expression if you
want to
and there's nothing I in there car so
you hit resume again
you run it'll stop at that break point
every tart and
as you can see it's just gonna run until
it skips over that and we get
are course and ready to go so
again with you start it was probably
work best absolute best place to stop
but we can turn
he's on are source
and turn on our
the are the that point here on
line 36 and I'll turn of the other ones
I will
relaunch the session
and I will resume now it starts stops
here
expression should be why are watchable
the arts here's the first
values Peter it resume
the next one is France for saw so
you can be strategic about your break
points and you can
set them to sable them report few
another of thing worse break points is
that you can right mouse on them
and say I import
export them which is Nate I was a really
going to comment on that right now but
you can set them share them among
development team so pure someone else on
your team and you want them to
look at your code is well you can share
birth cert set breakpoints a you for Sat
get them to watch
same code at the same time I'm
what i was gonna show you here she can
set conditions so you can say
conditional the poor a
breakpoint is only stop here if
something else
is true so if you're wanna stop
at iteration number its for
instead of going through every time
before for next pope
you can set that here
okay so another I'm by them that we can
look at
exterminate the sectional leave
everything in place I'm
is in the browser itself
I'm there's Sen provides to toolbars
and I'm
I'm using the one for Firefox
is also on for Internet Explorer I'm
you're usually asks if you want to
install it ok
same time you're installing a San studio
or you can just go out to the
send a common installer
on its own so me excuse me
here like I said before is our
code running in Park
this browser toolbar here
mom called Dance Studio gober
is where I was talking about now you
have to do some setup
get it working first thing to do is to
check your extra star
your settings and I mentioned earlier
that this was the
I'm broadcasting port that we had to be
aware of
so your work it wasn't finding it
properly
just make sure you have that or set
to the same place in when though
preferences PHP book
installed
burgers and configure
and just make sure you have this
broadcast
or so to the same I'm
also for
everything else should be spawning
if it can't find the bugger
in the settings you can actually browse
for
XQ in a struggle but usually its auto
detect one
on installation confined ok so with
those things so
arm there are
some items here on this wilbur
her very valuable
on the far right here you can stick and
search for things that you want to use
their own little send
surgeons and outcomes and saw a speech
it be done and so on me so custom
search you can search for things there
that's not the main thing here's the
main thing
is to debug you want to debug this
I am page that you're working on from
the browser
you can launcher
right away so I was clicking on the bug
this
his attack goes into a state of
flux so to speak you see down below here
that mines and studios trying to get my
attention
but and a quick on it its
telling me that it has started its the
books so it knows the code that I am
in knows far when I'm trying to debug
and no have switched over and started a
depict session triggered from the
browser so that guy named
terminate this
go back to my browser it wills talk to
me about the bug him a PHP
are its kind internally trying to
download file
but to ignore that because it's heard
the the book section so here we can see
a are running Co to debug
switch now started again and again i
cant Germany
well you do have some
options here in the debugger you wanna
what's what I was doing is to bring the
current page
which can say is also said it but the
next page which is
are helpful if you have to fill in a
form and then click the Submit button or
something
and then submit what follows up or you
can
apps bug debug any form some pager and
are all pages on the site which is and a
little bit too much maybe
the other extra stuff is someone's Inc
San sites and products and so on
PHP dotnet take you right to that so
there
these are just a generally external
links
ways to get support we'll talk a profile
here in a minute
but I'm that's one other way to I look
at your coat as well
not really debugging per se but it is
certainly
and related and
so that's two the toolbar sent to a bar
and any questions on that
accused but what you type in your
questions if you have any
will carry on so the next yr item
that we want to cover is in fact
profiling
and it has its own perspective so let's
go back to the peach
p perspective here
and
open up the PHP profile perspective
know again this is another way of
looking at things
I'm primarily what it will do is
I'm to also has its own City
use I'm which can do is 125
it'll keep you cozy currently has open
if your emails on that
it also profile as a PHP web application
the quick on that it'll run through the
code executed
and give you some statistics on again
this is this is real simple file
but arm
it gives you some statistics this isn't
a this is the time spent
within a certain file obviously it's all
within the same on all sorts going
for parts are but if you look at some
the execution statistics you'll see
how much time you this is a great way to
look for bottlenecks
your code if your code isn't very
efficient it'll show you how many times
it has run through certain segments Co
if you double-click on function so I'm
it'll show you in the code
hearst the yeah I'm functionals
take you to that location in the coach
so I double click on gifts way workers
it takes me to
exploit workers in micro which is any
connection errors while
I'm so either I'm other than that then
fears execution flow you can drill down
into it
here's a display workers sway workers
call grow colder this many times
and this is the time spent a percentage
execution
in each one so you see no to something
in here
took three point 13 seconds to run
the whole remaining system and it's a
way to show maybe this row colour
I'm ran extra-long and you wonder what
figure why that's one way profile
so again it's your statistics here
and again your profile obviously archer
years going to a.m. show you some
a different breakdown if using multiple
files so we're gonna go back into
the debug session here for one more
minute
actually I wanna going to
back into the code what I wanted to hear
show you anything
if in might who knows this code has been
commented out
and I'm requiring once a class code PHP
lacrosse coach at PHP is in another
project altogether
here's file your with the debug sessions
I'll artist you have to make a
connection between
to project so under properties an
example project
I can go into I'll
project references if the check mark
beside Costco
soon as I do that these two projects
are now connected in the way
of I'm
debugging and code assistance or
so I'm gonna I'm comment screw
gonna start in other debug session
so it saves amber had some options are
asking me to save it before I went
yes and I'll switch to this perspective
now I still have my break points
return the mall of so notice that its
star are
retain the breakpoints from different
sections
and I'm gonna set a new breakpoint just
down here on mining
require large gonna run to that on
and in person five were to step into
when I step into it knows that this
Christ code PHP file cousin
wasn't open so it opened it for me
which was nice and it runs scan sir with
a focal shift five
now I'm back to my coat my main code
trolling coca-cola
and I'm going to instantiate this
congress when I asked
the signal course when I instantiate
this it's basically a step into the
constructor
and nothing there's no code here in the
constructor so runs it steps into it
and I'm
comes back me now if I hit f5 again
gonna step in the myspace a message
finds that method
and I'm stepping into it and stepping
through that occurred
again there's for next loop you're gonna
go through that repeatedly
and then here's a great way to go step
return
we should take it back to my the code
the call
so this is calling in stepping into
different code
I'm that I'm
is in different projects and in
different files
so now you terminate the session and I'm
gonna switch to the profile section
and I'm gonna run it again just other
profile
and see my archer changes
I got a bunch of errors requireonce
warnings
i know i
bill %uh require elementary no such file
or directory
interesting so in the profile session
equipment yet into up the Congo
trial it should because
it's very similar %uh from
let's get rid of this one
stern new section see what happens
same error messages
I'm so there's no profile because at the
error message it failed so
what's interesting I'm not sure why that
profile didn't go into
I'm into that session was change require
once too soon require or krueger
in seeing
what happens there sol se this or yes
I your profile annus
still have the same errors
interesting I
well for some reason so going into that
and picking up
the time it spent inside there but the
other coded run
and you saw it for you say
you this control I'm gonna try few
it this you
so your profile this your
you I miss its major
major no no apparent so
I'm might be some issues
against speech her to see you nine it
just came out with Mike 2-3 weeks goes
there might be some issues there with
the profiling
anyway
that is I'm debugging with Sen Studio
for Eclipse
and different connections between a.m.
different files and breakpoints
marks variables and so on I'm
so where time intercession you have any
final questions before we're done per
today
okay there's no questions thank you for
your time
and I did record the session so
I will send it to we meet and
he will be able to share its anyone else
that didn't make the search
so thanks for your time and your
attention
and say goodbye for now